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Manual intended for experienced technicians, containing service information.
Guidelines for ordering parts, including part identification numbers.
Recommended safety precautions for handling RF equipment.
Information on servicing the radio, referring to diagrams and procedures.
Explains different operating modes: User, PC, and Self-Programming.
Explains icons displayed on the LCD screen and their meanings.
Guide on how to set the radio using self-programming features.
Step-by-step instructions for entering and operating self-programming mode.
Troubleshooting steps for issues related to no power.
Solutions for battery power issues, including short life after charging.
Steps to resolve communication issues within a group.
How to handle unwanted signals or interference on the channel.
General specifications like frequency range, operating voltage, and dimensions.
Technical specifications for the transmitter section.
Technical specifications for the receiver section.
Details the frequency configuration of the transceiver.
Explains the RF amplifier and first-stage mixer in the receiver.
Describes the IF amplifier and FM signal processing.
Explains the AF amplifier and audio signal processing.
Details the squelch and mute control circuits.
Overview of the transmitting system, including microphone amplifier.
Explains the modulation circuit and signal path.
Describes the drive and final amplifier circuits for power output.
Details the circuit that switches between transmission and reception.
Explains automatic power control and transmission output circuits.
Details the Phase-Locked Loop circuit for frequency synthesis.
Describes the circuit that detects PLL unlock status.
Explains digital control circuits including keys and encoders.
Describes the circuit for detecting battery voltage.
Explains the circuit controlling the lamp and LCD display.
Details the battery saving mode functionality.
Explains the sub-tone (CTCSS/DCS) signal processing.
General| Frequency Range | 400-470MHz |
|---|---|
| Power Output | 5W/1W |
| Operating Temperature | -20°C to +60°C |
| Type | Handheld |
| Battery | 1200mAh Li-ion battery |
| Operating Voltage | 7.4V |
| Antenna Impedance | 50 Ohm |
| Channel Capacity | 16 channels |
| Modulation | 16K0F3E / 11K0F3E |
