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General| Type | HF Transceiver |
|---|---|
| Modes | SSB, CW, AM |
| Power Supply | 13.8 V DC |
| Receiver Sensitivity | 0.5 µV |
| Selectivity | 500 Hz |
| IF Frequencies | 8.83 MHz |
Details operating frequency bands (3.5-29.7 MHz, WWV) and supported modes (SSB, CW).
Covers impedance, audio response, sensitivity, rejection, and stability parameters.
Lists power requirements, semiconductor counts, dimensions, weight, and operational notes.
Single conversion system with PLL ensures excellent performance and spurious rejection.
Features an easy-to-read digital display for accurate frequency indication.
Allows shifting of IF passband to eliminate adjacent channel interference.
Covers 3.5-29.7 MHz bands plus WWV for accurate frequency calibration.
Notes the transceiver's compact and light-weight design suitable for mobile use.
Highlights well-arranged controls for convenient and versatile operation.
Features an all solid-state design with a wide band final stage.
Allows installation of four fixed channels for quick frequency access.
Includes VOX, noise blanker, and a 25 kHz marker for enhanced operation.
Supports the optional YK-88C CW filter for improved CW reception.
Lists available optional accessories like power supply, VFO, and speaker.
Details the signal path and components for receiving signals from antenna to audio.
Details the signal path and components for transmitting signals from microphone to antenna.
Explains the single conversion PLL system for frequency control and synthesis.
Describes the PLL circuit's role in frequency synthesis and stability.
Details the Carrier Oscillator and its frequency variation with IF SHIFT.
Explains the VFO frequency counting system, display, and band switching.
Details the VFO oscillator, its physical characteristics, and calibration methods.
Describes the circuit protecting the transceiver from abnormal conditions like VSWR.
Details the components and functions of the filter unit, including ALC, AVR, and filters.
Details the final output stage, its temperature protection, and fan control mechanisms.
Lists capacitor types (Ceramic, Electrolytic), tolerances, and values.
Defines tolerance codes for capacitors and resistors.
Details specifications for Type I ceramic capacitors, including temperature coefficients.
Details specifications for Type II ceramic capacitors, including temperature coefficients.
Outlines troubleshooting steps for receiver system failures.
Details troubleshooting steps for transmitter system issues.
Details troubleshooting steps for counter system failures.
Provides troubleshooting steps for common system failures like power and S-meter.
Details troubleshooting steps for PLL system issues like no receive/transmit.
Shows signal levels for various stages in the receiver section.
Shows signal levels for various stages in the transmitter section.
Outlines adjustment procedures and classifications.
Lists essential test equipment for performing adjustments.
Details steps for case disassembly and control settings before adjustments.
Adjusts power supply voltage levels as per specifications.
Adjusts CAR output level and frequency for RX modes.
Adjusts IF SHIFT for no frequency change between RX and TX.
Checks VFO output across a range for proper operation.
Adjusts RIT control for variable range and sets RIT ON/OFF.
Sets oscillator levels and checks frequency accuracy.
Adjusts coils for TX BPF waveform and ripple ratio.
Adjusts coils for RX BPF ripple ratio using a tracking generator.
Adjusts IF AMP for maximum output and ripple ratio.
Adjusts IF trap for 80 dB attenuation of the 8.83 MHz signal.
Adjusts noise generator for NB waveform and S-meter reading.
Sets BAND switch and trimmer TC1 for zero beat with WWV/CAL.
Adjusts base current for RF full CW power and SSB output.
Adjusts carrier suppression for better than 40 dB down output.
Sets carrier point, adjusts TC1/TC2 for equal RF output reading.
Adjusts side tone level and CW frequency for proper operation.
Adjusts IC meter reading to specified levels for CW/SSB modes.
Adjusts ALC level to match RF output power.
Checks protection circuit operation and total current.
Adjusts total current for transmit operation.
Sets S-meter starting level and S1/S9 points.
Details electrical and physical specifications of the PS-30 power supply.
Provides general information including dimensions, weight, and features.
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