Samyung Srg 1150 Service Manual 19 Page

Samyung SRG-1150/1250/2150 series is a 150W/250W MF/HF Radio Transceiver used primarily for maritime communications and GMDSS (Global Maritime Distress and Safety System) requirements.

Confirm that the system regularly updates position data from the external GPS stream. Annual Shore-Based Maintenance (SBM) Routines

For technicians and service engineers, accessing the is crucial for installation, maintenance, troubleshooting, and repairing these complex units. samyung srg 1150 service manual 19

A: No. The SRG-1150 service manual covers only the transceiver. The AT-1300 has a separate service manual (current revision: AT-1300 Rev 8).

Inject a low-level signal (approx. -90 dBm at the operating frequency) directly into the RX board input. If the signal is processed normally, inspect the preselector band-pass filters and associated switching diodes. Scenario C: No RF Power Output (Transmission Fails) Samyung SRG-1150/1250/2150 series is a 150W/250W MF/HF Radio

: Combines an MF/HF transmitter-receiver, DSC (Digital Selective Calling) watch receiver, and distress alarm telephone into a single unit.

If current draw spikes to 15-25 Amps, the PA is working; the issue is likely a failure to route power out (faulty LPF relay or ATU control failure). Inject a low-level signal (approx

Features built-in thermal sensors and a directional coupler that senses high Voltage Standing Wave Ratio (VSWR). If the antenna matching unit fails or the antenna is damaged, the PA circuit automatically throttles back or shuts down to prevent transistor destruction. LPF (Low Pass Filter) & Relay Board