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Desktop Shortwave receiver
Desktop Shortwave receiver
SDR HF/VHF receiver

General

HAM bands ? ? ?
Freq. stability ? ? ?
Tuning steps ? Continuous ?

Receiver

RX-range 0.55-30 MHz 15,5-26,6 / 23,5-41 / 37,5-65 / 64-115 meter
110-175 / 170-300 / 290 - 570 meter optional
0.02-170 MHz
Modulations AM   CW   SSB   AM   AM   AM-sync   FM   W-FM   CW   SSB   DSB   RTTY  
Sensitivity ? ? 0.39 µV (CW, BW 500 Hz, 10 dB (S+N)/N)
Selectivity ? ? >100 dB, Software defined
Filters ? ? ?
Receiver system Single conversion TRF with regeneration SDR / direct conversion
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output internal speaker ? ?

Transmitter

TX-range - - -
Modulations - - -
RF-output ? ? 5 W max

Connections

Antenna - - SO-239 + SMA
Impedance 50 Ω 50Ω 50Ω
Other - - -

Electrical

Power req. 105-125 V AC 6 + 45 + 135 + 180 V 13.8 V DC
Current RX ? ? ?
TX - - -

Physical

Manufactured Between 1963 and 1966 in USA Between 1929 and 1935 in USA Between 2017 and 201x in Italy
Dimensions 342 × 195 × 229 mm
(13.46 × 7.68 × 9.02 in)
? ?
Weight 12.70 kg (28.0 lbs) ? ?
Form factor Base Station Base Station Base Station

Other features

Memories ? None ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? ?
Accessories ? External PSU: National 3580B ?
MPN NATIONAL-COMPANY-NC-000121 NATIONAL-COMPANY-SW-000004 ELAD-FDM-DUOR