Here you will find the design of an Amplitude Modulated shortwave transmitter.
(with roughly 4 Watts output on the desired frequency set by the crystal between 5.5MHz and 10.24MHz.)
All capacitors are ceramic type.
I use fixed mini-presets but you can use external POTS for the Microphone/ Mixing controls
(Use Preset in the emitter circit).
The transmitter can be used for A.M. voice purposes on the HAM band.
On the 7MHz Amateur Band over 160 miles have been archeived using a 40mtr wiredipole antenna.
The 22pF trimmer aligns the frequency and the coils and 47pf trimmer tunes for maximum output.
It is ideal to tune up this circuit using a fieldstrength meter placed a few inches away from the transmitter.
Tune for maximum output...
When testing or operating this transmitter PLEASE DO
MIND the legislation of the airwaves !
Beste Jack B, er is door me gezocht op internet. Kon geen WebSDR vinden voor de 2 meter in regio Walcheren. Misschien kun je een RTL-SDR Stick of scanner regelen voor ontvangst. Succes!
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