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Desktop Shortwave receiver
Desktop Shortwave receiver
4 Band QRP CW Transceiver

General

HAM bands 160m  80m  40m  20m  15m  10m  ? 80m  40m  30m (WARC)  20m  6m 
Freq. stability ? ? ?
Tuning steps Continuous Continuous 10 / 100 Hz, 1 / 100 kHz

Receiver

RX-range 10-160 m
1.8-2.0 / 3.5-4.1 / 7-7.5 / 14-14.5 / 21-21.5 / 28-28.5 / 28.5-29.1 / 29.1-29.7 MHz
15,5-26,6 / 23,5-41 / 37,5-65 / 64-115 meter
110-175 / 170-300 / 290 - 570 meter optional
3.2-16 MHz
Modulations AM   CW   SSB   AM   CW   USB  
Sensitivity 0.5 µV for 10 dB S/N ? ?
Selectivity 0.5 / 1 / 2.1 / 3.8 kHz @ -6 dB ? 4 crystal filter, 400Hz-3KHz continued adjustable
Filters ? ? ?
Receiver system Double conversion superheterodyne TRF with regeneration ?
IF-freqs. 3500 / 450 kHz ? 400 Hz - 3 kHz
Image rejection ? ? ?
Audio output Requires external speaker. 3 W output ? 8ohm load about 0.1W

Transmitter

TX-range - - 3.5-4 / 7.0-7.3 / 10.1-10.15 / 14.0-14.35 MHz
80 / 40 / 30 / 20 m
Modulations - - CW  
RF-output ? ? 4-5 W @ 13.8 V

Connections

Antenna - - BNC
Impedance 50-80Ω 50Ω ?
Other - - -

Electrical

Power req. Mains 6 + 45 + 135 + 180 V 11.1 V battery pack or 9-14 V DC
Current RX ? ? 60 mA
TX - - 800 mA

Physical

Manufactured Between 1962 and 1965 in Great Britain Between 1929 and 1935 in USA Between 201x and 201x
Dimensions 407 × 215 × 332 mm
(16.02 × 8.46 × 13.07 in)
? 132 × 85 × 35 mm
(5.20 × 3.35 × 1.38 in)
Weight 13.20 kg (29.1 lbs) ? 380 gr (13.4 oz)
Form factor Base Station Base Station Handheld

Other features

Memories None None 30 channels in 1 bank(s)
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? Auto key w/ adjustable speed
Accessories ? External PSU: National 3580B ?
MPN K.W.-ELECTRONICS-000077 NATIONAL-COMPANY-SW-000004 YOUKITS-HB-000001B