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Explains the power distribution within the radio.
Details the radio frequency circuit and signal path.
Describes the circuit for processing data signals.
Explains how voice signals are processed for transmission and reception.
Details the circuit for sidetone generation.
Explains CTCSS/DCS encoding/decoding.
Describes the modulation technique used.
Details how channels are selected.
Covers mainboard, power board, and modem interfaces.
Explains the energy-saving mode of operation.
Details CTCSS/DCS functionality for signal filtering.
Explains the transmission time limit feature.
Details programmable channel spacing options.
Describes RF signal strength detection.
Explains squelch level settings.
Covers audio output volume control.
Explains the sidetone feature.
Details over/under voltage protection.
Explains channel scanning modes.
Describes channel selection methods.
Provides physical dimensions of the radio.
Step-by-step guide to removing the top cover.
Guide to removing internal boards and shield.
Instructions for removing the main circuit board.
Lists all parts that can be repaired or replaced.
General