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Last modified 2016-06-02

Kenwood QR-666

A picture of Kenwood QR-666

SPECIFICATIONS

GENERAL
Type:HF (VHF) receiver
Frequency range: 0.17-30 MHz in 6 bands (87.5-108 MHz option (76-90 MHz in Japan))
A: 0.17-0.41 MHz
B: 0.525-1.25 MHz
C: 1.25-3 MHz
D: 3-7.5 MHz
E: 7.5-18 MHz
F: 18-30 MHz
(Band spread on ham bands and major BC bands)
Tuning steps:Continuous
Mode:AM/SSB/CW (WFM option)
Channels/memory management:No
Power supply:Mains: 100 / 117 / 220 / 240 VAC
External DC: 12-15 VDC
Batteries: 8*R20/D
Current drain/power consumption:? mA
Antenna impedance/connector:50 ohms / SO-239
Hi-Z / Screw terminals
Built-in telescopic whip
Dimensions (W*H*D):362*163*322 mm (14.25*6.42*12.68"), without options
Weight:7.3 Kg (16.1 lbs), without options
Other features:




RECEIVER SECTION
Receiver system: Single conversion superheterodyne (Band A-E)
IF: 455 KHz (WFM option: 10.7 MHz)
Double conversion superheterodyne (Band F)
1st IF: 4.034 MHz
2nd IF: 455 KHz
Sensitivity:
Selectivity: AM narrow: 3 KHz (-6 dB), 15 KHz (-60 dB)
AM wide: 5 KHz (-6 dB), 15 KHz (-50 dB)
WFM (option): 150 KHz (-6 dB), 750 KHz (-50 dB)
Image rejection:50-70 dB depending on band
AF output power/speaker:1.5 W at 10% distortion / 8 ohms
External speaker connector:




MISCELLANEOUS
Manufactured:Japan, 197x-1975 (Discontinued)
Additional info:This radio was also marketed under the Trio brand. It was
also made available as a kit from "Kencraft". This is the
predecessor to the R-300
Related documents:User manual (4.3 MB)
Modifications:
Options/Accessories:
QR-6FM
QR-6MK
87.5-108 MHz WFM tuner unit (76-90 MHz in Japan)
500 KHz marker unit