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General| Type | Marine VHF Transceiver |
|---|---|
| Waterproof Rating | IPX7 |
| Mode | FM |
| Antenna Impedance | 50 Ω |
| Receiver Sensitivity | 0.25μV (12dB SINAD) |
| Operating Temperature | -15°C to +55°C |
| Modulation | FM |
| Output Power | 25 W |
| Channels | USA, INT, CAN channels |
| Power Supply | 13.8 V DC |
| Current Drain | 1.5 A (at 1 W) |
| Spurious Emissions | < -70 dBc |
| Frequency Stability | ±10 ppm |
| Adjacent Channel Selectivity | 70 dB |
| Spurious Response | 70 dB |
| Intermodulation Rejection | > 70 dB |
| Adjacent Channel Power | > 70 dB |
Critical safety warnings and precautions for operating the transceiver.
Identifies major components on the main unit board.
Identifies major components on the front unit.
Steps for removing the transceiver's outer casing.
Steps for detaching the main internal unit.
Details the signal path for receiving.
Details the signal path for transmitting.
Explains the Phase Locked Loop system.
Covers ATIS and DSC signal processing.
Describes the logic and CPU functions.
Details the power supply voltage lines.
Lists CPU and I/O expander port assignments.
Lists required test equipment and connections.
Procedures for adjusting PLL lock voltage and frequency.
Procedures for output power and deviation adjustment.
Procedures for sensitivity and squelch adjustment.
Component list for the main unit.
Component list for the logic board.
Component list for the VR board.
Component list for the SQL board.
Component list for the front unit.
List of chassis components.
Component list for the microphone.
Lists mechanical components for the chassis.
Lists mechanical components for the logic board.
Lists mechanical components for the VR board.
Lists mechanical components for the SQL board.
Lists mechanical components for the main unit.
Lists mechanical accessories.
Lists mechanical components for the front unit.
Lists mechanical components for the microphone.
Diagrams and symbols for transistors and FETs.
Diagrams and symbols for diodes.
Top and bottom views of the VR board.
Top and bottom views of the SQL board.
Top and bottom views of the HM-132 board.
Top and bottom views of the Logic-E board.
Top and bottom views of the Main-E unit board.
Shows voltage distribution on the logic board.
Shows voltage distribution on the main unit.
Shows voltage distribution on the HM-132.
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