OK, several folks came back and recommended detuning my transmit antenna in receive. Certainly any receive antenna I have is going to be in the shadow of my transmit antenna, a 130-foot flat-top abou
Tim "Trying to figure out what "detune" is" Excellent question. The ground is the most important part of the T antenna, without the ground the antenna became a 1/4 element isolated from ground and wo
There is no single solution for detuning an antenna it depends on electrical length. For verticals a quarter wavelength or less it is common to have a contactor between the network and the radiating
If its RF that is a concern the only positive method would be feeding it into a 50/75 Ohm resistor when transmitting. I had to do that some years ago when a Beverage ran between the phased vertical p
I am very interested in this subject, I am trying to figure out how to detune my 160 inverted L. I am using a flag antenna for receive and unfortunately it is only about 50 feet from the base of the
My tower shunt feed for 160 and 80 is latching relay remote controlled. On 160, certain orientations of my very close RX flag result in reduced signal due to the influence of the tuned vertical. In t
The easy way to do that is with a relay between the coax center conductor and the L wire at the feedpoint. When the relay is open, that makes the L a 1/4 wave on 160 which is not self-resonant. The q
A previous edition (and maybe the current one) of the Low Band DXing book has several methods of detuning TX antennas...might be worth a look. Some can be done right in the shack. 73 Charlie, N0TT __