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General| Frequency Range | 144-148 MHz |
|---|---|
| Mode | FM |
| Power Supply | 13.8V DC |
| Channel Spacing | 15 kHz |
| Antenna Impedance | 50 ohms |
| Type | FM Transceiver |
| Sensitivity | 0.25 μV (12 dB SINAD) |
| RF Power Output | 25 Watts (High), 5 Watts (Low) |
Details general electrical and physical specifications of the transceiver.
Outlines key parameters for the transmitter and receiver sections.
Describes the functionality and components of the RX.TX unit.
Explains the transmitter circuitry and its components.
Explains the phase-locked loop circuit for frequency control.
Describes the functions and block diagram of the control circuit.
Shows component layout for the RX.TX unit (K, M Type).
Shows component layout for the RX.TX unit (T, W Type).
Illustrates component layout for the Final Unit.
Shows component layout for the PLL Unit.
Shows component layout for the Control Unit.
Shows component layout for the Display Unit.
Lists common components with part numbers and types.
Details integrated circuits, transistors, modules, and general accessories.
Shows how to disassemble the main unit and its sub-assemblies.
Illustrates the removal of specific components during disassembly.
Illustrates signal levels throughout the receiver section.
Shows signal flow and levels in the transmitter section.
Lists necessary test equipment and initial control settings.
Procedures for checking voltages and adjusting the PLL circuit.
Steps for receiver and transmitter performance tuning.
Verifying microprocessor functions and control operations.
Lists components and accessories used for packaging.
Provides the overall circuit diagram for T, W type models.
Graphs showing receiver sensitivity, blocking, and deviation.
Graphs for output power, current, and spurious responses.
Illustrates the overall system architecture and signal flow.
