My software is not working to do this calculation at the moment. What I'd like to know is how much reactance change there is, when going from say 3500 khz UP to 3900 khz. IE: 68' LL rotary dipole res
I switch in about 250 pF to QSY from 3550 to 3850 kHz on my inverted vee. Rick N6RK _______________________________________________ _______________________________________________ TowerTalk mailing l
I don't think you told us the element diameter. From EZNEC I see about 272ohms /500kHz for #20 wire, and 186ohms/500kHz with 1" diameter. Steve G3TXQ _______________________________________________ _
Jim, there was an old DOS program in the ARRL Antenna Book software for modeling mobile antennas. A google search will probably turn it up from other sources. This program expects coil loading but th
Jim, a further thought on the motor driven tuner: As you know, the loss in the variable C will be negligible. The loss in a loading coil is related to the Xl and Q. The more Xl, the greater the loss.