Scandinavian Weekend Radio


 
25 meter transmitter

Technical facts:
RF output power: 50Watts
Frequencies: 11690 and 11720 kHz

 

In July 2001, SWR start broadcasting on 25 meter band with first transmitter which gives out 50 W.

 

 

First transmitter under testing of authorities.

 

Oscillators and temperature controlled oven. Oscillators are type Colppits and those are made mainly by using surface mount components.

 

 

Driver stages, output power 5 W

 

50 W power amplifier with one ARF 433 Mos-Fet and series type AM modulator.

 

 

Block diagram of the transmitter

 



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