Drake R7A Desktop Shortwave receiver

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The R.L. Drake Company produced the R7A as a refinement of their popular Drake R7. Complete coverage is provided from 10 kHz to 30 MHz. Modes include SSB, CW, RTTY, SSTV and AM. Eight additional 500 kHz segments between 0 and 30 MHz may be programmed into the optional Aux 7 board. The R7A features an S-Meter, RF preamp, IF Notch, 4 position AGC (including an AGC off position), RIT and Pass Band Tuning. Frequency tuning is accomplished via sixty 500 kHz bands selected by a rotary band knob and Up/Down button selection. Three selectivity bandwidths are provided: 9, 2.3 and 0.5 kHz. The R7A exhibits especially strong sensitivity on the lower HF frequencies making it a favorite among Tropical band DXers.

Frequency range

RX-range
0.01-30 MHz
TX-range
-
HAM bands
-
Stability
± 1 kHz first hour, 150 Hz thereafter
Tuning steps
-
Filters
9, 2.3 and 0.5 kHz

Receiver

Modulations
AM   CW   SSB   RTTY  
Sensitivity
SSB/CW: < 0.2µV
AM: < 1.2µV
(10 dB S+ N/N, 1.8-30 MHz)
Selectivity
@ -6dB @ -60dB
9.0 kHz < 10.0 kHz
2.3 kHz < 4.1 kHz
.5 kHz < 1.5 kHz
Receiver system
Triple conversion superheterodyne
IF-frequencies
1st: 48.050 MHz
2nd: 5645 kHz
3rd: 50 kHz
Image rejection
> 80 dB
Audio output
2.5 Watts, 4 Ohms, < 10% distortion

Transmitter

Modulations
-
RF-Output
-

Connections

Antenna
Proprietary
Impedance
50 Ω

Electrical

Power requirements
Mains / 11-16V DC (13.8V DC nominal)
Current drain RX
3 A
TX
-

Physical

Dimensions (w×h×d)
346 × 116 × 330 mm (13.62 × 4.57 × 12.99 in)
Weight
8.34 kg (18.4 lbs)
Form factor
Base Station
Manufactured
Between 19xx and 19xx
MPN

Other features

Memories
-
Usage
Amateur / Ham radio operators
Features + options
-
Accessories
-

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