I was curious to know if anyone had results using the vector 4000 on 15m and 20m with a tuner and how it worked out 73s
...or run multiple gammas?
Unfortunately most gamma matched antennas have poor performance when operated well below the resonant frequency. As you go lower in frequency the capacitor in the gamma looks more and more like an open circuit to the RF. Antennas that are matched with an inductor like a 5/8 wave ground plane or Imax 2000 do a better job loading up out of band.