| GENERAL | 
| Type: | Amateur HF transceiver | 
| Frequency range: | TX: 10-160 m + WARC RX: 0.5-30 MHz
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| Tuning steps: | 1 / 10 / 100 Hz 1 / 2 / 5 / 9 / 10 / 500 KHz (Depending on programming)
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| Frequency stability: | Better than ±10 ppm @ -10 to +50°C (14 to 122°F) | 
| Mode: | AM / FM / SSB / CW / FSK | 
| Channels / memory management: | 90 regular and split 10 programmed scan
 RAM storage with lithium battery backup
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| Repeater shift / offset: | No dedicated. Use VFO A/B split instead | 
| Power supply: | 12-16 VDC (6-pin Molex) | 
| Current drain / power consumption: | RX: Max 2.5 A TX: Max 20.5 A
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| Antenna impedance / connector: | 50 ohm (20-150 ohm with AT-450) / SO-239 | 
| Dimensions (W*H*D): | 270*96*305 mm (10.6*3.8*12.1") | 
| Weight: | 6.3 Kg (13.9 lb), without ATU option | 
| Other features: | AIP. Dual NB. | 
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| RECEIVER SECTION | 
| Receiver system: | Triple conversion superheterodyne 1st IF: 73.05 MHz
 2nd IF: 8.83 MHz
 3rd IF: 455 KHz
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| Sensitivity: | AM (10 dB (S+N)/N) 0.5-1.62 MHz: 32 uV
 1.62-21.5 MHz: 2 uV
 21.5-30 MHz: 1.3 uV
 FM (12 dB SINAD)
 28-30 MHz: 0.25 uV
 SSB/CW/FSK (10 dB (S+N)/N)
 0.5-1.62 MHz: 4 uV
 1.62-21.5 MHz: 0.2 uV
 21.5-30 MHz: 0.13 uV
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| Selectivity: | AM:
5 KHz (-6 dB) 18 KHz (-50 dB)
 FM:
12 KHz (-6 dB)
 25 KHz (-50 dB)
 SSB/CW/FSK:
2.2 KHz (-6 dB)
 4.4 KHz (-60 dB)
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| Image rejection: | 70 dB | 
| AF output power / speaker: | 1.5 W at 10% distortion / 8 ohm | 
| External speaker connector: | 3.5 mm, 8 ohm | 
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| TRANSMITTER SECTION | 
| RF output power: | 
| AM: | 40 W |  | FM: | 100 W |  | SSB (PEP): | 100 W |  | CW/FSK: | 100 W |  | 
| Modulation system: | AM: Low level modulation FM: Reactance modulation
 SSB: Balanced modulation
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| Max FM deviation (Factory set): | FM normal: ±5 KHz FM narrow: ±2.5 KHz
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| Spurious emissions: | Better than -50 dB | 
| Microphone impedance / connector: | 600 ohm / 8-pin (Metal locking ring connector) | 
| Microphone input level: | ? mV | 
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| MISCELLANEOUS | 
| Manufactured: | Japan, 1991-199x (Discontinued) | 
| Additional info: |  | 
| Related documents: | User manual (68 MB) Service manual (34 MB)
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| Modifications and fixes: |  | 
| Reviews: |  | 
| Options / Accessories: | 
| AT-300 AT-450
 DSP-100
 HS-5
 HS-6
 IF-232C
 LF-30A
 MB-430
 MC-43S
 MC-60A
 MC-80
 MC-85
 PS-33
 PS-53
 SO-2
 SP-23
 TU-8
 VS-2
 YG-455C-1
 YG-455CN-1
 YK-88C-1
 YK-88CN-1
 YK-88S-1
 YK-88SN-1
 | External automatic antenna tuner unit Internal automatic antenna tuner unit, 10-80 m
 External Digital Signal Processor
 Light-weight open air-type headphones, 8 ohms
 Deluxe, very light-weight headphones
 RS-232C level converter
 Low pass filter
 Mobile mounting bracket
 Dynamic hand microphone with up/down buttons
 Desk microphone with preamplifier
 Omnidirectional electret desk microphone with preamplifier
 High-class unidirectional electret desk microphone with preamplifier and filter
 Matching power supply, 13.8 VDC, 20.5 A (25% duty cycle)
 Matching heavy duty power supply, 13.8 VDC, 20.5 A (1 hour continuous).
 TCXO unit. 20 MHz. ±0.5 ppm
 Matching external speaker
 Tone encoder unit (CTCSS/PL)
 Voice synthesizer
 500 Hz CW filter (455 KHz IF)
 230 Hz CW filter (455 KHz IF)
 500 Hz CW filter (8.83 MHz IF)
 270 Hz CW filter (8.83 MHz IF)
 2.4 KHz SSB filter (8.83 MHz IF)
 1.8 KHz SSB filter (8.83 MHz IF)
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