Samyung SUR-350 — a radio station designed specifically for operation on riverboats as a primary and operational station. It supports simplex and duplex communication channels used on inland waterways and is fully compliant with the following standards: Russian River Register. This next-generation device combines a 300-337 MHz receiver and transmitter, keyboard and display controls, and an interface for connecting external equipment in a compact package.
The radio station is equipped with large, high-contrast LCD display with a wide viewing angle that provides a clear display of all the necessary information. The display has an adjustable two-level backlight, allowing you to use the device even in low-light conditions. A built-in adjustable noise canceller ensures signal clarity and communication stability.
The equipment meets the requirements of the standards IMO and CCIR. The compact housing with integrated transceiver makes it easy to install in any convenient location. Backlit LCD display not only is it easy to operate due to the wide viewing angle, but it also displays instructions for the operator, which makes it easier to work. The brightness of the screen backlight is easily adjusted for convenient use both during the day and at night.
The radio station supports several scanning modes, including TAG SCAN (scan the specified channels), ALL SCAN (scan all channels) and DUAL WATCH (scanning two channels simultaneously), which makes it particularly convenient for monitoring the required frequencies. The waterproof design increases the reliability of the device in difficult operating conditions. The CH5 button provides quick access to the emergency channel, and the high-and low-power switching functions extend the functionality of the device.
Advantages:
- Large LCD display с регулируемой подсветкой и широким углом обзора для удобной работы днем и ночью.
- Встроенный шумоподавитель, обеспечивающий чистоту сигнала.
- Режимы сканирования: TAG SCAN, ALL SCAN, DUAL WATCH для мониторинга каналов.
- Water resistant, компактные размеры и удобный доступ к функциям.
- Кнопка CH5 для быстрого переключения на канал безопасности.
Technical specifications:
| Parameter | Meaning |
|---|---|
| Frequency range (transmission) | 300-337 MHz |
| Frequency range (reception) | 300-337 MHz |
| Number of channels | 27 |
| Type of modulation | FM |
| Frequency grid step | 50 kHz |
| Operating mode | Simplex, half-duplex |
| Antenna impedance | 50 ohms |
| Audio output resistance | 4 Ohms |
| Frequency stability | ±5 kHz (-25°C to +55°C) |
| Supply voltage | 13.6 V DC ±10% |
| Current consumption | TX: up to 5.5 A, RX: up to 1.5 A |
| Operating temperature range | -25°C to +55°C |
| Overall dimensions | 85 × 172 × 170 mm |
| Weight | 1.1 kg |
Table of river channel frequencies:
| Channel Number | Registration number | Connection type | Transmission Frequency (MHz) | Receive Frequency (MHz) |
|---|---|---|---|---|
| 02 | 2 | Simplex | 300,050 | 300,050 |
| 03 | 3 | Simplex | 300,100 | 300,100 |
| 04 | 4 | Simplex | 300,150 | 300,150 |
| 05 | 5 | Simplex | 300,200 | 300,200 |
| 06 | 6 | Duplex | 300,250 | 336,250 |
| 07 | 7 | Duplex | 300,300 | 336,300 |
| 08 | 8 | Duplex | 300,350 | 336,350 |
| 09 | 9 | Duplex | 300,400 | 336,400 |
| 10 | 10 | Duplex | 300,450 | 336,450 |
| 11 | 11 | Duplex | 300,500 | 336,500 |
| 22 | 22 | Simplex | 336,050 | 336,050 |
| 23 | 23 | Simplex | 336,100 | 336,100 |
| 24 | 24 | Simplex | 336,150 | 336,150 |
| 25 | 25 | Simplex | 336,200 | 336,200 |
| 41 | 41 | Simplex | 300,025 | 300,025 |
| 42 | 42 | Simplex | 300,075 | 300,075 |
| 43 | 43 | Simplex | 300,125 | 300,125 |
| 46 | 46 | Duplex | 300,275 | 336,275 |
| 47 | 47 | Duplex | 300,325 | 336,325 |
| 48 | 48 | Duplex | 300,375 | 336,375 |
| 49 | 49 | Duplex | 300,425 | 336,425 |
| 50 | 50 | Duplex\ | 300,475 | 336,475 |
| 61 | 61 | Simplex | 336,025 | 336,025 |
| 62 | 62 | Simplex | 336,075 | 336,075 |
| 63 | 63 | Simplex | 336,125 | 336,125 |
| 64 | 64 | Simplex | 336,175 | 336,175 |
| 65 | 65 | Simplex | 336,225 | 336,225 |
Main Features:
- Compliance with standards IMO and CCIR.
- Integrated transceiver for easy installation.
- Different scanning modes: TAG SCAN, ALL SCAN, DUAL WATCH.
- Waterproof construction for reliable operation in all conditions.
- Quick access to the emergency channel.
- Adjustable display backlight for convenient use at night.
Perfect for navigation system, communications and emergency management, Samyung SUR-350 will be a reliable helper on riverboats.

