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Last modified 2025-03-15

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Heathkit GR-740

A picture of Heathkit GR-740

SPECIFICATIONS

GENERAL
Type:VHF/UHF receiver/scanner
Frequency range: 30-50 / 118-136 / 144-174 / 421-512 MHz
Tuning steps:5 KHz
Frequency stability:? ppm
Mode:AM / FM
Channels / memory management: 20+20 regular @ 5 or 15 channels per second
1 priority
1 search pair
RAM storage with two LR6 / AA battery backup
Power supply:Mains: 120 VAC (Male 2-pin jack)
or 13.8 VDC (Male spade connector)
Current drain / power consumption:Max 20 W @ 120 VAC
Max 655 mA @ 13.8 VDC
Antenna impedance / connector:50-75 ohm / DIN41585 (Motorola) or telescopic whip
Dimensions (W*H*D):270*89*203 mm (10.62*3.5*8")
Weight:2.27 Kg (5 lb)
Other features:




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.8 MHz
2nd IF: 400 KHz
Sensitivity: AM (10 dB S/N)
118-136 MHz: 1 uV
FM (12 dB SINAD)
30-50 MHz: 0.4 uV
144-174 MHz: 0.4 uV
421-512 MHz: 0.8 uV
Squelch sensitivity:
Noise figure:
Selectivity:50 KHz (-55 dB)
Image rejection:
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:TS "Minijack" (3.5 mm), 8 ohm




MISCELLANEOUS
Manufactured:Puerto Rico (By Electra), 1984-1984 (Discontinued)
Additional info: This is basically a re-badged Bearcat BC-20/20 in
a semi-kit form.
Related documents:
Modifications and fixes:
Reviews:QST: January 1985, page 36
Options / Accessories:
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A rear picture of Heathkit GR-740