Samyung ENC SRG-150DN User manual

INSTRUCTION
MANUAL
MF/HF SSB
RADIO
EQUIPMENT
SRG-150DN/SRG-250DN

1
Warning
RF Exposure Warning :
※The radiated output power of this device is below the FCC
radio frequency exposure limits. Nevertheless, the device
should be used in such a manner that the potential for
human contact during normal operation is minimized. In
order to avoid the possibility of exceeding the FCC radio
frequency exposure limit, human proximity to the
antenna should not be less than 142 cm during normal
operation.
Information to user
※The user’s manual or instruction manual for an intentional
or unintentional radiator shall caution the user that
changes or modifications not expressly approved by the
party responsible for compliance could void the user's
authority to operate the equipment. In cases where the
manual is provided only in a form other than paper, such
as on a computer disk or over the Internet, the
information required by this section may be included in
the manual in that alternative form, provided the user can
reasonably be expected to have the capability to access
information in that form.

2
CONTENTS
CHAPTER 1. HOW TO OPERATE THE MAIN UNIT ..................................................................... 5
1-1 SET MMSI(MARITIME MOBILE SERVICE IDENTITY) ID .....................................................................5
1-2 SSB MODE...........................................................................................................................................................5
1-3 DSC MODE..........................................................................................................................................................6
1-4 DISTRESS TRANSMISSION...........................................................................................................................8
1-5 HOW TO USE SN-100 NBDP TERMINAL ...............................................................................................8
CHAPTER 2. OVERVIEW ................................................................................................................... 10
2-1 CHARACTERISTIC .......................................................................................................................................... 10
2-2 EQUIPMENT COMPONENTS.................................................................................................................... 12
CHAPTER 3. REGULATION............................................................................................................... 14
3-1 GENERAL SPECIFICATIONS....................................................................................................................... 14
3-2 TRANSMITTER SPECIFICATIONS......................................................................................................................... 15
3-3 RECEIVER SPECIFICATIONS ...................................................................................................................... 16
3-4 DSC (DIGITAL SELECTIVE CALL) W/K RECEIVER............................................................................... 17
3-5 MF/HF CONTROL.......................................................................................................................................... 17
3-6 DIGITAL SELECTIVE CALL (DSC).............................................................................................................. 18
3-7 NARROW BAND DIRECT PRINTING (NBDP) ..................................................................................... 18
3-8 PRINTER (HP-283)......................................................................................................................................... 19
3-9 PRINTER (JP-3750)........................................................................................................................................ 20
CHAPTER 4........................................................................오류! 책갈피가 정의되어 있지 않습니다.
CHAPTER 5 FRONT PANEL ............................................................................................................. 21
4-1 EXPLANATION OF KEY, KNOB AND LAMP OF THE MAIN UNIT .............................................. 21
4-2 LIQUID CRYSTAL DISPLAY......................................................................................................................... 23
4-3 SCREEN LCD.................................................................................................................................................... 25
CHAPTER6. SSB WIRELESS TELEPHONE (TEL) MODE ................................................................ 27
5-1 SSB MODE........................................................................................................................................................ 27
5-2 MENU SCREEN OF SSB............................................................................................................................... 27
5-3 ADDITIONAL FUNCTIONS (ITU CHANNEL, RCV, AM, DSC MODE, ETC.) ............................. 34
CHAPTER7. DIGITAL SELECTIVE CALLING(DSC) .......................................................................... 37
6-1 OVERVIEW........................................................................................................................................................ 37

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6-2 DSC MESSAGE................................................................................................................................................ 37
6-3 DSC DISTRESS SCREEN COMPOSITION.............................................................................................. 38
CHAPTER 8. DSC DISTRESS OPERATION ..................................................................................... 41
8-1 DISTRESS ALERT (DISATER ALERT) HOW TO SEND............................................................................. 41
7-2 RECEPTION OF DISTRESS ALERT (DISATER WARNING)............................................................... 47
7-3 THE WAY TO SEND ADISTRESS RELAY INSTEAD OF SHIP IN ADISASTER ........................ 50
7-4 DISTRESS CANCEL SENDING ACANCEL MESSAGE....................................................................... 53
7-5 AN EXAMPLE OF PROCESSING MULTIPLE DISASTER MESSAGES........................................... 55
CHAPTER9. COMMON DSC MESSAGE CALLING AND RECEIVING.......................................... 59
8-1 INDIVIDUAL CALL ......................................................................................................................................... 59
8-2 GROUP CALL................................................................................................................................................... 64
8-3 TEST CALL......................................................................................................................................................... 67
8-4 POSITION CALL.............................................................................................................................................. 69
8-5 AREA CALL ....................................................................................................................................................... 72
8-6 DSC TEST .......................................................................................................................................................... 74
CHAPTER 10. PRINTER..................................................................................................................... 76
9-1 HP-283 PRINTER............................................................................................................................................ 76
9-2 JP-3750 PRINTER........................................................................................................................................... 78
CHAPTER11. HOW TO USE SD-250(ALARM BOX) ..................................................................... 79
10-1 DISTRESS TRANSMITTING.................................................................................................................... 79
10-2 IN CASE OF RECEIVING DISTRESS SIGNAL ................................................................................... 79
CHAPTER 11. NBDP TERMINAL ..................................................................................................... 80
11-1 DESCRIPTION............................................................................................................................................. 80
11-2 INTIAL SCREEN OF NBDP TERMINAL.............................................................................................. 81
11-3 SETTING TX/RX FREQUENCY.................................................................................................................... 82
11-4 [ARQ] MODE............................................................................................................................................... 84
11-5 [FEC] MODE ................................................................................................................................................ 87
11-6 COMMUNICATION OPPOSITE SIDE COUNTRY (COASTAL COUNTRY OR VESSEL
COUNTRY) STATION EDIT AND FREQUENCY REGISTRATION................................................................ 92
11-7 STATION PRINT (OPPOSITE SIDE COUNTRY AND FREQUENCY PRINT OUTPUT)....... 93
11-8 REGISTRATION OF MACRO COMMAND....................................................................................... 94
11-9 EDITOR MODE........................................................................................................................................... 94

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11-10 INITIAL SETTING OF SYSTEM SET................................................................................................. 95
11-11 NBDP TEST.............................................................................................................................................. 99
11-12 LCD OFF..................................................................................................................................................100
CHAPTER 12. NBDP TERMINAL CIRCUIT ................................................................................... 101
12-1 OVERVIEW.................................................................................................................................................101
12-2 CONNECTION BOARD (T-130).........................................................................................................101
12-3 NBDP RECEIVING UNIT (T-132) .......................................................................................................101
12-4 LOCAL SYNTHESIZE BOARD (T-133)..............................................................................................101
12-5 POWER CIRCUIT (T-025) .....................................................................................................................101
12-6 FUNCTION DIAGRAM OF REAR SIDE............................................................................................102
CHAPTER 1. TROUBLE SHOOTING ............................................................................................ 103
13-1 OVERVIEW.........................................................................................................................................................103
13-2 MEASUREING INTRUMENT .......................................................................................................................103
13-3 MAINTENANCE OF SRG-150DN/250DN .............................................................................................103
13-4 NBDP SN-100 ..................................................................................................................................................105
13-5 SIMPLE MODULATION OF MODULATOR ...........................................................................................106
13-6CAUTION ...........................................................................................................................................................106

5
CHAPTER 1. HOW TO OPERATE THE MAIN
UNIT
1-1 SET MMSI(MARITIME MOBILE SERVICE
IDENTITY) ID
Press POWER key to turn on the power of the main unit and it will be changed to
the following setting mode from the initial screen, as below.
➜
< Initial screen >
Press button on the front panel to return to the main screen.
1-1-1 INPUT SELF(USER)-ID
If you press 4 times, then it will be expressed in ➜
➜[1. DSC SETUP] ➜➜[1.MMSI] ➜In
you can input the desired ID number.
Example: ID 111100000 Input: if you press 4 times, you change it to
and ➜[1.DSC SETUP] ➜➜
[1.MMSI] ➜➜Press numeric keys in order
.
Press repeatedly to exit to the MAIN screen.
(MMSID: 111100000 is displayed in the upper right corner of the MAIN screen.)
1-2 SSB MODE
1-2-1 CHANNEL SELECTION
1) ➜➜mode selection.

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2) Press the key repeatedly to select CH ➜Input the desired channel with numeric
buttons and then press .
1-2-2 FREQUENCY SELECTION
1) Press on the front panel of keyboard repeatedly and select [TX]. Input the
desired frequency with numeric buttons and press .
2) Press on the front panel of keyboard repeatedly and select [RX]. Input the
desired frequency with numeric buttons and press .
[Ref.] If frequency is out of range then it cannot be input with ‘beep’alarm will be
sound off. The TELEX frequency interlocked with the DSC by the Radio Regulation
Appendix 15 cannot be input.
1-2-3 TRANSMISSION (TX) & RECEPTION (RX)
1) Transmission (TX)
Input the transmission / reception (TX/RX) frequency, which will be used for voice
communication.
➜switch to the mode ➜Input the transmission /
reception (TX/RX) frequency to use it for voice communication➜Press the microphone
switch (PTT) and communicate.
[Ref.] Press the button put on [TX] and if you press , you can change the
frequency with the dial from 10Hz to 10MHz by selecting it with the buttons
, .
[Ref.] In case, if there is no ATU tuning data value for the first channel then ATU tuning
for the emergency TX frequency (2,182 / 2,1875 / 4,2075 / 6,312 / 8,4145 / 12,477 /
16,8045 kHz) runs automatically.
2) Reception (RX)
It is easy to hear by turning down the GAIN and turning up the VOLUME on noiseless
condition of [VOLUME] and [GAIN].
[Ref.] Press the button , put on [RX] and if you press , you can change the
frequency with the dial from 10Hz to 10MHz by selecting it with the buttons
, .
1-3 DSC MODE
1-3-1 CHANNEL SELECTION

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➜After setting the mode to ➜Rotate the channel
dial to select the desired channel.
1-3-2 FREQUENCY INPUT
➜➜After setting the mode ➜Rotate the channel
dial to move to the channel, in which there is no input of frequency ➜Repeatedly press
on the front panel of keyboard and select [TX]. ➜Press KEY to input
desired frequency.
[Ref.] If frequency is out of range, frequency cannot be input with ‘beep’alarm sound.
[Ref.] Press the button , put on [TX] and if you press , you can change the
frequency with the dial from 10Hz to 10MHz by selecting it with the buttons ,
.
[Ref.] In CH1~ CH32 there is no frequency change and it applies from CH33 ~ to CH40.
1-3-3 CALL
➜➜TO : --------- ➜➜DIRECT INPUT ➜
➜Input the other party's MMSI ➜➜Frequency selection ➜
➜MODE selection ➜➜COMM Frequency selection ➜
Press .
1-3-4 DSC MESSAGE RX AUTO REPLY
➜➜mode selection ➜
➜[1. DSC SETUP] ➜➜[4.AUTO ACK SET] ➜
1. AUTO ACK TEST: ON , 2. AUTO ACK POLLING : ON ,
3. AUTO POSITION: OFF , 4 . AUTO ACK INDIVIDUAL: ON

8
1-4 DISTRESS TRANSMISSION
1-4-1 TRANSMIT A SIGNAL (DISTRESS) BY
EMERGENCY TRANSMISSION KEY
1) Press the KEY and hold on for 5 seconds to transmit a signal.
2) In case, if there is no response, transmit again from the 1st channel to the 6th channel
after approximately 4 minutes 30 seconds (4 minutes ~ 5 minutes).
3) Press to stop the transmission.
1-5 HOW TO USE SN-100 NBDP TERMINAL
1-5-1 CHANNEL SELECTION
1) Change [CH] on the screen ➜Select the desired channel with [Numeric buttons] ➜
Press [Enter] button.
2) Press [F6] ➜Select the desired channel with [Numeric buttons] ➜Press [Enter] button.
1-5-2 FREQUENCY SELECTION
1) Transmission (TX)
Press [F7] ➜Input the desired communication frequency with [Numeric buttons] ➜
Press [Enter] button.
2) Reception (RX)
Press [F8] ➜Input the desired communication frequency with [Numeric buttons] ➜
Press the [Enter] button.
1-5-3 ARQ MODE

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Press [F2] and if you select [ARQ], you can be connected by ARQ MODE to the other
station with the current setting channel.
1-5-4 FEC MODE
Press [F2] and if you select [FEC], you can be connected by FEC MODE to the other station
with the current setting channel.

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CHAPTER 2. OVERVIEW
GMDSS(Global Maritime Distress and Safety System) is a world-wide maritime distress and
safety communication system, which specifically applied to maritime and land
communications, integrates communication technologies, such as digital communications,
wireless telephone, wireless telex and satellite communications with emergency and safety
communications, navigation alerts and weather alerts, as well as navigation management of
ships, and make it use in general wireless communication and navigation security
communication.
SRG-150DN / 250DN (MF / HF transmit·receiving wireless telephone and telegraph
equipment) and SN-100 (NBDP terminal) are composed of MF/ HF transceiver, digital
selective calling device (DSC), DSC W/K Receiver and narrow band direct printing device
(NBDP) and used for digitized information communication suitable for automatic
processing in distress, safety and general situations.
SN-100 is used when connected to the transceiver (SRG-150DN / 250DN) and outputs sub-
carrier signal through the transceiver (SRG-150DN / 250DN) to transmit (Narrow band of
direct printing) NBDP DATA, directly demodulates the received signal (RX) from the
antenna and DISPLAYs the information through the LCD on the front side of the terminal.
Frequency range:
Transmission: 1.605MHz ~ 27.499MHz
Reception: 500KHz ~ 29.99990MHz
Type of radio wave and resulting output
SRG-150DN J3E : 150W(HIGH)/100W(MID)/50W(LOW)
SRG-250DN J3E : 250W(HIGH)/100W(MID)/50W(LOW)
SRG-150DN/250DN F1B : 100W(HIGH,MID)/75W(LOW)
2-1 CHARACTERISTIC
2-1-1 AVAILABLE RANGE
SRG-150DN/250DN has a built in MF/HF Transceiver, DSC W/K Receiver, digital selective
calling device (DSC), Alarm (warning) automatic telephone and can be used by itself. It is

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available to use NBDP function by connecting SN-100 terminal. However, it is not possible
to only use NBDP terminal.
2-1-2 TOTAL CONTROL METHOD
SRG-150DN/250DN contains important circuits as an integrated circuit in its device and
constructs a rational system by comprehensively controlling the related functions of each
device.
Furthermore, all operations for narrow band direct printing are possible by connecting
NBDP terminal (SN-100) to SRG-150DN / 250DN.
2-1-3 OPERATION
All operation, such as communication, centralized control, monitoring, are available by
installing SRG-150DN/250DN, NBDP terminal (SN-100) and PRINTER in a convenient place.
In emergency, transmission of an alarm signal (DSC) to the ONE-TOUCH and automatic
alarm reception from another ship are possible.
Furthermore, using NBDP terminal (SN-100) it is easy to create and transmit/receive TELEX
and view with wide front display window.
2-1-4 EQUIPMENT CONFIGURATION
Because SRG-150DN/ 250DN consists of one device, it does not require a large space for
operation. SN-100 terminal is also a single device, therefore can be installed and used only
by connecting cable with SRG-150DN/250DN.
2-1-5 RELIABILITY
DDS (Direct Digital Synthesize) method has been newly adopted to improve sound quality,
reliability, reception sensitivity and selectivity.
2-1-6 STRUCTURE CONSTRUCTION
It is made of a thick aluminum body to endure harsh marine environment.
2-1-7 EXTERNAL SHAPE
SRG-150DN / 250DN uses a large LCD (display device), that channel and frequency,
transmission and reception status of device and etc. can be seen at a glance, and is
designed to increase the size of the key for convenient operation. SN-100 NBDP terminal
has wide screen, thin, colorful LCD and convenient keyboard.

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2-2 EQUIPMENT COMPONENTS
This unit consists of SRG-150DN / 250DN and SN-100 (NBDP terminal equipment). Each
device is composed of functional PCB and divided into basic components and optional
components.
<< SRG-150DN basic components >>
NO
NAME
TYPE
QUANTITY
NOTES
1.
MF/HF-DSC transmitter/
receiver
SRG-150DN
1SET
SRG-150DN
assembly
(1)
POWER BOARD
P103330
1
(2)
MAIN BOARD
P103300
1
(3)
DISPLAY BOARD
P103340
1
(4)
TX PA
P103380(150W)
1
(5)
TX FILTER
P103310(150W)
1
(6)
W/K RX
P103662
1
2.
Automatic Antenna
Tuner
SAT-100
1
(Installation
material included)
3.
HAND MIC
SM-1150
1
4.
Accessory
SSB-A-C
SRG-2050D-PC
1SET
5.
User,
Installation Manual
SRG-150DN/250DN(ENG)
1
<< SRG-250DN basic components >>
NO
NAME
TYPE
QUANTITY
NOTES
1.
MF/HF-DSC
transmitter/receiver
SRG-250DN
1SET
SRG-250DN
assembly
(1)
POWER BOARD
P103330
1
(2)
MAIN BOARD
P103300
1
(3)
DISPLAY BOARD
P103340
1
(4)
TX PA
P103380(250W)
1

13
(5)
TX FILTER
P103312(250W)
1
(6)
W/K RX
P103662
1
2.
Automatic Antenna
Tuner
SAT-100
1
(Installation
material included)
3.
HAND MIC
SM-1150
1
4.
Accessory
SSB-A-C
SRG-2050D-PC
1SET
5.
User,
Installation Manual
SRG-150DN/250DN(ENG)
1
<< SRG-150DN/250DN optional components >>
NO
NAME
TYPE
QUANTITY
NOTES
1.
Emergency Lamp
EMG-Light
1
2.
External Speaker
SS-10W4
1
3.
POWER SUPPLY
SP-1250ADC
1
4.
NBDP terminal
SN-100
1
Domestic (including
installation
materials)
(1)
Connection Board
T-130
1
(2)
NBDP receiver
T-132
1
(3)
NBDP PLL
T-133
1
(4)
Power supply
T-025
1
(5)
CPU Board
P006920
1
P103160
1
5.
KEY BOARD
SP8695
1
6.
MF/HF Distress Box
SD-250
1
SCN-16-5P included
7.
Printer
HP-083
1
8.
WHIP ANT(TX)
SAN-308
1
8M
9.
WHIP ANT(RX)
SAN-30R
1
6M

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CHAPTER 3. REGULATION
3-1 GENERAL SPECIFICATIONS
※This equipment has been tested in accordance with the IMO guideline for GMDSS.
1) Power supply
DC 24V(BAT) : -10% ~ +30% , Power: 1200VA
Hazardous voltage indication
Insulation resistance measurement: must be higher than 1MΩ.
2) Consumption current: DC24V±15%
2.5A when receiving, 30A (MAX) when transmitting
3) Compass safety distance
- Follow compass safety distance to prevent interference with your magnetic compass.
- Standard Compass: 2.4 m
- Steering Compass: 1.5m
4) Frequency selection
①ITU CHANNEL (Maritime Mobile service) 271EA.
②USER CHANNEL 299EA, set call and frequency directly with KEYBOARD.
③DSC channels: 2187.5, 4207.5, 6312, 8414.5, 12577, 16804.5kHz (FIB) always receive
SCAN.
④13 DSC channels (editable)
5) Frequency switching time
Between CHANNEL - within 5 seconds, between BAND - within 15 seconds
(Including ANTENNA MATCHING time)
6) Ambient Condition
Temperature -15 ° C to + 55 ° C
Humidity 95%, + 55 ℃
Vibration X axis: Maximum acceleration 7 [㎨] from 5 Hz ~ to 100 Hz
Test for 120 minutes at resonance frequency 24.8 Hz, 24.8 Hz
Y axis: Maximum acceleration 7 [㎨] from 5 Hz ~ to 100 Hz
Test for 120 minutes at resonance frequency 60.9Hz, 60.7Hz
Z axis: Maximum acceleration 7 [㎨] from 5 Hz ~ to 100 Hz
Test for 120 minutes at resonance frequency 79.1 Hz, 91.2 Hz

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7) Dimensions (mm)
SRG-150DN / 250DN: 324 (W) X 170 (H) X 347 (D)
SN-100: 300 (W) X 255 (H) X 127 (D)
8) Weight
SRG-150DN / 250DN about 8.1Kg
SN-100 about 5Kg
SAT-100 DIR 3.4Kg
3-2 TRANSMITTER SPECIFICATIONS
1) Type of emission: J3E, FIB
2) Communication method: SIMPLEX and SEMI DUPLEX method
3) Frequency range: 1.605MHz ~ 27.499MHz, 10Hz STEP
However, TELEX frequency, which is linked with DSC, is not input.
4) Continuous operation: When using 200A battery
Operating for over 8hrs with transmitting for 1 minute, stand by for 4 minutes.
5) Antenna power:
Power reduction: 3 steps SRG-150DN (J3E 50/100/150, F1B 75/100 / 100W)
SRG-250DN (J3E 50/100/250, F1B 75/100 / 150W)
6) Stability of frequency: less than ± 10Hz, SYNTHESIZER method (within 0.3ppm)
7) Number of channels: SSB x 299, ITU x 271, DSC x 19
8) Modulation method: Low power stage balanced modulation method
9) Occupied frequency bandwidth: J3E ... Within 3kHz,
F1B ... Within 0.5kHz
10) Carrier attenuation ratio: more than 40dB (for J3E)
11) Spurious attenuation ratio: In J3E
1.5 - 4.5kHz more than 31dB
4.5 - 7.5kHz more than 38dB
More than 7.5kHz more than 43dB
In F1B
More than 138Hz 15dB
More than 276Hz 31dB
More than 500Hz 43dB
12) Comprehensive frequency characteristics: deviation at 350 - 2,700Hz is within 6dB

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13) Total Distortion and Noise: more than 20dB
14) Output Impedance: 50ohm
15) Low frequency input: + 10dB / -35dB, IMPEDANCE 600 ohm
3-3 RECEIVER SPECIFICATIONS
1) Type of emission: J3E (USB), F1B (FSK)
2) Reception method: UP CONVERSION Double super-heterodyne method using phase
LOCK type DIGITAL frequency SYNTHESIZER.
First intermediate frequency: 64.455 MHz, second intermediate frequency: 455 kHz
3) Frequency range: 500kHz ~ 29.99990MHz, 10Hz STEP
However, the TELEX frequency, which is interlocked with the DSC, is not input.
4) Voice output: Maximum output more than 5.6W
5) Receiving sensitivity: SSB is less than 3 ㎶at the frequency of 500kHz ~ 29.99990MHz.
SSB (S + N + D) / (N + D) = 20 dB, BAND width: 3 kHz,
Output: in case of 100mW DSC, NBDP character error rate at a receiver input voltage 1
㎶is less than 1 x10-2
Reception MODE: FSK, BAND Width: 0.3 kHz
6) 1 signal selectivity:
①3kHz FILTER (for SSB) details of characteristics
6dB lowered passband bandwidth: 2.4kHz to 2.8kHz
26dB attenuation bandwidth: within ± 1.7kHz
46dB attenuation bandwidth: within ± 1.9kHz
66dB attenuation bandwidth: within ± 2.1kHz
②0.3kHz FILTER (for DSC, NBDP) details of characteristics
6dB lowered passband bandwidth: 270Hz to 300Hz
Attenuation at ± 380Hz is more than 30dB
Attenuation at ± 550 Hz is more than 60 dB
7) Clarity: ± 200Hz
8) Comprehensive Distortion and Noise: When the input voltage of 30 ㎶is applied, the
ratio of low frequency output 1000Hz and its unnecessary component is more than
20dB.
9) AGC characteristics: change of law frequency output for 100mV from 3 ㎶antenna
input is less than 10dB.
10) Frequency stability: within ± 10Hz

17
11) Image interference ratio: more than 70dB
12) Intermediate frequency interference ratio: more than 80dB
13) SPURIOUS RESPONSE: more than 70dB
In case of DSC, NBDP when a wanted signal of 10 ㎶and a 31.6 ㎷unwanted
signal(excluding the range within 750Hz of the wanted signal) whose range of IF it's
three times that of the wanted signal, the symbol error rate is less than 1 x 10-2.
14) Selectivity suppression: With a wanted signal of 10 ㎶and an unwanted signal that is
effect than 3kHz from the wanted signal, an unwanted signal input voltage of 10m
suppresses the wanted scanning output to 3db.In case of DSC, NBDP with a wanted
signal of 10 ㎶and 1 ㎷unwanted signal 500hz from the wanted signal, the character
error rate is less than 1 x 10-2.
15) Secondary emission: The power emitted from antenna terminal is less than 4000 ㎼.
16) Nominal input load: 50 ohm unbalanced
3-4 DSC (DIGITAL SELECTIVE CALL) W/K RECEIVER
1) Type of emission: F1B.
2) Frequency: 2187.5, 4207.5, 6312, 8414.5, 12577, 16804.5 kHz
3) Frequency stability: within ± 10Hz
4) Scanning reception of above frequencies is continued up to 2sec for each frequency
and stop only when detects a 100 baud dot pattern.
5) Receiving sensitivity: character error rate is less than 1 x 10-2 at receiver input voltage
1㎶.
6) 1 signal selectivity: 6dB Bandwidth 270 ~ 300Hz
30dB Bandwidth within ± 380Hz
60dB Bandwidth within ± 550Hz
7) Nominal input load: 50 ohm unbalanced
8) DSC Receiving character display: Maximum 256 characters (numbers and letters)
9) SPURIOUS RESPONSE:
With a wanted signal of 10 ㎶and 31.6 ㎷zero modulated interference signal which
excludes the range within 750hz of the wanted signal, the character error rate is less than
1 x 10-2.
10) The power emitted from antenna terminal is less than 4000 ㎼.
3-5 MF/HF CONTROL

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1) Control items: MF / HF Transceiver, DSC, WATCH-KEEPING Receiver, selection of
transmitting and receiving frequencies
2) DISTRESS: 2187.5, 4207.5, 6312, 8414.5, 12577, 16804.5kHz sending alarm signal
3) Others: DISPLAY unit, remote interface, NBDP terminal, ATU BOX, ALARM BOX,
HAND MIC, DIMMER, etc.
4) MAIN PROCESSOR: ADSTARD16MF512, ATMEGA64L
5) EEPROM: 24LC256
6) Display: 5 inch color LCD (800 * 480)
7) INTERFACE
RS-232 INTERFACE: 1 CHANNEL equipment (NBDP)
RS-232 INTERFACE: 1 CHANNEL equipment (GPS)
3-6 DIGITAL SELECTIVE CALL (DSC)
1) PROTOCOL: CCIR Recommendations 493-3 and 541-2
2) EMISSION: F1B 100BAUD
3) Modulator: Output frequency 1700Hz ± 85Hz, Output LEVEL Max. + 10dBm
(600 ohm unbalanced / balanced)
4) Demodulator: Input frequency 1700Hz ± 85Hz, Input LEVEL -20dBm ~ + 5dBm
(600 ohm unbalanced / balanced)
5) Processor: 10-unit ERROR detecting code shown in Code CCIR Recommendation 493-3
•CLOCK transmitting method: correction
•CLOCK frequency: 14,000kHz
•CLOCK stability: within ± 5 x 10-6.
6) DSC Memory function
•Distress reception: 50
•Ordinary reception: 50
•Transmitting messages: 100
3-7 NARROW BAND DIRECT PRINTING (NBDP)
1) PROTOCOL: CCIR Recommendations 625, 476-4, 490, 491, 492-3 and CCIR
Recommendations F130
2) Calling MODE: Individual and group call, 5-digit and 9-digit SELECT CALL number
3) Operating MODE: ARQ (Automatic repeat request)

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CFEC (Collective Forward ERROR Correction)
SFEC (Selective Forward ERROR Correction)
4) Status Display: POWER ON, STAND-BY, CALLED, CALLING, FREE, SIGNAL, ARQ, CFEC,
SFEC, SEND, RECEIVER, PHASING, REPHASING, REPEAT, ERR, etc.
5) Code: 7 units CODE 4B / 3Y (B: 1785 Hz, Y: 1615 Hz)
6) Memory capacity: 16M
7) SYSTEM PARAMETER: PROGRAMING OPERATOR DATA TO FLASH DISK AND keeping as
BACK UP.
8) Center frequency: 1700Hz
9) Frequency SHIFT Width: ±85Hz
10) Modulation speed: 100BAUD (ARQ, FEC MODE)
11) Modulation: phase continuous AFSK
12) Frequency deviation: within 0.5Hz
13) Compass safety distance
- Follow compass safety distance to prevent interference with your magnetic compass.
- Standard Compass: 2.4 m
- Steering Compass: 1.5m
14) Demodulation input: 0dBm, 600ohm unbalanced / balanced
15) Modulation output: 0dBm, 600ohm unbalanced / balanced
3-8 PRINTER (HP-283)
1) Printer specifications
⁃Printing method: Direct Thermal
⁃Printing speed (best): 200mm/sec
⁃Resolution (DPI): 180 DPI (7dot/mm)
⁃Printing area (Number of dots a line): 512 Dots/Line
⁃Interval between letters: 1 DOT
⁃External standard: 143mm(W) ×194mm(D) ×136mm(H)
⁃Body weight: about 0.58Kg
⁃Working voltage: DC +24V ±10%
2) Operating condition
⁃Temperature range: -25℃～40℃
⁃Humidity range: 40％～90％RH
3) Thermal paper specifications