NavNet Service Manual b 7.19.2002

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MODEL 17XX/17XXC

MODEL 1833/1833C

MODEL 19XX/19XXC

GP-310B

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Your Local Agent/Dealer Your Local Agent/Dealer 9-52 Ashihara-cho, 9-52 Ashihara-cho, Nishinomiya, Japan Nishinomiya, Japan Telephone : Telephone : 0798-65-21110798-65-2111 Telefax : Telefax : 0798-65-42000798-65-4200 FIRST EDITION :

FIRST EDITION : DEC.DEC. 20012001

B :

B : JUL.JUL. 19,200219,2002 PUB.No.

PUB.No. SME-34940-BSME-34940-B (( KAOKKAOK )) NAVNETNAVNET

SME34940B00

* S M E 3 4 9 4 0 B 0 0 * * S M E 3 4 9 4 0 B 0 0 *

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SPU Board

The SPU board, 03P9354 is designed to receive video signal of linear type. Test points on the board function as below. This board is connected to the video IF amplifier of linear type.

TP No. Signal Rating Condition

TP1 VIDEO INPUT Approx. 4 Vpp (Main Bang Level) TP2 HD 5 V, Negative (0V)

TP3 TX TRIG 9 to 12 Vpp positive, approx. 8 to 12 us Short range: 1950 to 2250 Hz

Midium range: 1100 to 1300 Hz Long range: 550 to 650 Hz

TP4 BP 5 Vpp (180 Hz, 450 pulse/rotation)

TP5 PW_A Short pulse: H, Medium pulse: L, Long pulse: L TP6 PW_B Short pulse: H, Medium pulse: H, Long pulse: L TP7 VIDEO OUT Approx. 4 Vpp (Main Bang Level)

TX

TP8 Remote Controller Input data

A 5V pulse appears when signal is received from the remote control unit. Noise is observed at the absent of the signal.

TP9 Power OFF (to PTU) H: OFF, L: Normal TP10 RESET RESET: H, NORMAL: L TP11 CPU CLK OUT 45 MHz

TP12 Det Battery Level Normal: L, Error: H (approx 2.7 V) TP13 GND TP2 TP3 TP4 TP6 TP8 TP10 TP12 TP11 TP13 TP1 TP7 TP5 S1

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S1 Setting on SPU Board

SW # OFF ON

1 Model GD 2 Not used

INV Board

INV board, 03P9355 is an Inverter for LCD backlighting and it is piggyback-mounted onto the SPU board, 03P9354.

MCN Board

MCN board, 03P9358 is a Connector conversion board for the LCD unit.

INT Board

INT board, 03P9357 is newly developed for M1723C to rotate the antenna at a speed of 30 rpm in short range.

Fig. 2 INV Board (03P9355)

Fig. 3 MCN Board (03P9358)

Fig. 4 INT Board (03P9357)

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Fig. 5 Block Diagram of INT board, 03P9357

Schematic Diagrams attached

Display unit (Model series) C3515-K02 S-1 Display unit (GD-1710C) C4426-K01 S-2 INV board 03P9355 C3515-K03 S-3 MCN board 03P9358 C3515-K05 S-4 M1723C Scanner unit C3515-K01 S-5 INT board 03P9357 C3515-K04 S-6 To Motor B801 +5 V Control Circuit, Q5 +5V MD (From MD board)

+5 V INT for ICs on INT board (Vcc for U1 to U6) MOTOR+ (Motor on/off signal) Oscillator U1 PLL _U4 Counter U3 F/F U2 Driver Q1 to Q4 Counter U5 BP (450) AC RAIN Circuit CR5, Q8 To IF AMP TX TRIG AC RAIN To IF AMP -6 V, +5 V, +12V To MD board PL-A and PL-B Counter U6 PL-A AP3 - 4

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1.1 General...1-1 1.2 About The NavNet ...1-2 1.3 NavNet cables ...1-5 1.4 Connection to hub...1-6 1.5 Notice on making NavNet network ...1-6 1.6 Network setup ...1-9 1.7 ARP Function ...1-12 1.8 Connection of ETR ...1-13 1.9 Differences between NavNet products ...1-14 1.10 Special keystrokes ...1-15 1.11 Boards & Major Components...1-16 1.12 Specifications...1-18 1.13 Radar Antenna Compatibility ...1-22 1.14 Detail of Input/Output Data and Signals...1-23 1.15 Sub-display Function...1-24

Chapter 2. Circuit Description

2.1 General...2-1 2.2 Function of Board (Display Unit)...2-3 2.3 SPU board...2-4

2.3.1 Auto Tuning Function ...2-8 2.3.2 Manual tuning ...2-9 2.3.3 Tuning Indication ...2-9 2.3.4 Video Level Adjustment (03P9288/19P1001) ...2-9 2.3.5 Echo Averaging (EAV)...2-10

2.4 ARP Function (optional) ...2-11 2.5 PWR Board ...2-14 2.6 NTSC/PAL I/F Board (19P1004, optional) ...2-18 2.7 Output signal to remote display unit...2-19 2.8 Scanner unit ...2-20

2.8.1 Modulator board ...2-21 2.8.2 IF amplifier board...2-32 2.8.3 MIC ...2-34

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3.1 GPS Antenna Unit (GP-310B) ... 3-1 3.2 Network Sounder Unit (ETR-6/10N) ... 3-2 3.3 Display Unit (MODEL 17xx, GD-1700)... 3-3 3.4 Display Unit (MODEL 17xxC, GD-1700C)... 3-5 3.5 Display Unit (MODEL 1833/1933/1943)... 3-9 3.6 Display Unit (MODEL 1833C/1933C/1943C, GD-1900C)... 3-14 3.7 Scanner Unit (MODEL 1722/1722C)... 3-19 3.8 Scanner Unit (MODEL 1732/1732C, MODEL1833/1833C)... 3-21 3.9 Scanner Unit (MODEL 1742/1742C)... 3-23 3.10 Scanner Unit (MODEL 1762/1762C)... 3-25 3.11 Scanner Unit (MODEL 1933/1933C) ... 3-28 3.12 Scanner Unit (MODEL 1943/1943C)... 3-32

Chapter 4. Adjustment

4.1 Adjusters ... 4-2 4.1.1 MAIN (20P8170) Board-ETR-6/10N ...4-2

4.1.2 SPU (03P9280) Board – MODEL 1722/1732/1742/1752/1762...4-3 4.1.3 SPU (03P9286) Board – MODEL 1722C/1732C/1742C/1762C ... 4-4 4.1.4 SPU (03P9288) Board – MODEL 1833/1933/1943... 4-5 4.1.5 SPU (19P1001) Board – MODEL 1833C/1933C/1943C, GD/GP-1900C... 4-6 4.1.6 PWR (03P9282) Board – GD/GP-1700/1700C... 4-7 4.1.7 PWR (03P9283) Board – MODEL 1722/1722C/1722/1732/1732C/1742/1742C/1762/1762C ... 4-8 4.1.8 PWR (19P1005) Board – MODEL 1833C/1933C/1943C, GD/GP-1900C... 4-9 4.1.9 CRT (A1QA90SPXX) – MODEL 1833/1933/1943... 4-10 4.1.10 PIP (19P1004) Board – MODEL 1833C/1933C/1943C, GD/GP-1900C...4-12 4.1.11 ARP (18P9013) Board...4-13

4.1.12 INT (03P8630) Board – MODEL 1742/1742C ...4-14 4.1.13 INT (03P9298) Board – MODEL 1722/1722C ...4-15 4.1.14 IF AMP (IF-7758C) Board – MODEL 1742/1742C ...4-16

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Chapter 1. General

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1.1 General

Furuno’s “NavNet” is the Ethernet based high-speed network. NavNet products will allow us to customize marine electronics according to user’s needs with simple cablings. All display units are capable of controlling any component connected to the NavNet network. NavNet series include; 1) 7-inch monochrome radar/video plotter: Model 1722/1732/1742/1752/1762

2) 7-inch color radar/video plotter: Model 1722C/1732C/1742C/1752C/1762C 3) 10-inch monochrome CRT radar/video plotter: Model 1833/1933/1943 4) 10.4-inch color LCD radar/video plotter: Model 1833C/1933C/1943C 5) 7-inch monochrome STN LCD Video plotter: GD-1700

6) 7-inch monochrome color TFT LCD Video plotter: GD-1700C 7) 10.4-inch color TFT LCD video plotter: GD-1900C

8) Network sounder: ETR-6/10N 9) GPS receiver antenna: GP-310B

The GPS receiver antenna GP-310B looks like an antenna, but it is a compact 12-channel GPS receiver.

The IF amplifier used on the NavNet series radars differs from model to model: Model 1722/1722C/1732/1732C/1742/1742C/1752/1752C/1762/1762C uses “Linear” IF amplifier, while Model 1833/ 833C/1933/933C/1943/1943C uses “Logarithmic” IF amplifier.

An Ethernet repeating hub needs to be arranged locally for a multiple display system.

* Ethernet is a trade mark of Xerox corporation, registered in U.S. and other countries.

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1.2 About The NavNet

1.2 About The NavNet

The following describes more details about NavNet. The NavNet is a baseband network that provides a single channel for communications across the physical medium (e.g., cable), so only one device can transmit at a time. An analogy is a single phone lines such as you usually have to your house: Only one person can talk at a time – if more than one person wants to talk everyone has to take turns. Data travels in packets on a network. Packets are transmitted in standard Ethernet frames. The Ethernet header contains the destination and source addresses and the Ethernet type code. The data field immediately follows the header.

+- - - -+

| 6 byte | Destination Address | |

+- - - -+

| 6 bytes | Source Address Header | |

+- - - -+

The NavNet supports a 10 Mb/s transmission rate over two pairs of Category 3 shielded twisted pair (STP) cabling. The NavNet protocol is TCP/IP and the media access control mechanism used by the NavNet is CSMA/CD (Carrier Sense Multiple Access).

Table 1 compares the NavNet with different physical types of Ethernet.

Table 1.1 NavNet vs. Ethernet

10Base5 10Base2 10Base-T 100Base-T2 NavNet

Cable type Single 50-ohm coaxial cable (10mm thick) Single RG 58 coaxial cable (5mm thick) Two pairs of 100-ohm Category 3 or better unshielded twisted pair (UTP) cabling Two pairs of 100–ohm Category 3 or better unshielded twisted pair (UTP) cabling Two pair of Category 3 shielded twisted pair (STP) cabling Transmission rate 10M bps 10M bps 10M bps 100M bps 10M bps Maximum segment length in meter 500 185 m 100 m 100 m 30 m Maximum number of transceiver per segment 100 30 2 2 2 Maximum network length in meter 2500 (5 segments) 925 (5 segments) 200 (one hub) 200 (one hub) 60 (one hub) Connector RJ-45 RJ-45 RJ-45 RJ-45 MJA6

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All NavNet connections are point-to-point. This implies that a NavNet cable can have a maximum of two NavNet transceivers with one at each end of the cable. One end of the cable is typically attached to an Ethernet repeating hub or an active hub. The other end is attached directly to a NavNet product, which includes a NavNet network interface card (NIC). Two NavNet products may be directly attached to each other without a hub. In this case, a “crossover cable” (type: MJA6SPF0014), of which each end is terminated with a 6 position MJ connector, is used: one pair of wires is used for transmitting data, and the other pair for receiving data. When attaching a NavNet product to a repeating hub, a normal “straight through” cable is used and the cross over function is performed inside the repeating hub. In practically, when the NavNet is connected to the hub, a NavNet conversion cable (type: MJ-A6SRMD/TM11AP8-005) is required.

The run length of NavNet cables is limited to 30 meters. The point-to-point cable connections of the NavNet result in a “star” topology for the network. A star topology consists of a central hub with point-to-point links that appear to radiate out from the center like light from a star. The star topology simplifies maintenance, allows for faster troubleshooting, and isolates cable problems to a single wiring link.

(1) What is a hub?

A hub is a common wiring point for star-topology networks. Hubs have multiple ports to attach the different cable runs. Hubs do not read any of the data passing through them and are not aware of a packet’s source or destination. Essentially, a hub simply receives incoming packets, possibly amplifies the electrical signal, and broadcasts these packets out to all devices on the network. Typically speaking, three different types of hub exist:

1) Passive 2) Active 3) Intelligent

Passive hubs do not amplify the electrical signal of incoming packets before broadcasting them out to the network. Active hubs, on the other hand, will perform this function - - a function that is also present in a different type of dedicated network device called a “repeater.” Some people use the term “concentrator” when referring to a passive hub and the term “multiport repeater” when referring to an active hub. The NavNet uses an active hub. Intelligent hubs add extra features to an active hub that are of particular importance to businesses.

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(2) Cable Category Specifications

EIA/TIA category specification provides for the following cable transmission speeds with specifications.

Table 1.2 Cable categories

Category Data rate (Max.) Remarks

1 No performance criteria

2 4Mb/s Used for telephone wiring 3 16Mb/s Used for Ethernet 10Base-T 4 20Mb/s Used for 10Base-T

5 100Mb/s Used for 100Base-T, 10Base-T

(3) What happens when a collision occurs?

A collision occurs when two devices transmit at exactly the same time. Since only one device can transmit at a time, both devices back off and attempt to retransmit again. Each device waits a random amount of time and the two are very likely to retry at different times. Thus the second one will sense that the network is busy and wait until the packet is finished. If the two devices retry at the same time, they will collide again, and the process repeats until either the packet finally makes it onto the network without collisions.

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1.3 NavNet cables

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1.3 NavNet cables

The table lists the NavNet cables.

Table 1.3 NavNet cables

Parts Name Type Code No. Remarks

MJ NavNet cable MJ-A6SPF0014-010 000-144-421 1m, cross,

6-pin MJ (female)/6-pin MJ (female) MJ NavNet cable MJ-A6SPF0014-050 000-144-422 5m, cross,

6-pin MJ (female)/6-pin MJ (female) NavNet

conversion cable

MJ-A6SRMD/TM11AP8-005 000-144-463 50cm, cross,

6-pin MJ (male)/8-pin RJ-45 (jack)

MJA6SP MJA6SP 1 < - - [TX+] - - - [RX+] - - >3 2 < - - [TX-] - - - [RX-] - - >4 3 < - - [RX+] - - - [TX+] - - >1 4 < - - [RX-] - - - [TX-] - - >2 5 < >5 6 < - - - shield - - - >6

Figure 1.2 Wiring Diagram (MJ-A6SPF0014)

MJA6SR RJ45 1 < - - [TX+] - - - [RX+] - - >3 2 < - - [TX-] - - - [RX-] - - >6 3 < - - [RX+] - - - [TX+] - - >1 4 < - - [RX-] - - - [TX-] - - >2 5 < >5 6 < - - - shield - - - >shield

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1.4 Connection to hub

1.4 Connection to hub

The NavNet series is connected to the hub by using an optional NavNet conversion cable.

Figure 1.4 Cabling to hub with MJ/RJ NavNet cables

1.5 Notice on making NavNet network

In the NavNet network,

1) An Ethernet hub is required to connect three or more NavNet products. 2) Only one hub is used.

3) The cable length between the hub and the NavNet product should not exceed 35 meters. 4) The cable length between the NavNet products should not exceed 30 meters.

5) The radar displays own radar picture only.

6) One radar in the network can be equipped with an optional target autoplotter. The following illustrations show typical connections of NavNet products.

Figure 1.5 One station system

MJA6SPF0014-XXX MJA6SRDMD/TM11AP-005

Local Supply

Hub

MJ MJ MJ RJ-45

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1.5 Notice on making NavNet network

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Figure 1.6 Two station system

Figure 1.7 Three station system

M1833C

GD-1700C

Network Sounder

HUB

M1833C

GD-1700C

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1.5 Notice on making NavNet network

Figure 1.8 Four station system

GD-1700C

M1833C

GD-1900C

Network Sounder

HUB

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1.6 Network setup

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1.6 Network setup

The NavNet uses TCP/IP data communication protocol. TCP/IP is a set of protocols which allow cooperating computers to share resources across a network. TCP stands for Transmission Control Protocol (TCP) and IP for Internet Protocol. IP provides the basic packet delivery service for the NavNet. The IP protocol implements a system of logical host addresses called IP addresses. The IP addresses are used by the NavNet to identify devices and to perform internetwork routing. IP is a connectionless protocol, which means that IP does not exchange control information (called a handshake) to establish an end-to-end connection before transmitting data.

The IP addresses are assigned to the NavNet display units before shipment as below. It is necessary to change the last three digits of the IP address when like models are used in a network. Never set the same IP address in the network. The three digits is any number between 001 and 254.

Table 1.4 IP addresses of NavNet products (Factory-default)

Model IP ADDRESS HOST NAME

MODEL1722/1732/17421752//1762 172.031.003.004 RADAR MODEL1722C/1732C/1742C/1752C/1762C 172.031.003.001 RADAR MODEL1833/1933/1943 172.031.003.002 RADAR MODEL1833C/1933C/1943C 172.031.003.003 RADAR GD-1700/1700C 172.031.014.001 PLOTTER GD-1900C 172.031.003.003 PLOTTER ETR-6/10N 172.031.092.001 SOUNDER

The IP address is set in the NETWORK SETUP menu (Special Hidden Keystroke). See figure below. ▲ IP ADDRESS 172.031.003.001 HOST NAME RADAR________ RADAR SOURCE RADAR________ CHART SOURCE ______________ ______________ ______________ SOUNDER SOURCE SOUNDER_____ SUBNET MASK 255.255.000.000 GATEWAY ADDRESS 000.000.000.000

OFFSET PORT NUMBER

10000

RETURN

NETWORK SETUP

EDIT

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1.6 Network setup

In addition to the entry of the IP address, Host name, Radar source, Chart source, and Sounder source must be entered to get various display modes and display combinations in the NETWORK SETUP menu.

1) Host Name: Type a name for own display unit to distinguish it from others in the network. The factory-default is shown in the above table. The name can contain figures.

2) Radar Source: Type the host name of the display unit from which the radar picture is received. This line is factory-set to RADAR for Model series display unit which comes with the scanner unit.

3) Chart Source: Type the host name of the display unit from which the chart data is received or which has chart card in its slot to use. A maximum of three units, excluding own display unit are preset on three lines.

4) Sounder Source: Factory-default is SOUNDER to connect the network sounder ETR-6/10N to the network. When the ETR-6/10N is not connected, blank this line so that the sounder symbol in the display selection window is disabled with a red X mark.

Subnet mask, Gateway address, and Offset port number are not used. Never change these values. (SUBNET MASK: 255.255.000.000; GATEWAY ADDRESS: 000.000.000.000; and OFFSET PORT NUMBER: 10000)

Radar source and sounder source are also selectable through the user accessible Select source menu. When two radars or more are connected in the network, either of them is selected through the Select source menu by the user. Note that at the moment, one netsounder can be used in the network. The Sounder option is for future-use.

Important!

The same radar source should be selected on the NavNet plotter display units. Never select different radar source on each plotter display unit if two radars and plotters are in the network. For example, in the network shown in the figure below, radar source must be selected to either M1943C or M1833C on both plotters.

Table 1.6 shows the example of setup menu setting for a network shown in Figure 1.10.

Table 1.5 Example of setup menu setting (1)

Display Unit Host name Radar source Chart source Sounder source

M1943C M1943C M1943C GD19 SOUNDER

GD1700C GD17 M1943C GD19, M1943C SOUNDER

GD1900C GD19 M1943C M1943C SOUNDER

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1.6 Network setup

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Figure 1.10 Example of a NavNet network, one radar

Table 1.7 shows the example of setup menu setting for a network shown in Figure 1.11.

Table 1.6 Example of setup menu setting (2)

Display Unit Host name Radar source Chart source Sounder source

M1943C M1943C M1833C Blank GD1700C GD17 M1943C, M1833C Blank GD1900C GD19 M1943C, M1833C Blank M1883C M1833C See Table 1.8. M1943C Blank

The following radar source combinations are possible for a network shown in Figure 1.11.

Table 1.7 Selection of radar source

Display Unit Radar source

(example 1) Radar source (example 2) Radar source (example 3) Radar source (example 4) M1943C M1943C M1943C M1833C M1943C GD1700C M1943C M1833C M1833C M1943C GD1900C M1943C M1833C M1833C M1943C M1833C M1833C M1833C M1833C M1943C

Figure 1.11 Example of a NavNet network, two radars

M1943C ARP *1 HUB GD-1700C SC-60, PG-1000 GP-310B M1833C *1 ! # GD-1900C M1943C ARP *1 HUB GD-1700C SC-60, PG-1000 GP-310B GD-1900C *1 ! ETR-6/10N

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1.7 ARP Function

1.7 ARP Function

In the network shown in Figure 1.12, the radar sends following signals to the plotter. 1) Radar picture

2) Heading data from SC-60 or PG-1000 3) LL and speed data from GP-310B 4) ARP TTM data

Figure 1.12 Signals between radar and plotter

The radar picture includes Heading data so that the display in HU, NU, or CU mode is available on the plotter. TTM data is switched on and off through OUTPUT THROUGH NETWORK menu. A target is acquired and tracking target is erased from the plotter. Note that only one radar in the network can be quipped with ARP board. Table below summarizes controls of radar picture and ARP targets.

Table 1.8

Display unit Mode selection

(HU/NU/CU)

Radar signal

processing ARP function

Mode which displays TTM

M1943C Possible Controlling own radar picture.

Acquiring and Deleting a target

Radar, Plotter, and Combination modes GD-1700C Possible Controlling own

radar picture.

Acquiring and Deleting a target

Radar, Plotter, and Combination modes

In the network shown in Figure 1.11, 1) with the radar source selection of example 4, a target can be acquired and a tracking target can be erased from all display units; 2) with example 1, M1833C cannot control ARP on the M1943C if M1833C displays own radar picture on the screen; and 3) with example 3, ARP target does not appear on the screen.

Table 1.9 ARP vs. radar source setting

Display Unit Radar

source ARP Radar source ARP Radar source ARP Radar source ARP

M1943C M1943C Yes M1943C Yes M1833C No M1943C Yes GD1700C M1943C Yes M1833C No M1833C No M1943C Yes GD1800C M1943C Yes M1833C No M1833C No M1943C Yes M1833C M1833C No M1833C No M1833C No M1943C Yes

Yes: ARP target is displayed and controlled.

M1943C ARP GD-1700C SC-60, PG-1000 GP-310B 1) Radar picture

2) Heading data from SC-60 or PG-1000 3) LL and speed data from GP-310 4) ARP TTM data

Acquiring and deleting target

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1.8 Connection of ETR

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1.8 Connection of ETR

If the ETR receives the interfere from the echo sounder even when Interference Rejecter is turned on, the connection of the external KP is required as below. Drill a hole on the chassis of the ETR to pass through the cable.

Figure 1.13 Connection of External KP

How to make factory reset for IP address

To get factory default setting of IP address and Host name,

1. Put a jumper between J8 #1 and #2, and between J8 #7 and #8. 2. Turn on the ETR.

CR1 lights and then blinks when the reset is complete.

Figure 1.14 ETR-6/10N with cover removed

ETR6/10N YETR6/10N Y ETR6/10N YETR6/10N Y

1 2 3 4 EXTKP_IN EXTKP_OUT J4 EXTKP_OUT J8 J4 CR1

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1.9 Differences between NavNet products

1.9 Differences between NavNet products

(1) Between MODEL 17XX/17XXC and GD/GP-1700/1700C

Table 1.10

Item MODEL 17XX/17XXC GD/GP-1700/1700C

Radar connector (DJ) Provided Not provided

PWR board 03P9283 03P9282

DIP SW setting on SPU board (#1, S1) OFF ON

(2) MODEL 1722/1722C/1732/1732C/1742/1742C/1762/1762C

Antenna type is set as below in the Radar setup menu/Installation setup/system configuration.

Table 1.11

Models Antenna Type Remarks

MODEL 1722/1722C A (24 nm) Radome MODEL 1732/1732C B (36 nm) Radome MODEL 1742/1742C/1752/1752C C (36 nm) Open MODEL 1762/1762C D (48 nm) Open

In watch man mode, radome type antenna stops rotating and open type antenna rotates at STBY. (3) Between MODEL 18X/19XC and GD/GP-1900C

Radar source and Host name in the system setup menu are set as below at installation.

Table 1.12

Models Host name Radar source

MODEL 18XXC/19XXC RADAR (default) RADAR, same as host name

GD/GP-1900C PLOTTER (default) Blank or host name of radar display unit

(4) MODEL 1833/1833C/1933/1933C/1943/1943C

Antenna type is set as below in the Radar setup menu/Installation setup/system configuration.

Table 1.13

Models Antenna Type Remarks

MODEL 1833/1833C B (36 nm) Radome MODEL 1933/1933C F (48 nm) Open MODEL 1943/1943C G (64 nm) Open

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1.9 Differences between NavNet products

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(5) Warm-up time

The warm-up period differs from set to set.

Table 1.14

Models Warm-up time

MODEL 1722/1722C 1:00 MODEL 1732/1732C 1:30 MODEL 1742/1742C/1752/1752C 1:30 MODEL 1762/1762C 1:30 MODEL 1833/1833C 1:30 MODEL 1933/1933C 1:30 MODEL 1943/1943C 1:30

(6) Comparisons of radar antenna

Table 1.15

Type Max. range Ant. type PWR Remarks

A 24 nm Radome 2 kW MODEL 1722/1722C

B 36 nm Radome 4 kW MODEL 1732/1732C/1833/1833C C 36 nm Open 2 kW MODEL 1742/1742C/1752/1752C D 48 nm Open 4 kW MODEL 1762/1762C

E 48 nm Radome Not used

F 48 nm Open 4 kW MODEL 1933/1933C G 64 nm Opne 6 kW MODEL 1943/1943C

In watch man mode, radome type antenna stops rotating and open type antenna rotates at STBY.

(7) 300cd vs. 700cd (MODEL 1833C/1933C/1943C)

a) Type of display unit differs. 300cd : RDP-138; 700cd : RDP-139 b) Type of LCD unit including the chassis differs.

c) One fan motor is used for 300cd and two fan motors for 700cd.

d) 300cd LCD is connected to J104 on the SPU board and 700cd to J105.

1.10 Special keystrokes

Following summarizes the special keystrokes used for NavNet series products. 1) Installation menu: Power on while holding down [MENU].

2) Count down timer bypass:

Press [ENT] five times while holding down the fourth softkey (ST-BY) from top. 3) Complete Radar Installation menu reset:

Select Radar setup menu in the Installation menu, and then, select Next page. Press [CLEAR] key five times while holding down the fourth softkey from top.

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1.11 Boards & Major Components

1.11 Boards & Major Components

DISPLAY UNIT

Board Name MODEL 1722/1732/1742/1752/1762 MODEL

1722C/1732C/1742C/1752C/1762C SPU Board 03P9280 03P9286 NET Board 03P9284 PWR Board 03P9283 PANEL Board 03P9281 LCD Unit F-51232NF JR-SFW EDTCA14QEF Board Name GD-1700 GD-1700C SPU Board 03P9280 03P9286 NET Board 03P9284 PWR Board 03P9282 PANEL Board 03P9281 LCD Unit F-51232NF JR-SFW EDTCA14QEF

* Model 17XX and GD/GP-1700 use different type of PTU board and same SPU board with different Dip Switch settings.

* Display Unit of Model series has a DJ connector, but that of GD/GP does not.

Board Name MODEL 1833/1933/1943 MODEL 1833C/1933C/1943C

GD-1900C SPU Board 03P9288 19P1001 CRD Board - 19P1003 NET Board 03P9284 PWR Board 03P9296 19P1005 FILTER Board 03P9304 - PANEL Board 03P9287 19P1002 INT Board 03P9290 -

ARP Board (Optional) 18P9013 (MODEL series only)

PIP Board(Optional) - 19P1004

MCN Board - 19P1007 (300cd)

CRT/LCD Unit A1QA90SPXX NL6488BC33-31 (300cd) 104MU-1 (700cd)

* Difference between Model 18XX/19XXc and GD-1900c is menu settings. * Display type of RDP-138 is 300cd and RDP-139 is 700cd.

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1.11 Boards & Major Components

1-17

SCANNER UNIT

Board Name MODEL 1722

1722C MODEL 1732 1732C MODEL 1742 1742C MODEL 1752 1752C MODEL 1762 1762C SCANNER Unit RSB-0087 RSB-0071 RSB-0047 RSB-0091 RSB-0070 RF Unit RTR-070 RTR-058 RTR-051 RTR-069 RTR-065 MODULATOR Board 03P9270 MD-9208 MD-9052A 03P9309 03P9235 A

IF AMP Board 03P9299 (Linear AMP) IF-9215 (Linear AMP) IF-7758C (Linear AMP) 03P9310 (Linear AMP) IF-9215 (Linear AMP)

INT Board/RTB Board 03P9298 – 03P8630 03P9311 03P9249

PWR Board – PTU-9335 – 03P9315 – MIC RU-9458 (Original) RU-9458A (Current) RU-9360 (Original) RU-9390C (Current) SRX-25, A RU-9390 RU-9390 Magnetron E3588 E3571 MG5388 MAF1421B E3587 E3571 MG5388 MAF1421B MG5248 E3571 MG5388 MAF1421B MG5248 Circulator Including MIC FCX73 FCX71 RC-4356 RC-4356

Scanner Motor RM-9455 RM-9087A RM-8577 RM-8629

RM-8025 (24rpm) RM-8711 (48rpm)

Signal Cable S03-87-XX S03-88-XX S03-90-XX S03-90-XX S03-89-XX

Board Name MODEL 1833

1833C MODEL 1933 1933C MODEL 1943 1943C SCANNER Unit RSB-0071 RSB-0070 (24rpm) _{RSB-0073 (48rpm)} RSB-0070 (24rpm) _{RSB-0073 (48rpm)} RF Unit RTR-057 RTR-064 RTR-059 MODULATOR Board MD-9208 03P9235 A 03P9235 IF AMP Board IF-9214 (LOG AMP) IF-9214 (LOG AMP) IF-9214 (LOG AMP)

INT Board – 03P9249 03P9249

MIC RU-9360 RU-9390 RU-9390

Magnetron E3571, MG5248 MAF1421B E3571, MG5388 MAF1421B, MG5248 MG5389 E3560 Circulator FCX73 RC-4356 RC-4356

Scanner Motor RM-9087A RM-8025 (24rpm) _{RM-8711 (48rpm)} RM-8025 (24rpm) _{RM-8711 (48rpm)}

Signal Cable MJ-BJ24LPF0002-XX MJ-BJ24LPF0005-XX MJ-BJ24LPF0005-XX

GPS RECEIVER ANTENNA

Board Name GP-310B PWR-IF Board 20P8170 GPS Board GH-79L1A-P

NETWORK SOUNDER

Board Name ETR-6/10N

MAIN Board 02P6294 NET Board 03P9284

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1.12 Specifications

1.12 Specifications

RADAR DISPLAY UNIT

7”Monochrome LCD Radar / VideoPlotter 7”Color LCD Radar /VideoPlotter MODEL 1722

MODEL 1732 MODEL 1742 MODEL 1762 MODEL 1722C MODEL 1732C MODEL 1742C MODEL 1762C

DISPLAY UNIT

Type 7”Monochrome STN LCD 240X320 pixels 7”Color TFT LCD 232X320 pixels

NAVNET Interface Ethernet 10-BaseT

Interface

(NMEA 0183 format) --: any talker (menu selection)

Input: BWC, BWR, DBK, DBS, DBT, DPT, GGA, GLL, GSV, HDT, HDM, HDG, MSS, MTW, MWV, RMA,

RMB, RMC, TTM, VHW, VTG, VYW, VWT, VWR, ZDA

Output: AAM, APB, BOD, BWC, BWR, DBT, DPT, GGA, GLL, GTD, MSK, MTW, RMA, RMB, RMC, TLL,

VHW, VTG, WPL, XTE, ZDA

RADAR CHARACTERISTICS

Display Modes Head-up, Course-up, North-up*, True Motion**

(* Heading input required ** Heading and speed input required)

Range Scales (nm) 0.125 to 24 14 steps 0.125 to 36 15 steps 0.125 to 36 15 steps 0.125 to 48 16 steps 0.125 to 24 14 steps 0.125 to 36 15 steps 0.125 to 36 15 steps 0.125 to 48 16 steps Range Resolution 29 m

Bearing Resolution 6.7 deg 5.5 deg 5.0 deg 3.9 deg 6.7 deg 5.5 deg 5.0 deg 3.9 deg

Minimum Range 41 m

Bearing Accuracy ± 1 deg

Range Ring

Accuracy 0.9 % of range or 8 m, whichever is greater

Echo Trail Interval: 15 s, 30 s, 1 min, 3 min, 6 min, 15 min, 30 min or Continuous

PLOTTER CHARACTERISTICS

Map Scale 0.125 to 1024 nm

Latitude Limits Between 85 deg N and 85 deg S

Plot Interval 1 s to 59 min 59 s or 0.01 to 9.99 nm

Display Modes Course plot, Nav data, Steering display, Highway

Presentation Modes TM/RM North-up, Course-up, Auto Couse-up

Memory Capacity Up to 8,000 points for ship’s track and marks, 1,000 waypoints, 200 planned routes (max. 35 waypoints/route)

Alarms Arrival/anchor watch, XTE, proximity alert, ship speed, depth*, water temperature*, fish*

(*Network sounder required, temperature sensor required for water temperature alarm)

Electronic Charts* Loaded from FURUNO MiniChart, Navionics Nav-Chart, C-MapNT chart cards. *Chart must be determined upon

ordering. Choice of two units: Furuno & Navionics or C-Map

ANTENNA RADIATOR Type φ 460 mm (18”) Radome φ 602 mm (24”) Radome φ 665 mm (2ft) Open φ 1035 mm (3.5ft) Open φ 460 mm (18”) Radome φ 602 mm (24”) Radome φ 665 mm (2ft) Open φ 1035 mm (3.5ft) Open Rotation Speed 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm 24 rpm

Wind Load Relative 100 kt

Beamwidth Hor: 5.2 deg

Ver: 25 deg Hor: 4.0 deg Ver: 20 deg Hor: 3.5 deg Ver: 30 deg Hor: 2.4 deg Ver: 27 deg Hor: 5.2 deg Ver: 25 deg Hor: 4.0 deg Ver: 20 deg Hor: 3.5 deg Ver: 30 deg Hor: 2.4 deg Ver: 27 deg RF TRANSCEIVER

Peak Output Power 2.2 kW 4 kW 2.2 kW 4 kW 2.2 kW 4 kW 2.2 kW 4 kW

Warming up 60 sec 90 sec 90 sec 90 sec 60 sec 90 sec 90 sec 90 sec

Frequency 9410 ± 30 MHz (X- Band)

Pulselength & PRR 0.08 µs/2100 Hz (0.125 to 1 nm), 0.3 µs/1200 Hz (1.5 to 3 nm), 0.8 µs/600 Hz (3 to 48 nm) Intermediate

Frequency 60 MHz

Bandwidth 7 MHz

ENVIRONMENT (IEC 60945 test method)

Temperature -15°C to +55°C (Display unit), -25°C to +70°C (Antenna unit),

Waterproofing IEC 60529 IPX5, USCG CFR-46 (Display unit), IEC 60529 IPX6 (Antenna unit),

POWER SUPPLY Rated Voltage/Current 12 –24 VDC: 3.7-1.8 A 12 –24 VDC: 3.8-1.9 A 12 –24 VDC: 3.9-2.0 A 12 –24 VDC: 4.2-2.1 A 12 –24 VDC: 4.4-2.2 A 12 –24 VDC: 4.5-2.3 A 12 –24 VDC: 4.6-2.3 A 12 –24 VDC: 4.9-2.4 A COMPASS SAFE DISTANCE

Standard 0.90 m

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1-19

RADAR

10”Monochrome CRT Radar / VideoPlotter 10.4”Color LCD Radar / VideoPlotter

MODEL 1833 MODEL 1933 MODEL 1943 MODEL 1833C MODEL 1933C MODEL 1943C

DISPLAY UNIT

Type 10”Green phosphor CRT 481X640 pixels 10.4”Color TFT LCD 640X480 pixels

Interface (NMEA 0183 format)

--: any talker (menu selection)

Input: BWC, BWR, DBK, DBS, DBT, DPT, GGA, GLL, GSV, HDT, HDM, HDG, MSS, MTW, MWV, RMA,

RMB, RMC, TTM, VHW, VTG, VYW, VWT, VWR, ZDA

RADAR CHARACTERISTICS

Display Modes Head-up, Course-up, North-up*, True Motion**

(* Heading input required ** Heading and speed input required)

Range Scales (nm) 0.125 to 36 nm 15 steps 0.125 to 48 nm 16 steps 0.125 to 64 nm 17 steps 0.125 to 36 nm 15 steps 0.125 to 48 nm 16 steps 0.125 to 64 nm 17 steps Range Resolution 20 m

Bearing Resolution 4.0 deg 2.4 deg 1.9 deg 4.0 deg 2.4 deg 1.9 deg

Minimum Range 27 m

Bearing Accuracy ± 1 deg

Range Ring Accuracy 0.9 % of range or 8 m, whichever is greater

Echo Trail Interval: 15 s, 30 s, 1 min, 3 min, 6 min, 15 min, 30 min or Continuous

Presentation Modes TM/RM North-up, Course-up, Auto Couse-up

Memory Capacity Up to 8,000 points for ship’s track and marks, 1,000 waypoints, 200 planned routes (max. 35 waypoints/route)

Electronic Charts* Loaded from FURUNO MiniChart, Navionics Nav-Chart, C-MapNT chart cards. *Chart must be determined

upon ordering. Choice of two units: Furuno & Navionics or C-Map

ANTENNA RADIATOR Type φ 602 mm (24”) Radome φ 1035 mm (3.5ft) Open φ 1255 mm (4ft) Open φ 602 mm (24”) Radome φ 1035 mm (3.5ft) Open φ 1255 mm (4ft) Open Rotation Speed *48 rpm is option 24 rpm 24 rpm/48* rpm 24 rpm/48* rpm 24 rpm 24 rpm/48* rpm 24 rpm/48* rpm

Wind Load Relative 100

kt

Relative wind 100 kt (24rpm)

Relative wind 70 kt (48rpm) Relative 100 kt

Relative wind 100 kt (24rpm) Relative wind 70 kt (48rpm)

Beamwidth Hor: 3.9 deg

Ver: 20 deg Hor: 2.2 deg Ver: 22 deg Hor: 1.85 deg Ver: 22 deg Hor: 3.9 deg Ver: 20 deg Hor: 2.2 deg Ver: 22 deg Hor: 1.85 deg Ver: 22 deg RF TRANSCEIVER

Peak Output Power 4 kW 4 kW 6 kW 4 kW 4 kW 6 kW

Warming up 90 sec

Frequency 9410 ± 30 MHz (X- Band)

Pulselength & PRR 0.08 ms/2100 Hz (0.125 to 1.5 nm), 0.3 ms/1200 Hz (1.5 to 3 nm), 0.8 ms/600 Hz (3 to 64 nm) Intermediate

Frequency 60 MHz

Bandwidth Tx pulselength 0.08µs and 0.3µs:25 MHz, Tx pulselength 0.8µs and 0.3µs:3 MHz

Temperature -15°C to +55°C (Display unit), -25°C to +70°C (Antenna unit),

Waterproofing IEC 60529 IPX5, USCG CFR-46 (Display unit), IEC 60529 IPX6 (Antenna unit),

POWER SUPPLY Rated Voltage / Current 12 –24 VDC: 5.0-2.5 A 12 –24 VDC: 6.5-3.2 A 12 –24 VDC: 7.2-3.7 A 12 –24 VDC: 5.3-2.6 A (300cd) 6.4-3.1 A (700cd) 12 –24 VDC: 5.6-2.7 A (300cd) 6.7-3.2 A (700cd) 7.5-3.6 A (48 rpm) 12 –24 VDC: 6.3-3.1 A (300cd) 7.4-3.5 A (700cd) 8.1-3.8 A (48 rpm) COMPASS SAFE DISTANCE

Standard 0.85 m 0.60 m

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VIDEO PLOTTER

7”Monochrome LCD VideoPlotter 7”Color LCD VideoPlotter 10.4”Color LCD VideoPlotter GP/GD-1700 GP/GD-1700C GP/GD-1900C DISPLAY UNIT Type 7”Monochrome STN LCD 240X320 pixels 7”Color TFT LCD 232X320 pixels 10.4”Color TFT LCD 640X480 pixels

Interface (NMEA 0183 format)

--: any talker (menu selection)

Input: BWC, BWR, DBK, DBS, DBT, DPT, GGA, GLL, GSV, HDT*, HDM*, HDG*, MSS, MTW, MWV,

RMA,

RMB, RMC, TTM, VHW*, VTG, VYW, VWT, VWR, ZDA (For GP-1900C only)

Presentation Modes TM/RM North-up, Course-up, Auto Couse-up TM/RM North-up, Course-up

Memory Capacity Up to 8,000 points for ship’s track and marks, 1,000 waypoints, 200 planned routes (max. 35

waypoints/route)

Electronic Charts* Loaded from FURUNO MiniChart, Navionics Nav-Chart, C-MapNT chart cards. *Chart must be

determined upon ordering. Choice of two units: Furuno & Navionics or C-Map

Temperature -15°C to +55°C

Waterproofing IEC 60529 IPX5, USCG CFR-46

POWER SUPPLY Rated Voltage/Current 12 –24 VDC: 1.5-0.7 A 12 –24 VDC: 2.1-1.1 A (300cd) 3.1-1.6 A (700cd)

COMPASS SAFE DISTANCE

Standard 0.90 m 0.90 m Steering 0.60 m 0.40 m

GPS RECEIVER ANTENNA

GPS RECEIVER GP-310B RECEIVER CHARACTERISTICS

Receiver type Twelve discrete Channels, C/A code, all-in-view

Receiver Frequency L1 (1575.42 MHz)

Time To First Fix 90 seconds typical (Always Cold Start at Turn-on)

Tracking Velocity 999 knots

Geodetic Systems WGS-84, NAD-27 and others

Accuracy 10 m approx (95% of the time )

Control System Controlled by NavNet product

Data Output: NMEA0183

ENVIRONMENT

Waterproofing IEC 60529 IPX6

POWER SUPPLY

Rated Voltage /

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1-21

NETWORK SOUNDER

NETWORK SOUNDER ETR-6/10N TRANSCEIVER CHARACTERISTICS

Display modes Single (50 or 200 kHz), Dual (50 and 200 kHz), Bottom-lock. Bottom Zoom, Bottom Discrimination,

Marker Zoom, A-Scope

Frequency Dual frequency 50 and 200 kHz

Output Power 600 W / 1 kW rms

Range Scale 8 basic ranges customized to max 1,200 m (4,000 ft, 1,300 fa)

Range Phasing Up to 2,400 m (8,000 ft, 1,3000 fa)

Data Output Through Ethernet

ENVIRONMENT

Waterproofing IPX2

POWER SUPPLY

Rated Voltage 12-24 VDC (Max. 11.0 W)

Input/Output Ports

NMEA IN NMEA OUT 12 VDC OUT NMEA IN NMEA OUT HEADING (AD10 or NMEA) NMEA IN RS-232C 12 VDC OUT EXT. BUZZER Connector for Radar Antenna

MODEL 1722/1732/1742/1762 DATA 1 N/A DATA 2 DATA 3 Yes

MODEL

1722C/1732C/1742C/1762C DATA 1 N/A DATA 2 DATA 3 Yes

MODEL 1833/1933/1943 DATA 1 N/A DATA 2 DATA 3 Yes

MODEL 1833C/1933C/1943C DATA 1 DATA 2 DATA 3 DATA 4 Yes

GP/GD-1700 DATA 1 DATA 2 N/A DATA 3 N/A

GP/GD-1700C DATA 1 DATA 2 N/A DATA 3 N/A

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1.13 Radar Antenna Compatibility

1.13 Radar Antenna Compatibility

The NavNet series raders use the same antenna unit as that of existing models.

NAVNET Radars Existing Model Antenna unit IF Amp

7” Mono 7” Color 10” Mono CRT

10” Color CRT 300cd

10” Color CRT 700cd

MODEL 1721M2 RSB-0067 Linear MODEL 1722 MODEL 1722C

MODEL 1731M3 RSB-0071-058 Linear MODEL 1732 MODEL 1732C

MODEL 1751M2 RSB-0047-051 Linear MODEL 1742 MODEL 1742C

RSB-0061-053 Linear MODEL 1762 MODEL 1762C

MODEL 1761M3 RSB-0070-065

(NEW) Linear MODEL 1762 MODEL 1762C

MODEL 821 RSB-0067 Linear MODEL 1722 MODEL 1722C

MODEL 841 RSB-0071-058 Linear MODEL 1732 MODEL 1732C

RSB-0082-065 Linear MODEL 1762 MODEL 1762C

MODEL 851M2 RSB-0070-065

MODEL 861 RSB-0062-056 Linear MODEL 1762 MODEL 1762C

MODEL 1752/1752C

RSB0091-069

MODEL 1832 RSB-0071-057 Log. MODEL 1833 MODEL 1833C MODEL 1833C

RSB-0082-064 Log. MODEL 1933 MODEL 1933C MODEL 1933C

RSB-0083-064

(48rpm) Log. MODEL 1933 MODEL 1933C

RSB-0070-064

(NEW) Log. MODEL 1933 MODEL 1933C MODEL 1933C

MODEL 1932M2

RSB-0073-064

(NEW) (48rpm) Log. MODEL 1933 MODEL 1933C

MODEL 1942M2 RSB-0073-059

FRS-1000A RSB-0071-057 Log. MODEL 1833 MODEL 1833C MODEL 1833C

RSB-0083-064

RSB-0070-064

(NEW) Log. MODEL 1933 MODEL 1933C MODEL 1933C

FRS-1000B

RSB-0073-064

(NEW) (48rpm) Log. MODEL 1933 MODEL 1933C

FRS-1000C RSB-0073-059

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1.14 Detail of Input/Output Data and Signals

1-23

1.14 Detail of Input/Output Data and Signals

Figure 1.15

$ Waypint (Select go to waypoint Data only) $ NMEA Data (Select by menu of OUTPUT

THROUGH NETWORK)

$ Chart Data

$ Key command (Radar/Sounder)

Model1943 N e tw or k Da ta 1 Da ta 2 Da ta 3 SC120 NA V 1 HD G1 GD1900 N e tw or k ETR6/10N GD1900 Ne tw o rk Time, L/L,S/C HUB Key command.(Sounder) $ Sounder Echo $ Depth $ Water Speed $ Radar Echo $ Heading $ TTM Data

$ Waypint (Select go to waypoint Data only) $ Nmea Data (Select by menu of OUTPUT

THROUGH NETWORK)

$ Chart Data

$ Key command (Radar/Sounder)

$ Key command.(Radar)

$ Waypint(Select go to waypoint Data only) $ Sounder Echo $ Depth $ Water speed Chart Card $ Radar Echo $ Heading $ TTM Data

$ Waypint (Select go to waypoint Data only) $ Nmea Data(Select by menu of OUTPUT

THROUGH NETWORK) $ Sounder Echo $ Depth $ Water speed $ Chart Data Time,L/L,S/C Heading

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1.15 Sub-display Function

1.15 Sub-display Function

Navnet 10.4” color LCD display unit (RDP-138/139) can be used as a sub-display unit or a monitor. The connectable radar is logarithmic IF amplifier radar but not linear IF amplifier radar. Software which supports sub-display function:

1950001005 or above (C-MAP version) 1950002009 or above (Navionics version) Hardware:

Serial numbers 4309-2825 to 3104, 3125, and after are equipped with modified SPU board for sub display function.

1) When SPU board is 19P1001-33, only 10 m interconnection cable can be used. Using the cable more than 10 m results in a noisy screen.

2) When SPU board is 19P1001-44, available is 10 m, 20 m and 30 m interconnection cable. Field modification

Change the SPU board with –44 board or above. Interconnection cables:

Parts Name Type Code Number Remarks

Cable Assy MJ MJ-B24LPF0008-100 000-145-125 10 m

Port to be used: DJ1 connector Menu Setting:

Select “MONITOR MODE” in RADAR SETUP menu (INSTALLATION SETUP/ SYSTEM CONFIGURATION/Installation menu).

Factory-modified sets

Serial number of RDP-138/139 which equipped with –44 SPU board;

4309-3189 to 3215, 3219 to 3237, 3239 to 3240, 3248 to 3338, 3340 to 3344, 3346 to 3356, 3358 to 3370, 3373 to 3402, 3405 to 3442, 3444, 3446, 3448, 3449, 3454 to 3455, 3458, 3461, 3463, 3471, 3472, 3476, 3478 to 3480, 3501 and after

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Chapter 2. Circuit Description

2-1

This chapter describes the circuit of NavNet series products briefly.

2.1 General

NavNet series radar is divided into two groups depending on the type of IF amplifier. One uses a linear IF amplifier and the other a logarithmic amplifier. Figures 2.1 and 2.2 show the simplified block diagram of each system.

TX: The trigger pulse, generated on the Processor (SPU) board in the display unit, is delivered to the modulator in the scanner unit to oscillate the magnetron. The radar emits radio wave from the radiator with the magnetron oscillating.

RX: The 9.4 GHz echo signal received by the antenna is converted down to 60 MHz IF signal by the MIC. The IF amplifier amplifies the IF signal and output it to the video circuit on the SPU board. The signal is displayed on the screen after digital signal processing. The received signal is gain-, A/C sea-, and A/C rain-controlled in the linear IF amplifier, while the signal is not controlled in the logarithmic amplifier but it is controlled in the video amplifier on the SPU board in the display unit.

Auto plotter (Optional):

Applied from the SPU board to the ARP board are; 1) Heading in AD format

2) 8192 bearing pulse 3) Video

4) Trigger

5) Ship’s speed in IEC-61162 format.

The ARP board acquires and tracks targets. Data and symbol of the acquired target are displayed on the screen via the SPU board. Target data includes position, CPU, TCPA, speed, and course.

Mag. MIC Mod. IF Amp RF Module Antenna Scanner Unit Processor Panel Power LCD

Ship’s mains _Nav. Gyro

Display Unit

HD,BP

Video Trigger GAIN, A/C SEA, A/C RAIN

Figure 2.1 Simplified block diagram of radar which uses a linear IF amplifier (MODEL 1722/1722C/1732/1732C/1742/1742C/1752/1752C/1762/1762C)

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2.1 General Mag. MIC Mod. IF Amp RF Module Antenna Scanner Unit Processor Panel Power CRT or LCD

Ship’s mains Nav. Gyro Display Unit HD,BP Video Trigger M1832-SME-8 ARP *Option

Figure 2.2 Simplified block diagram of radar which uses a logarithmic IF amplifier (MODEL 1833, 1833C, 1933, 1933C, 1943, 1943C)

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2.2 Function of Board (Display Unit)

2-3

2.2 Function of Board (Display Unit)

Board Name Function

SPU Board

03P9280 03P9286 03P9288 19P1001

1) Includes a video amplifier circuit. (03P9288/19P1001 used for logarithmic amplifier) (a) Applies GAIN, STC, FTC and IR to video signal and outputs to the A/D converter. (b) Adjusts video signal input level (adjusted by Radar SETUP MENU).

(c) Changes STC curve according to the antenna height set on the Radar SETUP menu.

2) Outputs Gain, A/C sea, and A/C rain control signals to the scanner unit. (03P9280/03P9286 used for linear amplifier)

3) Performs A/D conversion of video signal.

(8 gradation : 03P9286/03P9288/19P1001, 4 gradation : 03P9280) 4) Processes the signal for Echo averaging (EAV 1/2/3)

5) Constructs radar picture using HD, BP, TRIG, and VIDEO signals. 6) Controls keyboard.

7) Controls tuning circuit.

8) Outputs Tx trigger and pulselength selection signals to the antenna unit. 9) Processes the signal for Echo trailling.

10) Generates Plotter and Echosounder displays. 11) Memories the base chart (rough world map).

12) Is equipped with a flash ROM which memories system program. 13) Communicates with F-NET board.

14) Transmits and receives data in IEC61162 and AD10 formats. 15) Receives RGB signal from NTSC/PAL I/F board, 19P1004. 16) Outputs signals to the remote or sub display (19P1001/03P9288).

17) Memorizes RADAR SETUP menu settings, tune voltage and tune Ind. voltage onto the EEPROM.

18) Memorizes PLOTTER/RADAR/GPS operation menu settings, marks, waypoints, and track onto the SRAM.

19) Checks for the presence of ARP boards at power-up. (03P9288/19P1001) 20) Displays navigation data being fed from a navigator.

21) Reads and displays trackball and ENTER knob data.

PWR Board 03P9282 03P9283 03P9296 19P1005

1) Voltages which the board generates

03P9282: +5.1V, -12V, +12V, -24V, and motor drive voltage 03P9283: +5V, -12V, +12V, -24V, and motor drive voltage 03P9296: +5V, -12V, +12V, and motor drive voltage 19P1005: +3.3V, +5V, -12V, +12V, and motor drive voltage 2) Protectors

1) Short circuit on line voltages

2) Input low- and over-voltage (10.8 Vdc or low; 31.2 Vdc and high)

3) The board outputs PF (Power Failure) signal to the SPU board before shutting down.

ARP Board 18P9013, Optional

1) Compatible with the latest ARP-10 hardware.

2) Converts GAIN-, STC-, FTC-, and I/R-processed video signal into quantized video (QV). 3) Performs automatic and manual target acquisition and tracking.

4) Detects HD, BP, TRIG, VIDEO, LOG and GYRO signal errors. 5) Calculates CPA and TCPA.

6) Detects land echo.

7) Outputs ARPA data to the SPU Board: Target No., R/B, CPA, TCPA, etc.

NET Board 03P9284

1) Receives data from the SPU board and transmits it in NavNet standard (10Base-T). 2) Memorizes data from the SPU and other N-NET boards temporarily.

3) Listens to the network to see if it is busy. If not, it transmits the packet of data. 4) Has a MAC address or unique hexadecimal serial number assigned to each NavNet

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2.3 SPU board

2.3 SPU board

Figures 2.3, 2.4, 2.5, and 2.6 show the block diagram of SPU board used in NavNet products.

Figure 2.3 Block diagram of SPU board, 03P9280, receiving output of linear IF amplifier

T1, L1, Q23, T1, L1, Q23, T1, L1, Q23, T1, L1, Q23, L2, C168 L2, C168 L2, C168 L2, C168 NMEA/AD10 NMEA/AD10 NMEA/AD10 NMEA/AD10 23.8 MHz GA1 32bit CPU RESET SDRAM 16 Mbit*2 V832 µPD705102 32 32 FLASH ROM 16Mbit*2 16 SERIAL I/O SRAM 1Mbit*2 16 Battery Lithium DRAM 4Mbit*2 16 GA3 16 DRAM 4Mbit*3 16 25.175 MHz 77.7 MHz DRAM 4Mbit 16 8 VIDEO SIG COMP *7 LOG AMP VIDEO D/A GAIN, A/C SEA, TUNE CONT.

Synchronous serial REMOTE I/O 8 Synchronous serial Remote Remote Remote Remote LCD LCD LCD LCD VIDEO VIDEO VIDEO VIDEO A/D 8 Key sense Key sense Key sense Key sense Encoder EncoderEncoder Encoder PC PCPC PC CLF HV CLF HV CLF HV CLF HV RADAR ECHO TRAIL CPU BUS Buffer Cha ChaCha

Chart Cardrt Cardrt Card rt Card 16 F

FF F----NetNetNetNet

PLOTTER CHART SOUNDER SERIAL I/O SERIAL I/O NMEA NMEANMEA NMEA TUNE_IND HEADING,EXT_TRIG FLASH ROM 8Mbit*2 32 U45 U45 U45 U45 EEPROM 2kbit 1 U57U57U57U57 U40 U40 U40 U40 U61 U61U61 U61 U5 U5U5 U5 U5 U5U5 U5 03S9060 U24, 25 U24, 25U24, 25 U24, 25 PLL BEARING U4U4U4U4 U41 to 49 U41 to 49U41 to 49 U41 to 49 U34 U34U34 U34 U47, 58 U47, 58 U47, 58 U47, 58 U35 U35 U35 U35 U69 U69 U69 U69 U33, 39 U33, 39 U33, 39 U33, 39 U38 U38U38 U38 U71, U71, U71, U71, 78 78 78 78 U10 U10U10 U10 U11 U11 U11 U11 U36 U36 U36 U36 U19 U19 U19 U19 U70, 72, 73, U70, 72, 73, U70, 72, 73, U70, 72, 73, 74, 75, 77, 80 74, 75, 77, 80 74, 75, 77, 80 74, 75, 77, 80 BT1 BT1 BT1 BT1 BASE CHART DATA, RADAR SIMULATION DATA PROGRAM J102 J104 J108 J107 J102 PWM J106 J105 TUNE CONT. TUNE CONT. TUNE CONT. TUNE CONT. Back Light J104 J103 Reference Voltage

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2.3 SPU board

2-5

Figure 2.4 Block diagram of SPU board, 03P9286, receiving output of linear IF amplifier NMEA/AD10 NMEA/AD10 NMEA/AD10 NMEA/AD10 23.8 MHz GA1 32bit CPU RESET SDRAM 16 Mbit*2 V832 µPD705102 32 32 FLASH ROM 16Mbit*2 16 SERIAL I/O SRAM 1Mbit*2 16 Battery Lithium DRAM 4Mbit*2 16 GA3 16 DRAM 4Mbit*3 16 77.7 MHz DRAM 4Mbit 16 8 VIDEO SIG COMP LOG AMP VIDEO D/A GAIN, A/C SEA, TUNE CONT.

Synchronous serial REMOTE I/O 8 Synchronous serial Remote RemoteRemote Remote LCD LCD LCD LCD VIDEO VIDEOVIDEO VIDEO A/D 8 Key sense

Key senseKey sense Key sense Encoder Encoder Encoder Encoder PC PC PC PC CLF HV CLF HV CLF HV CLF HV RADAR ECHO TRAIL CPU BUS Buffer Chart Card

Chart CardChart Card

Chart Card 16

F F F F----NetNetNetNet

PLOTTER CHART SOUNDER RADAR MARK SERIAL I/O SERIAL I/O NMEA NMEA NMEA NMEA TUNE_IND HEADING,EXT_TRIG Reference Voltage FLASH ROM 8Mbit*2 32 U53 U53U53 U53 EEPROM 2kbit 1 U28U28U28U28 U27 U27U27 U27 U34 U34U34 U34 U25 U25 U25 U25 03S9060 U1, 21 U1, 21U1, 21 U1, 21 PLL

BEARING U17U17U17U17 U19, 22, 23 U19, 22, 23 U19, 22, 23 U19, 22, 23 30, 32, 39, 30, 32, 39, 30, 32, 39, 30, 32, 39, 47 47 47 47 U26 U26U26 U26 U54, 68 U54, 68 U54, 68 U54, 68 U43 U43U43 U43 U53 U53 U53 U53 U36, 37 U36, 37U36, 37 U36, 37 U29 U29 U29 U29 U50, 64 U50, 64 U50, 64 U50, 64 U41 U41U41 U41 U11 U11U11 U11 U18 U18U18 U18 U14 U14 U14 U14 U49, 61, 62, U49, 61, 62, U49, 61, 62, U49, 61, 62, 63, 69, 70, 71 63, 69, 70, 71 63, 69, 70, 71 63, 69, 70, 71 BT1 BT1BT1 BT1 BASE CHART DATA RADAR SIMULATION DATA PROGRAM J102 J104 J108 J107 J102 PWM J106 J105 SCANNER UNIT SCANNER UNIT SCANNER UNIT SCANNER UNIT TUNE CONT. TUNE CONT. TUNE CONT. TUNE CONT. Back Light J104 J103 LCD I/F LCD I/F LCD I/F LCD I/F

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2.3 SPU board

Figure 2.5 Block diagram of SPU board, 03P9288, receiving output of logarithmic IF amplifier NMEA/AD10 NMEA/AD10NMEA/AD10 NMEA/AD10 PANEL LED PANEL LED PANEL LED PANEL LED 22.5 MHz GA2 32bit CPU RESET SDRAM 16 Mbit*2 V833 µPD705102 32 32 FLASH ROM 16Mbit* 32 16 SERIAL I/O SRAM 1Mbit*2 16 Battery Lithium SDRAM 16Mbit* 32 GA3 GA1 16 DRAM 4Mbit*3 16 25.175 MHz 77.7 MHz SDRAM 16Mbit 16 VIDEO H,VSYNC SYSTEM CLK 8 VIDEO SIG COMP *7 AMP VIDEO D/A TUNE Synchronous serial REMOTE I/O 8 Synchronous serial Remote Remote Remote Remote R,G,B Hsync, Vsync Track Ball

Track BallTrack Ball Track Ball CRT CRT CRT CRT D/A

AMP EXT DISPLAYEXT DISPLAYEXT DISPLAYEXT DISPLAY

BUFFER VIDEO SUB DISPLAY SUB DISPLAY SUB DISPLAY SUB DISPLAY VIDEO VIDEO VIDEO VIDEO A/D 8 Key sense

Key senseKey sense Key sense

En En En Encodercodercodercoder

PC PC PC PC Back Light Back Light Back Light Back Light PWM RADAR ECHO TRAIL CPU BUS Buffer Chart Card

Chart Card 16

F F F F----NetNetNetNet ARP11 ARP11 ARP11 ARP11 PLOTTER CHART SOUNDER SERIAL I/O SERIAL I/O GPS GPS GPS GPS SERIAL I/O NMEA NMEA NMEA NMEA TUNE_IND HEADING,EXT_TRIG

A/C SEA, A/C RAIN, GAIN

FLASH ROM 8Mbit*2 16 D/A AMP U61,62,63 U61,62,63 U61,62,63 U61,62,63 EEPROM 4kbit 1 U70U70U70U70 U46 U46U46 U46 U65 U65U65 U65 U87 U87 U87 U87 U38 U38U38 U38 U86 U86 U86 U86 03S9530 19S1007 03S9060-1 U47,48 U47,48U47,48 U47,48 PLL

BEARING U57U57U57U57 U71,74,90,91, U71,74,90,91, U71,74,90,91, U71,74,90,91, U95,100,101 U95,100,101 U95,100,101 U95,100,101 U51,52 U51,52U51,52 U51,52 U41,42 U41,42U41,42 U41,42 U53 U53 U53 U53 U39,40 U39,40U39,40 U39,40 U7,18 U7,18 U7,18 U7,18 U6 U6 U6 U6 U15,26 U15,26U15,26 U15,26 U22 U22 U22 U22 U19 U19 U19 U19 U5 U5 U5 U5 U45 U45 U45 U45 U79,80,83 U79,80,83U79,80,83 U79,80,83 PWM BUZZER BUZZER BUZZER BUZZER U2,BT U2,BTU2,BT U2,BT

U18: BASE CHART DATA U27:RADAR SIMULATION DATA PROGRAM J103 J107 J101 J108 J101 J103 J109 J102 J101 J103 PWM J102 J105 J110 J106 SCANNER UNIT SCANNER UNIT SCANNER UNIT SCANNER UNIT TUNE CONT. TUNE CONT.TUNE CONT. TUNE CONT.

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2.3 SPU board

2-7

Figure 2.6 Block diagram of SPU board, 19P1001, receiving output of logarithmic IF amplifier NMEA/AD10 NMEA/AD10 NMEA/AD10 NMEA/AD10 PANEL LED PANEL LED PANEL LED PANEL LED 22.5 MHz GA2 32bit CPU RESET SDRAM 16 Mbit*2 V833 µPD705102 32 32 FLASH ROM 16Mbit*2 32 16 SERIAL I/O SRAM 1Mbit*2 16 Battery Lithium SDRAM 16Mbit*2 32 GA3 GA1 16 DRAM 4Mbit*3 16 25.175 MHz 77.7 MHz SDRAM 16Mbit 16 VIDEO SIG H,VSYNC SYSTEM CLK 8 VIDEO SIG COMP *7 AMP VIDEO D/A TUNE Synchronous serial REMOTE I/O 8 Synchronous serial Remote Remote Remote Remote R,G,B Hsync, Vsync Track Ball Track Ball Track Ball Track Ball LCD LCD LCD LCD D/A

AMP EXT DISPLAYEXT DISPLAYEXT DISPLAYEXT DISPLAY

BUFFER VIDEO SUB DISPLAYSUB DISPLAYSUB DISPLAYSUB DISPLAY VIDEO VIDEO VIDEO VIDEO A/D 8 Key sense Key sense Key sense Key sense Encoder Encoder Encoder Encoder PC PC PC PC Back Light Back LightBack Light Back Light PWM RADAR ECHO TRAIL CPU BUS Buffer Chart Card

Chart Card 16 P P P P----ININININ----PPP P F F F F----NetNetNet Net ARP10X ARP10X ARP10X ARP10X PLOTTER CHART SOUNDER SERIAL I/O SERIAL I/O GPS GPS GPS GPS SERIAL I/O NMEA NMEA NMEA NMEA TUNE_IND HEADING,EXT_TRIG

A/C SEA, A/C RAIN, GAIN

FLASH ROM 8Mbit*2 16 SW U87,88,89 U87,88,89 U87,88,89 U87,88,89 EEPROM 4kbit 1 U51U51U51U51 U69 U69U69 U69 U65 U65 U65 U65 U57 U57U57 U57 Y3 Y3Y3 Y3 Y2 Y2 Y2 Y2 03S9530 19S1007 03S9060-1 U21,25 U21,25 U21,25 U21,25 PLL

BEARING U93U93U93U93 U47,46,53,52 U47,46,53,52U47,46,53,52 U47,46,53,52 U59,58,63 U59,58,63U59,58,63 U59,58,63 U84,85 U84,85 U84,85 U84,85 U18,27 U18,27 U18,27 U18,27 U86 U86 U86 U86 U3,11 U3,11U3,11 U3,11 U19,30 U19,30 U19,30 U19,30 U23 U23 U23 U23 U8,14 U8,14U8,14 U8,14 U91 U91U91 U91 U9 U9 U9 U9 Y1 Y1Y1 Y1 U77 U77 U77 U77 U78,83,92 U78,83,92 U78,83,92 U78,83,92 PWM BUZZER BUZZER BUZZER BUZZER U1,BT1 U1,BT1U1,BT1 U1,BT1

U18: BASE CHART DATA U27:RADAR SIMULATION DATA PROGRAM U26,29 U26,29U26,29 U26,29,,,, J113 J112 J103 J102 J103 J103 J108 J106 J103 J113 PWM J111 J109 J110 J104 J105 J107 37,44 37,44 37,44 37,44 SCANNER UNIT SCANNER UNIT SCANNER UNIT SCANNER UNIT TUN TUNTUN

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2.3 SPU board

2.3.1 Auto Tuning Function

At not only installation but also the replacement of RF unit, magnetron, MIC, and SPU board, “tune initialization” must be carried out through the tuning setup menu. The receiver is tuned automatically for maximum echoes and tuning control voltages found are stored onto the EEPROM on the SPU board. Tune initialization is carried out in two steps. First, full search is performed using a long pulse to find a coarse tuning voltage (a). Then, short search is performed for all pulses. After initialization, the pulselength which was used before is selected.

In full search, tune control voltage (TUNE CONT) varies from about 1 V to 10 V and one that produces the maximum tune indicator voltage or coarse tuning voltage is memorized onto the EEPROM. about 10 V Tuning control voltage about 1 V (a) Full search Short search Tracking Time LP Tuning indicator voltage Max. about 3 V Min. about 1 V LP M S Pulselength EEPROM

backup Auto and_{Man. coarse} tuning pt. Max. Tuning Ind. voltage Max. Tuning Ind. voltage

Pulse length in use

Auto coarse tuning point Max. Tuning Ind. voltage 1 ₂ ₃

Figure 2.7 Tuning initialization process

In short search, tune control voltage changes from coarse tuning voltage plus 2.5 V to coarse tuning voltage minus 2.5 V. This search is made with long, middle, and short pulses to find the fine tuning voltage.

At daily use, the short search is made twice when the radar is set from ST-BY to TX and once when the plulselength is changed in auto tuning mode.

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2.3 SPU board

2-9

2.3.2 Manual tuning

When tune mode is changed from auto to manual, the coarse tuning voltage is selected. In manual tune mode, tuning voltage is indicated graphically under the tuning indicator. The minimum scale is 3 V and the maximum scale is 10 V.

2.3.3 Tuning Indication

The tuning indicator is adjusted so that the tuning indicator extends more than 80% of its full length on all ranges at best tuning. The extension on short pulse is shorter than long pulse and the indication becomes shorter when the magnetron degrades.

2.3.4 Video Level Adjustment (03P9288/19P1001)

The video input level to the linear video amplifier must be adjusted through the installation menu at not only installation but also the replacement of RF unit, magnetron, MIC, and SPU board. The following describes the outline of the adjustment mechanism on the SPU board, 19P1001. The SPU board, 03P9288 has the same circuit as 19P1001, but it has different parts numbers.

The following describes the outline of the adjustment. (These are carried out automatically.) 1. Main Bang suppression Level (MBS L) is set to 0.

2. EEPOT, U14 is set to minimum. (EEPOT initialization with "L" level of U14 #7)

3. EEPOT gets into step-up mode (U14 #2 is H.) to measure output video level at each step. The step is changed by pulses applied to U14 #1. The step where the output level is 2.2 V is memorized.

4. EEPOT gets into step-down mode (U14 #2 is L) to find and stores the step number where the output level is 2.2 V.

5. Averaging the step numbers found in steps 3 and 4 above, and saving onto depot. The stored value is not erased when power is turned off.

6. MBS L is reset to the value previously used.

Figure 2.8 Video level adjustment

It is not necessary to adjust video level for the video amplifier on the SPU boards, 03P9280 and 03P9286, because the board receives the output signal of logarithmic IF amplifier.

VIDEO (From IF AMP) EEPOT 32 step EEPOT (VIDEO output ) 2.2 V UP Down M1832-SME-12A ➁ ➂ ① ➃ ➄ Step: ➅

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2.3 SPU board

2.3.5 Echo Averaging (EAV)

Echo averaging circuit is designed for;

1) Discriminating small and weak targets such as flocks of birds, small ships, and fishing floats hidden in sea clutter, and

2) Displaying long-range targets stably.

Normally echoes from sea clutter and noises do not appear on the screen at the same position in successive scans. The circuit can provide the different echo levels, correlating echo data at each scan so that the level (intensity) of the echo which appears at random position decreases. For example, echoes from target and sea clutter are displayed on the screen in the same level with EAV off. But the echo from sea clutter is displayed in lower level than target echo with EAV LOW. The return from the sea clutter appears at the different position at every scans and EAV LOW sets the echo level to low at first and second hits. The target echo appears more than three successive scans at the same position, so it gets the maximum echo level. The EAV MED gives the maximum level to the target which has four consecutive hits or more.

The EAV HIGH prolongs the afterglow time of echoes.

Echo averaging is a useful function when it is used properly. However, target may be lost if this function is used with improper settings. The echo averaging requires heading and LL data.

OFF Echo level 7 Echo level 7 Echo level 7 Echo level 7 1 2 ⋅ ⋅ ⋅ ⋅ 1 2 ⋅ ⋅ ⋅ ⋅ No. of Scan No. of Scan No. of Scan No. of Scan FR-2115-SME-27C LOW MED HIGH 1 2 ⋅ ⋅ ⋅ ⋅ 1 2 ⋅ ⋅ ⋅ ⋅

NavNet Service Manual b 7.19.2002

MODEL 17XX/17XXC

MODEL 1833/1833C

MODEL 19XX/19XXC

GP-310B

*SME34940B00*

*SME34940B00*

*SME34940B00*

*SME34940B00*

SPU Board

S1 Setting on SPU Board

INV Board

MCN Board

INT Board

CONTENTS

Chapter 1. General

Chapter 2. Circuit Description

CONTENTS

Chapter 3. Location of Parts

Chapter 4. Adjustment

CONTENTS

Chapter 5. Maintenance

Supplement A. Network sounder, ETR-6/10N

CONTENTS

Supplement B. Radar Simulation Data

Supplement C. MODEL 1953C

Exploded View

Mechanical Parts List

Electrical Parts List

Chapter 1. General

1-1

1.1 General

1.2 About The NavNet

1-3

1-5

1.3 NavNet cables

1.4 Connection to hub

1.5 Notice on making NavNet network

1-7

M1833C

GD-1700C

HUB

M1833C

GD-1700C

GD-1700C

M1833C

GD-1900C

HUB

1-9

1.6 Network setup

Important!

1-11

1.7 ARP Function

1-13

1.8 Connection of ETR

1.9 Differences between NavNet products

1-15

1.10 Special keystrokes

1.11 Boards & Major Components

DISPLAY UNIT

1-17

SCANNER UNIT

GPS RECEIVER ANTENNA

NETWORK SOUNDER

1.12 Specifications

RADAR DISPLAY UNIT

1-19

RADAR

VIDEO PLOTTER

GPS RECEIVER ANTENNA

1-21

NETWORK SOUNDER

Input/Output Ports

1.13 Radar Antenna Compatibility

1-23

1.14 Detail of Input/Output Data and Signals

1.15 Sub-display Function

Chapter 2. Circuit Description

2-1

2.1 General

SME34940B00

SME34940B00

SME34940B00

SME34940B00