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General| Frequency Range (Receive) | 0.1-30 MHz |
|---|---|
| Antenna Impedance | 50 ohms |
| Power Supply | 13.8 V DC ±15% |
| IF Rejection | More than 80 dB |
| Mode | SSB, CW, AM, FM |
| Receiver Type | Superheterodyne |
| Current Drain (Transmit) | 20 A |
| Image Rejection | More than 70 dB |
Details the triple and double conversion frequencies used in receive and transmit modes.
Explains the PLL circuit, DDS unit, and generation of local oscillator signals LO1, LO2, LO3.
Describes the 20-MHz crystal oscillator and its role in frequency control.
Details the generation of the 64.22MHz signal for L02 using VC02 and frequency division.
Describes the CAR unit with DDS ICs, generating local oscillators, CAR, and subcarrier signals.
Explains the triple-conversion superheterodyne receiver configuration and signal path.
Details the selection of pre-amplifiers based on frequency and AIP status.
Explains the noise blanker circuit and its pulse period identification for minimizing malfunctions.
Discusses the installation of optional 8.83-MHz and 455-kHz IF filters and their specifications.
Details the audio signal path from microphone to the IF unit and modulation processes.
Explains how forward wave voltage is detected and controlled for output power settings.
Describes the optional DRU-2 voice memory operation for recording, recall, and transmission.
Introduces the AT unit and its function in automatic antenna tuning.
Explains the control signals and timing for standby control handled by the IF unit.
Describes TXB and CKY generation timing during CW keying for semi break-in operation.
Introduces the digital control circuit, its multi-chip configuration, and control functions.
Describes the magnetic and contact-type rotary encoders and their pulse processing.
Details the multiplexed address/data signals, ALE signal, and chip select signals.
Describes the 8-channel A/D converter and its function in processing analog signals.
Explains AT control via variable capacitor data, motor controls, and PWM duty cycle for tuning.
Describes RF BPF signal buffering and BCD-to-decimal decoding in the RF unit.
Details the control of the electronic keyer microprocessor via serial commands.
Details the port pin functions and remarks for the CPU (IC6) and Extended I/O (IC1).
Explains how to turn the full-Morse function ON/OFF by pressing the VOICE key during power-on.
Describes entering the adjustment mode by pressing F.LOCK key and its termination.
Details how to enter the extended functions menu using SCAN and TX-M.CH keys.
Lists and describes the function and operation of components within the RF Unit.
Lists and describes the function and operation of components in the Final Unit.
Lists and describes the function and operation of components in the Digital Unit.
Lists and describes the function and operation of components within the IF Unit.
Lists and describes the function and operation of components in the PLL Unit.
Lists and describes the function and operation of components in the CAR Unit.
Lists and describes the function and operation of components in the Filter Unit.
Lists and describes the function and operation of components in the AT Unit.
Details the block diagram and port functions of the MB89363B semiconductor.
Details the terminal connection and function of the CXD10950 I/O Port.
Details the block diagram, terminal function, channel select, and range select of the MB4052 A/D Converter.
Details the terminal connection and block diagram of the µPD78C10G CPU.
Details the block diagram, terminal connection, operation mode, and access time of the RAM.
Details the terminal connection and function of the Encoder Gate Array.
Lists part numbers and descriptions for various metallic cabinet components.
Lists part numbers and descriptions for various panel components.
Lists part numbers and descriptions for components of the Switch Unit A.
Lists part numbers and descriptions for components of the Switch Unit B.
Lists part numbers and descriptions for components of the RF Unit.
Lists part numbers and descriptions for components of the Digital Unit.
Lists part numbers and descriptions for components of the Digital Unit.
Lists part numbers and descriptions for components of the Digital Unit.
Lists part numbers and descriptions for components of the IF Unit.
Lists part numbers and descriptions for components of the IF Unit.
Lists part numbers and descriptions for components of the TRX Unit.
Lists part numbers and descriptions for components of the AGC Unit.
Lists part numbers and descriptions for components of the SM AMP Unit.
Lists part numbers and descriptions for components of the MIC SW Unit.
Lists part numbers and descriptions for components of the MIC AMP Unit.
Lists part numbers and descriptions for components of the DELAY Unit.
Lists part numbers and descriptions for components of the BK IN Unit.
Lists part numbers and descriptions for components of the BK SW Unit.
Lists part numbers and descriptions for components of the PROC AMP Unit.
Lists part numbers and descriptions for components of the AIP SW Unit.
Lists part numbers and descriptions for components of the NB2 Unit.
Lists part numbers and descriptions for components of the LCD ASSY.
Lists part numbers and descriptions for components of the Filter Unit.
Lists part numbers and descriptions for components of the AT Unit.
Lists part numbers and descriptions for components of the PLL Unit.
Lists part numbers and descriptions for components of the CAR Unit.
Lists part numbers and descriptions for components of the Filter Unit.
Lists part numbers and descriptions for components of the Filter Unit.
Lists part numbers and descriptions for components of the AT Unit.
Lists part numbers and descriptions for components of the AT Unit.
Lists necessary test equipment for performing adjustments, including meters and generators.
Details the step-by-step adjustments for the PLL section, including frequency and level checks.
Outlines adjustments for receiver and transmitter sections, including display checks and filter alignment.
Details adjustments for Band Pass Filters (BPF) related to ENT key presses and display settings.
Describes IF amplifier adjustments for CW mode, including signal levels and test instrument connections.
Explains how to adjust MIX balance for optimal performance, considering spurious signals.
Describes RF and IF amplifier adjustments, including AF output reading and filter settings.
Details IF OUT adjustments, including SSG settings and output level checks.
Outlines S-meter adjustments for different AGC and RF gain settings, ensuring correct readings.
Describes FM gain adjustments based on ENT key, display frequency, and mode settings.
Details Noise Blanker (NB) adjustments, including SSG settings and noise generator output.
Explains how to check voice output by pressing the front panel key and hearing the displayed frequency.
Details S/N checks, including AF VR and SSG settings, noting AIP behavior.
Describes SSB squelch adjustments by setting the point squelch closes and turning controls.
Explains base current adjustments for minimum current and increasing it for TX output.
Details ALC adjustment by checking output and turning CAR VR for MAX.
Describes ALC frequency characteristic adjustments by turning VR to MIN level and checking output.
Details power meter adjustments for setting output power to 90W.
Details MIN power adjustments for 10W setting.
Details carrier point adjustments by setting wave forms cross with LSB and adjusting controls.
Details spurious adjustments for RF and IF frequencies, ensuring minimal unwanted signals.
Explains SWR protection adjustments for performing quick adjustments.
Details SWR meter adjustments by setting the SWR to 3 and checking dot lights.
Describes FM MAX DEV adjustments for frequency and deviation settings.
Details monitor level adjustments for AF output and display settings.
Describes side tone adjustments for CW, AF VR, and key settings.
Lists terminal functions for connectors CN1 through CN11 in the RF Unit.
Lists terminal functions for connectors CN15 through CN23, including various controls and signals.
Lists terminal functions for connectors CN15 through CN26, covering various unit controls and signals.
Lists terminal functions for connectors CN3 through CN8, detailing various unit controls and signals.
Lists terminal functions for connectors CN9 through CN14, covering various unit controls and signals.
Lists terminal functions for connectors CN15 through CN26, covering various controls and signals.
Lists terminal functions for connectors CN3 through CN8, detailing various controls and signals.
Lists terminal functions for connectors CN9 through CN14, covering various controls and signals.
Lists terminal functions for connectors CN14 through CN23, detailing various unit controls and signals.
Lists terminal functions for connectors CN14 through CN23, detailing various unit controls and signals.
Lists terminal functions for connectors CN15 through CN26, covering various controls and signals.
Lists terminal functions for connectors CN1 through CN7, detailing various unit controls and signals.
