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SRG-250/400

Product catalog summary

General Information
The SRG-250/400 is a console type MF/HF DSC radio equipment compliant with the Global Maritime Distress and Safety System (GMDSS). It supports a frequency range for transmission (TX) from 1.6MHz to 27.5MHz and reception (RX) from 1.6MHz to 27.9MHz. The equipment offers full ITU channels with a memory capacity of 2,000 channels and a frequency tolerance within 10Hz. It supports various modes of emission including J3E, H3E, F1B, J2B, and A1A, and operates in simplex and duplex communication modes. The operating temperature range is -15℃ to +55℃, and it can be powered by AC 110/220V 50/60Hz or DC 24V.

Transmitter Specifications
The SRG-250 model provides an output power of 250W, while the SRG-400 model offers 400W. It uses low power level modulation and supports a frequency band range within J3E, H3E 3KHz and F1B, J2B, A1A 0.5KHz. A 2-tone alarm is available at 1300Hz and 2100Hz.

Receiver Specifications
The receiver is a synthesized double super heterodyne type, supporting modes of emission such as J3E, H3E, R3E, FQB, J2B, F3C, and A1A. It has an image disturbance rate of more than 70dB and an input impedance of 50 ohms.

DSC Receiver
The DSC receiver operates at frequencies 2187.5, 4275, 6312, 8414.5, 12577, and 16804.5KHz, with modes of emission F1B and J2B. It maintains frequency stability within 10Hz and a modulation speed of 100BAND.

NBDP Specifications
The NBDP uses phase sequence AFSK modulation with an intermediate frequency of 1700Hz and a modulation speed of 100BAND (ARQ, FEC MODE). It has a frequency tolerance within 0.5Hz and uses a 7 units CORD 4B/3Y MARK signal.

Components and Configuration
The equipment set includes MF/HF radio equipment, control part, keyboard, antenna matcher, printer, connect cable, spare parts, instruction manual, and installation drawing. The printer is a heat-sensitive serial dot type with a character composition of 9x7 dots wide, capable of printing 40 characters in standard size and 80 in small size, with a paper width of 112mm.

Compliance and Certification
The SRG-250/400 complies with ISO 9002 / KS A 9002 standards, with certificate number QSC92073.

Catalog excerpts

MF/HF DSC RADIO EQUIPMENT Remote control by compact controller The existing communication type(C.W) possible Built-in self-test and easy maintenance owing to module Dual type, operable at indication panel and keyboard

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CONSOLE TYPE(250W/400W) SRG-250(250W) SRG-400(400W) MF/HF DSC RADIO EQUIPMENT SRG-250/400 Type MF/HF Radio Equipment is in compliance with the Global Maritime Distress and Safety System (GMDSS) developed by the International Maritime Organization (IMO) which is designed for automation, SSB, NBDP, DSC and MF/HF Radio Communication Equipment. SPECIFICATIONS ■ General information Frequency range : TX : 1.6MHz ~ 27.5MHz(100Hz STEP) RX : (10Hz STEP) TX/RX channel : Full ITU channels Memory channel : 2,000 channels Frequency tolerance : within 10Hz(within 0.3PPM) Modes of emission : J3E, H3E, F1B,...

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