To fulfill GMDSS requirements, the SRG-1150DN must receive valid NMEA 0183 position data.
“No,” Yeong-ho replied, tapping the binder. “I listened to the sea’s new language.”
| Function | Wire Color | Technical Spec | | :--- | :--- | :--- | | | Red | 10-35V DC (Fuse @ 2A) | | Power – | Black | Ground (Ship’s DC negative) | | NMEA Out A (+) | Yellow | RS-422 (Differential) | | NMEA Out B (-) | Green | RS-422 (Differential) | | NMEA In A (+) | Blue | For DGPS beacon input (optional) | | NMEA In B (-) | White | For DGPS beacon input (optional) | | External Alarm | Brown | Switched ground (max 100mA) |
Grounding: This is the most critical step for MF/HF radios. Connect the main unit and the ATU to the ship’s common ground using a wide copper strap. A poor ground will result in "RF in the shack," causing equipment resets or electrical shocks.
If you have purchased a unit second-hand or misplaced the original paper documentation, finding the specific can be a challenge. This article serves as a comprehensive, long-form installation guide, walking you through the unboxing, physical mounting, complex wiring diagrams, and initial programming required to get your radio operational and compliant with maritime regulations.
Choose a location that allows for easy access to the front panel and microphone hook. Ensure there is adequate ventilation behind the unit. The rear heatsink should have at least 2 inches of clearance to dissipate heat during long transmissions.
Once powered, the SRG-1150DN will not work immediately. The manual details a 3-stage boot sequence.
That night, the captain took the manual to his bunk. He didn’t sleep. He read about differential GPS, SBAS correction, and antenna gain patterns. By dawn, he knew the SRG-1150DN better than his own charts.
Run the antenna cable separately from power cables. If they must cross, do so at a 90-degree angle to prevent interference.
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To fulfill GMDSS requirements, the SRG-1150DN must receive valid NMEA 0183 position data.
“No,” Yeong-ho replied, tapping the binder. “I listened to the sea’s new language.”
| Function | Wire Color | Technical Spec | | :--- | :--- | :--- | | | Red | 10-35V DC (Fuse @ 2A) | | Power – | Black | Ground (Ship’s DC negative) | | NMEA Out A (+) | Yellow | RS-422 (Differential) | | NMEA Out B (-) | Green | RS-422 (Differential) | | NMEA In A (+) | Blue | For DGPS beacon input (optional) | | NMEA In B (-) | White | For DGPS beacon input (optional) | | External Alarm | Brown | Switched ground (max 100mA) |
Grounding: This is the most critical step for MF/HF radios. Connect the main unit and the ATU to the ship’s common ground using a wide copper strap. A poor ground will result in "RF in the shack," causing equipment resets or electrical shocks.
If you have purchased a unit second-hand or misplaced the original paper documentation, finding the specific can be a challenge. This article serves as a comprehensive, long-form installation guide, walking you through the unboxing, physical mounting, complex wiring diagrams, and initial programming required to get your radio operational and compliant with maritime regulations.
Choose a location that allows for easy access to the front panel and microphone hook. Ensure there is adequate ventilation behind the unit. The rear heatsink should have at least 2 inches of clearance to dissipate heat during long transmissions.
Once powered, the SRG-1150DN will not work immediately. The manual details a 3-stage boot sequence.
That night, the captain took the manual to his bunk. He didn’t sleep. He read about differential GPS, SBAS correction, and antenna gain patterns. By dawn, he knew the SRG-1150DN better than his own charts.
Run the antenna cable separately from power cables. If they must cross, do so at a 90-degree angle to prevent interference.
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