| GENERAL |
| Type: | Amateur HF/VHF transceiver |
| Frequency range: |
6-15 m in four bands:
15 m: 21.000-21.450 MHz
12 m: 24.500-25.000 MHz
10 m: 28.000-29.700 MHz
6 m: 50.000-53.900 MHz
(TX on 12 m was disabled from factory, but was easily restored by user)
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| Tuning steps: |
AM/SSB/CW: 10 / 100 Hz
FM: 100 Hz, 10 KHz
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| Frequency stability: |
Within ±200 Hz during the first hour after 1 minute warmup
Within ±30 Hz during any 30 minutes after warmup
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| Mode: | AM / FM / SSB / CW |
| Channels / memory management: |
5 regular
RAM storage. External DC required for memory retention.
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| Repeater shift / offset: | No dedicated. Use VFO A/B split |
| Power supply: | 12-16 VDC (2-pin connector) |
| Current drain / power consumption: | RX: Max 1 A
TX: Max 4 A |
| Antenna impedance / connector: | 50 ohm / Two SO-239 |
| Dimensions (W*H*D): | 241*94*236 mm (9.49*3.7*9.29") |
| Weight: | 4.9 Kg (10.8 lb) |
| Other features: | NB. IF shift. |
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| RECEIVER SECTION |
| Receiver system: |
Single conversion superheterodyne (AM/SSB/CW)
IF: 8.83 MHz
Double conversion superheterodyne (FM)
1st IF: 8.83 MHz
2nd IF: 455 KHz
|
| Sensitivity: |
AM: 1 uV (10 dB S/N)
FM: 0.4 uV (12 dB SINAD)
SSB/CW: 0.25 uV (10 dB S/N)
|
| Selectivity: |
Standard
AM/SSB/CW: 2.4 KHz (-6 dB), 4.2 KHz (-60 dB)
FM: 15 KHz (-6 dB), 32 KHz (-60 dB)
With optional filters
AM: 6 KHz (-6 dB), 11 KHz (-60 dB), with YK-88A
CW: 500 Hz (-6 dB), 1.5 KHz (-60 dB), with YK-88C
CW: 270 Hz (-6 dB), 1.1 KHz (-60 dB), with YK-88CN
|
| Image rejection: | 60 dB |
| AF output power / speaker: | 1.5 W at ?% distortion / ? ohm |
| External speaker connector: | 3.5 mm, 8-16 ohm |
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| TRANSMITTER SECTION |
| RF output power: |
| AM: | Max 4 W |
| FM: | Max 10 W |
| SSB (PEP): | Max 10 W |
| CW (DC): | Max 10 W |
|
| Modulation system: | |
| Max FM deviation (Factory set): | ±5 KHz |
| Spurious emissions: | 10/15 m: Better than -40 dB
6 m: Better than -60 dB |
| Microphone impedance / connector: | 500 ohm to 50 Kohm / 8-pin (Metal locking ring connector) |
| Microphone input level: | ? mV |
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| MISCELLANEOUS |
| Manufactured: | Japan, 1981-198x (Discontinued) |
| Additional info: | New price 1982 in the US: $699.95 (MSRP) |
| Related documents: |
User manual (27 MB)
Service manual (4 MB)
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| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
BC-1
HA-3
HC-10
HS-4
HS-5
MB-100
PS-20
SP-120
TL-120
VOX-4
YK-88A
YK-88C
YK-88CN
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Memory backup power supply
3-band vertical antenna (15/10/6 m)
Ham clock
Headphones
Deluxe headphones
Mobile mount
Regulated power supply. 13.8 VDC, 4 A (4.5 A peak)
External speaker
HF linear amplifier
External VOX unit
AM crystal filter. 6 KHz (-6 dB)
CW narrow filter. 500 Hz (-6 dB)
CW narrow filter. 270 Hz (-6 dB)
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