Riverman,
"Didn’t say they were resonant. Those were made in the days before I purchased my RigExpert AA-54 so had no way of measuring reactance. Like many, the only thing I had to go by was SWR. Adjusted lengths for lowest on CH 20."
now we know where the 103" figure comes from in the gp calculations. unfortunately resonance has nothing to do with swr. resonance is based on the length of the radiator and swr on the feedline is the result of some combination of R & jX other than R=50 jX=0 present at the antenna feedpoint. changing the length of the radiator is not changing the swr, it's changing the resonant frequency to some other frequency showing a lower swr while leaving the radiator resonant far from the intended operating frequenc(ies)y. antennas don't have an swr. thanks for the input.
"Didn’t say they were resonant. Those were made in the days before I purchased my RigExpert AA-54 so had no way of measuring reactance. Like many, the only thing I had to go by was SWR. Adjusted lengths for lowest on CH 20."
now we know where the 103" figure comes from in the gp calculations. unfortunately resonance has nothing to do with swr. resonance is based on the length of the radiator and swr on the feedline is the result of some combination of R & jX other than R=50 jX=0 present at the antenna feedpoint. changing the length of the radiator is not changing the swr, it's changing the resonant frequency to some other frequency showing a lower swr while leaving the radiator resonant far from the intended operating frequenc(ies)y. antennas don't have an swr. thanks for the input.