Simple 3-band Amateur radio receiver direct conversion 7, 14, 21 MHz
Simple 3-band Amateur radio receiver direct conversion 7, 14, 21 MHz
Simple 3-band Amateur radio receiver direct conversion 7, 14, 21 MHz

Simple 3-band Amateur radio receiver direct conversion 7, 14, 21 MHz

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$29.50
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Soldering Project Kit

Simple 3-band receiver of direct conversion on 7, 14, 21 MHz

    
The way to air of the beginning radio fan quite often begins with construction simple according to the diagram and construction of the Receiver of Direct Conversion (other name – the heterodyne receiver). 
 

Main technical features:

  Ranges of operating frequencies: 7, 14, 21 MHz

  Bandpass range of a receiving path (on the level of-6 dB): 300... 2,600Hz

  Sensitivity of a receiving path from an antenna input ~0,7mV

  Adjacent channel selectivity ~70Db

  The current and power supply ~ 10mA, 9-12V

 

* Note: NEW PCB has 2 modifications on board (choose before checkout):
- Air Capacitor on board
- External multi-turn potentiometer (air capacitor is excluded from this kit)

 The Kit consists of manual, all necessary elements for assembly + Air Capacitor (or Multi-turn Potentiometer).