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Last modified 2022-03-06

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Trio / Kenwood TS-660

A picture of Trio / Kenwood TS-660

SPECIFICATIONS

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)
Tuning steps: AM/SSB/CW: 10 / 100 Hz
FM: 100 Hz, 10 KHz
Frequency stability: Within 200 Hz during the first hour after 1 minute warmup
Within 30 Hz during any 30 minutes after warmup
Mode:AM / FM / SSB / CW
Channels / memory management: 5 regular
RAM storage. External DC required for memory retention.
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.




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




TRANSMITTER SECTION
RF output power: AM: Max 4 W
FM/SSB/CW: Max 10 W
Modulation system:
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




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)
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
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)
A rear picture of Kenwood TS-660