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Last modified 2024-09-18

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Heathkit HR-1680

A picture of Heathkit HR-1680

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range: 10-80 m in 6 bands
80 m:   3.5-4.0 MHz
40 m:   7.0-7.5 MHz
20 m:   14.0-14.5 MHz
15 m:   21.0-21.5 MHz
10 m A:   28.0-28.5 MHz
10 m B:   28.5-29.0 MHz
Tuning steps:Analog / continuous
Frequency stability:Less than 100 Hz per hour after 30 minutes warmup
Mode:SSB / CW
Channels / memory management: None
Power supply:Mains: 120 or 240 VAC (Fixed power cord)
or 11.5-15 VDC (Male 2-pin jack)
Current drain / power consumption:Less than 750 mA @ 13.8 VDC
Antenna impedance / connector:50 ohm / Phono (RCA)
Dimensions (W*H*D):324*171*305 mm (12.76*6.73*12.01")
Weight:4.42 Kg (9.75 lb)
Other features:100 KHz calibrator.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 8.395-8.895 MHz
2nd IF: 3.395 MHz
Sensitivity:0.5 uV (10 dB S+N/N)
Selectivity: Wide: 2.1 KHz (-6 dB), 7 KHz (-60 dB)
Narrow: 250 Hz (-6 dB), 2.5 KHz (-60 dB)
Image rejection:50 dB
AF output power / speaker:800 mW at 10% distortion / External only
External speaker connector:Phono (RCA)




MISCELLANEOUS
Manufactured:USA, 1976-1982 (Discontinued)
Additional info:New price, november 1977 in Sweden: SEK 1565:- (Kit)
Related documents:User manual (4.6 MB)
Modifications and fixes:CW filter, BFO, NB and more (1.3 MB)
Reviews:QST: January 1977, page 35
Options / Accessories:
HS-1661 Matching speaker
A rear picture of Heathkit HR-1680