| GENERAL |
| Type: | Amateur HF transceiver |
| Frequency range: |
10-160 m + WARC
1.8-2.0 MHz
3.5-4.0 MHz
7.0-7.3 MHz
10.0 MHz (WWV)
10.1-10.15 MHz
14.0-14.35 MHz
18.068-18.168 MHz
21.0-21.45 MHz
24.89-24.99 MHz
28.0-29.7 MHz
NB! The WARC bands were TX blocked from factory to prevent
accidental transmission, but were easily enabled by diode removal.
|
| Tuning steps: | Analog / continuous |
| Frequency stability: |
Within 1 KHz during the first hour after 1 minute warmup
Within 100 Hz during any 30 minute period after warmup
|
| Mode: | SSB / CW |
| Channels / memory management: | None |
| Repeater shift / offset: | No |
| Power supply: | Mains: 120 / 220 / 240 VAC |
| Current drain / power consumption: | RX: 32 W (Heaters off)
TX: Max 295 W |
| Antenna impedance / connector: | 50-75 ohm / SO-239 |
| Dimensions (W*H*D): | 333*133*333 mm (13.3*5.3*13.3") |
| Weight: | 13.5 Kg (29.8 lb) |
| Other features: |
VOX. 25 KHz calibrator. NB. IF-shift. VBT (Variable Bandwidth Tuning).
IF-output. Tone control.
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|
| RECEIVER SECTION |
| Receiver system: |
Double conversion superheterodyne
1st IF: 8.83 MHz
2nd IF: 455 KHz
|
| Sensitivity: | 0.25 uV (10 dB S+N/N) |
| Selectivity: |
SSB/CW Wide
2.4 KHz (-6 dB)
3.6 KHz (-60 dB)
CW Narrow: See optional filters below
|
| Image rejection: | 60 dB |
| AF output power / speaker: | 1.5 W at ?% distortion / 8 ohm |
| External speaker connector: | 3.5 mm, 8-16 ohm |
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| TRANSMITTER SECTION |
| RF output power: |
| Pwr |
|---|
| SSB (PEP): | ~100 W (220 W input) |
| CW (DC): | ~100 W (180 W input) |
|
| Modulation system: | |
| Max FM deviation (Factory set): | No FM |
| Spurious emissions: | Better than -60 dB |
| Microphone impedance / connector: | 500 ohm to 50 Kohm / 4-pin (Metal locking ring connector) |
| Microphone input level: | ? mV |
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|
| MISCELLANEOUS |
| Manufactured: | Japan, 1980-1988 (Discontinued) |
| Additional info: |
Tube hybrid: One 12BY7A driver and two 6146B finals
New price 1981 in the UK: £639.52
|
| Related documents: |
User manual (21 MB)
Service manual (13 MB)
6146B power tube
|
| Modifications and fixes: | |
| Reviews: | 73 Magazine: May 1981, page 66 |
| Options / Accessories: |
AT-230
HC-10
HS-4
HS-5
KB-1
MC-30S
MC-35S
MC-50
PC-1
SM-220
SP-230
VFO-230
VFO-240
YG-455C
YG-455CN
YK-88C
YK-88CN
|
Manual antenna tuner
Digital world clock
Communications headphones, 8 ohm
Deluxe headphone set, 8 ohms
Deluxe flywheel VFO tuning knob
Noise cancelling hand microphone, 500 ohm
Noise cancelling hand microphone, 50 Kohm
Desk microphone, 500 ohms/50 Kohm switchable
Phone patch with VU-meter
Station monitor
External speaker with audio filters
Remote digital VFO, 20 Hz step and 5 memories
Remote VFO
Narrow CW filter, 500 Hz (-6 dB), IF: 455 KHz
Narrow CW filter, 250 Hz (-6 dB), IF: 455 KHz
Narrow CW filter, 500 Hz (-6 dB), IF: 8.83 MHz
Narrow CW filter, 270 Hz (-6 dB), IF: 8.83 MHz
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