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Class-A VHF DSC Ship Transceiver

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Class-A VHF DSC Ship Transceiver

Class-A VHF DSC Ship Transceiver

DSC (Digital Selective Calling) is a new feature brought to radio communications by the arrival of GMDSS (Global Maritime Distress Safety Systems). This feature is found on VHF and MF/HF GMDSS radio systems. A calling station may direct a call to a specific vessel by entering a MMSI (Maritime Mobile Service Identity) number and initiating a call. The receiving station decodes the number and if there is a match an alert is sounded indicating a communications request has been made. Other information may be embedded in the coded signal indicating nature of the call and operating frequency requested. If the coded signal is of a distress, it will sound an alarm on all receiving stations and indicate the position of the calling station. This allows for vessels in the area to respond and render aid.

Features:

1. Comply with IMO. A.803(19) resolution &ITU-R A.694(17) resolution

2. All US, International and Canadian, 10 weather channels

3. Automatically record incoming messages

1) Distress messages: 32

2) Other messages:32

3) Collision messages: 72

4. DSC system(DSC 70 channel watch)

5. Dual-watch and Tri-watch

6. Collision avoidance alarm display

7. Received signal strength indication

8. Priority scan

9. FM(88-108MHz) radio receiver

10. Navigation function

11. Extend speaker louder function

12. 64 waypoints stored

13. User-program channel group

14. Timing alarm clock

Technical specifications:

1 Overall specifications

Frequency range: Tx: 156.025-157.425MHz, Rx: 156.025-163.275MHz

Modulation method: FM (16K0G3E) DSC (16K0G2B)

Receiving system: superheterodyne double conversion

Frequency tolerance: 10ppm(-20+60)

Power supply voltage: DC13.8V (15%)

Antenna impendence: 50

Output impendence: (audio) 8

Input impendence: (microphone) 2K

Dimensions: W(220)H(110)D(109)mm

Weight: 1350g (2%)


2 Transmitter specifications

Output power: 25W/1W

Modulation limit: ܡ5KHz

Modulation: sensitivity: 17mV10mV

Audio distortion: 7%

Adjacent channel selectivity: 70dB

Spurious emissions: -53dB

Residual modulation: 40dB

Tx current consumption: high power6.0A, low power1.5A (DC13.8V)


3 Receiver specifications

Reference sensitivity: 0.25uV (12dB SINAD)

Squelch sensitivity: 0.15uV

Modulation receiver bandwidth: 25KHz

Deep squelch blocking threshold: 5KHz

Adjacent channel selectivity: 65dB

Intermodualtion rejection ratio: 58dB

Spurious response: 65dB

Audio output power: 2W (8)

Audio distortion: 7%

GPS output format: NMEA0183 (2.0)

Contact with us now

Our mail: manager@hiseamarine.com

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