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SP2DMB Poland flag Poland

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I am a radio amateur since 1979. From time to time I take part in the competition.


My anntenas


Recent years have been very creative....


TRX SDR AVALA-01 all HF band - 2010


My transverter TS70 for 70MHz - 10 watts OUT, IF -28MHz



Modification set to FT-847 for 70MHz band



Power amplifier PA70 - 10 watts to 70MHz with RD16HHF1


PA70H - 50 watts fot 70MHz with RD70HVF1


RF MULTIMETER with Atmega8

and MULTIMETER for Wind Turbines, solar panels, power supply (the same PCB)

Transverter TS70-897 70MHz, dedicated to FT-897 (assembly in place of the battery)


SWR bridge for NWT analyzer etc.


and last constructuion : DROIDface - interface for iPhones, smartphones, tablets etc.

Works with any transceiver !!!


Circuits diagrams and descriptions can be found here:




any questions - write to me:





5836289 Last modified: 2015-07-16 00:08:04, 5770 bytes

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