Motorola Gm3688 Service Manual Top !exclusive! File

| Step | Alignment Item | Condition | Target | | :--- | :--- | :--- | :--- | | 1 | Reference Oscillator | Frequency counter at TP101 (internal) | ± 150 Hz @ 25°C | | 2 | Transmit Power – Low | 12.5W setting | ± 1W | | 3 | Transmit Power – High | 45W setting (UHF) | ± 2W | | 4 | TX Deviation – Low | 1 kHz tone @ 60% rated deviation | 2.5 kHz (12.5 kHz channel) | | 5 | RX Front End | Tune bandpass filters for max SINAD | < 0.35 µV for 12 dB SINAD |

The radio meets MIL-STD 810 C, D, and E standards for shock and vibration, and is rated IP54 for dust and water resistance. Accessing Support and Documentation motorola gm3688 service manual top

Options for 1–25W or higher-power 25–45W models depending on the band. | Step | Alignment Item | Condition |

By following the guidelines and resources provided in this article, technicians and users can ensure that their Motorola GM3688 devices operate reliably and efficiently, minimizing downtime and optimizing communication performance. Always discharge your body static before opening the

Always discharge your body static before opening the GM3688, and never attempt alignment without a dummy load and a watt meter. The manual gives you the map; your caution gives you the safe journey.