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Description of controls like VOL, SQL, TX OFFSET, MEMORY SELECTOR, MEMORY, etc.
Explanation of BUSY, ON AIR lamps, SCAN STOP, 5 UP, CALL buttons, and MIC jack.
Antenna, external speaker, backup switch, and power connections.
Switches on the cabinet bottom for power and mode selection.
Instructions for mounting and connecting the transceiver in a vehicle.
Setting up the transceiver for base station operation with a stand.
Guidance on selecting and connecting antennas for optimal performance.
Initial checks, VOL/SQL adjustment, and frequency selection via dial.
Storing, recalling frequencies, and using scanner modes.
Advanced operations using the keyboard microphone for programming and control.
Guidance on correcting input errors and common operational issues.
Setting up and using the transceiver for repeater communication.
Configuring and using the optional tone squelch for selective communication.
Explanation of the transmitter's signal generation, modulation, and amplification.
Explanation of the receiver's signal reception, mixing, and demodulation.
Description of the heterodyne oscillator and Phase Lock Loop synthesizer.
How the CPU controls the PLL and drives the digital display.
Important safety precautions to prevent damage to the transceiver.
Procedures for keeping the transceiver clean and in good working order.
Steps to verify transmitter output and receiver sensitivity.
Detailed steps for aligning the receiver RF amplifier and IF stages.
Procedures for aligning the transmitter's 10.7MHz, mixer, and output stages.
Steps for aligning the PLL oscillator, multiplier stages, and unlock circuit.
Pinout diagrams and connection information for transistors and integrated circuits.
Description of controls like VOL, SQL, TX OFFSET, MEMORY SELECTOR, MEMORY, etc.
Explanation of BUSY, ON AIR lamps, SCAN STOP, 5 UP, CALL buttons, and MIC jack.
Antenna, external speaker, backup switch, and power connections.
Switches on the cabinet bottom for power and mode selection.
Instructions for mounting and connecting the transceiver in a vehicle.
Setting up the transceiver for base station operation with a stand.
Guidance on selecting and connecting antennas for optimal performance.
Initial checks, VOL/SQL adjustment, and frequency selection via dial.
Storing, recalling frequencies, and using scanner modes.
Advanced operations using the keyboard microphone for programming and control.
Guidance on correcting input errors and common operational issues.
Setting up and using the transceiver for repeater communication.
Configuring and using the optional tone squelch for selective communication.
Explanation of the transmitter's signal generation, modulation, and amplification.
Explanation of the receiver's signal reception, mixing, and demodulation.
Description of the heterodyne oscillator and Phase Lock Loop synthesizer.
How the CPU controls the PLL and drives the digital display.
Important safety precautions to prevent damage to the transceiver.
Procedures for keeping the transceiver clean and in good working order.
Steps to verify transmitter output and receiver sensitivity.
Detailed steps for aligning the receiver RF amplifier and IF stages.
Procedures for aligning the transmitter's 10.7MHz, mixer, and output stages.
Steps for aligning the PLL oscillator, multiplier stages, and unlock circuit.
Pinout diagrams and connection information for transistors and integrated circuits.
General| Brand | Yaesu |
|---|---|
| Model | CPU-2500R |
| Category | Transceiver |
| Language | English |
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