136 kHz equipment

the station is located in Sormano (jn45pu, 45°52'28"N   9°15'03"E), 50 Km north of Milano, 750 m over the see. My usual QTH is Milano, so I'm on air only in week-ends and in holiday's time (if WX is good!).

transmitter

27 MHz xtal oscillator, x200 divider, 120 W power amplifier with 1xIRF840 mosfet
under construction 400 W power amplifier

receiver

direct conversion: 27.100 MHz xtal oscillator, x200 divider, NE602 mixer, active low pass filter, audio amplifier

antenna tuning

 250 mm PVC form, 190 turn, 6 mH main coil + 200 mm PVC form, 50 turn, 0.6 mH coaxial sliding coil (connected in series like variometer)

antenna system

30 m about of random wire

ground system

30 m about  buried copper rope + 3 x 2 m ground rods

Mail to ik2pii                                                                       Home