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General| Frequency Range | 136-174 MHz |
|---|---|
| Operating Mode | FM |
| Power Supply Requirement | 13.6 V DC ±15% |
| IP Rating | IP54 |
| Operating Temperature Range | -30°C to +60°C |
Critical warnings for safe operation and maintenance of the transceiver, covering voltage, environment, and connections.
Details on frequency range, modes, operating environment, and physical characteristics.
Technical output power, emission, and suppression parameters for the transmitter.
Detailed specifications for receiver sensitivity, selectivity, spurious response, and AF output.
Step-by-step procedure for removing the Display-A Unit from the front panel.
Detailed explanation of the RF signal path through the receiver stages.
Description of audio signal path, modulation, and IF stages for transmission.
Details the TX signal path through IF stages, filters, and amplifiers.
Explains the generation of local oscillator signals for frequency synthesis.
Lists required equipment and outlines the general test setup for adjustments.
Details specific adjustment channels and their corresponding frequencies and modes.
Step-by-step instructions on how to access the transceiver's adjustment and factory menus.
Explains the factory menu structure and how to navigate and modify settings.
Procedures for adjusting receiver preset values, 1st mixer, and IF stages.
Steps for adjusting RF gain and S-meter settings for optimal performance.
Adjustments for TX power (CW, AM, DATA), PO meter, APC, power off voltage, and sensitivity.
Procedure for adjusting the CM coupler and TX power settings.
Steps for adjusting TX IF and TX IF gain for optimal transmission.
Procedure for adjusting the ALC current for proper transmission power control.
High-level overview of signal flow through receiver, transmitter, and synthesizer circuits.
Details data processing and signal flow within the DSP1-A and DSP2-A units.
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