Radio Direction Finding ( RDF ) , also called Foxhunting
Two tube antique battery receiver 80 mtr. ( ARP12 = CV1331-pentodes )
In this case I built a small fox transmitter !!! inside, and fooled some of the hunters, but not my friend Erik PA3EGX ( left ) hi hi.
Joke ,tx inside. Original status Inside
My 2 mtr fox hunt receiver info
Design PA0CWR, Radio Gooiland
My 80 mtr fox hunt receiver info
CQDL 11/87, Holger Eckardt, DF2FQ New version, with mods Maarten PE7M
My 2 meter transmitters, I like small !!
Using only one BF199 and 1,5V or 3V battery.
My 80 meter transmitters, I like small !!
1x BC547, modulating with flashing led, 9v battery.
PA3FYG in action ( 80m ) Lot of work before start Happy Birthday PA3FYG
TX Production on camping Test RX 80m by Erik PA3EGX