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ANTENTOP- 01- 2006, # 008

Experimental CW QRP Transceiver

 

 

 

By: A. Dolinin, UA9LAK/UN7, Baikonur

 

Parameters:

General

Frequencies coverage: 14,000 14,200 kHz;

Supply voltage: 10 to 15 VDC

Size and weight: depend on parts, used at manufacturing.

 

Receiver

Sensitivity: better 1 microV;

Selectivity: depends on quartz filter

 

Transmitter

Power: up to 5 W (on 50 Ohm load);

 

Design: The block diagram of the trcv is shown on Figure 1. No one electromagnetic relay here, an electronic switch is used. Circuits of the rx and tx are almost independent.

 

A. Dolinin, UA9LAK/UN7,. Baikonur

 

Figure 3

 

Audio Amplifier

 

 

 

 

http://www.antentop.org/

Page 57

 

 

 

57 58 59 60

 

 

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August 3, 2016 16:28

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