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

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