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General| Brand | Standard |
|---|---|
| Model | C168 |
| Category | Transceiver |
| Language | English |
Explains how the Phase Locked Loop synthesizer generates frequencies.
Details the receiver's superheterodyne architecture and signal path.
Describes the transmitter's audio processing and RF output stages.
Details the unit's power distribution and regulation.
Explains the functions of the microprocessor's I/O ports.
Describes the functionality of optional CTN160 and CMU160/CMU161 units.
Provides safety precautions and steps for dismantling the transceiver.
Details the removal of the bottom cover.
Explains the procedure for removing the front case.
Outlines the steps to remove the display circuit board.
Describes the removal of the AF/RF board.
Guides the user on installing optional units like CTN160 and CMU161.
Provides instructions for installing the CTN160 tone squelch unit.
Details the installation process for the CMU161 memory unit.
Verifies the unit's current draw in various modes.
Confirms the stability of the 4V and 5V power supply lines.
Details adjustments for VCO voltage and local frequency.
Covers receiver sensitivity, SINAD, S/N, and S-meter calibration.
Explains transmitter output power and deviation adjustments.
Details the calibration of the tone squelch unit's deviation.
Provides detailed technical specifications for the transceiver.
Lists general operating parameters like frequency range and current consumption.
Specifies receiver performance metrics and sensitivity.
Details transmitter output power and modulation characteristics.
Lists specifications for the DTMF encoder and decoder.
Lists specifications for optional units.
Details specifications for the CTN160 option.
Provides schematic, overlay, and parts list for the CTN160 option.
Lists packing and parts for CMU160/CMU161 memory units.
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