A UHF connector won't flash over at 1500 watts if the VSWR is low. Dave WX7G On Nov 29, 2012 9:04 AM, "John Harden, D.M.D." <jh...@bellsouth.net> wrote:
> I have a 100 ft 45G, shunt fed tower with stacked monobanders for 80 -10 > meters. This includes a 24 ft mast with 12 feet out the tower top. I do not > even worry about detuning it. > The shunt (4 wire) cage only goes up to 30 feet due to monobanders down to > about 35 feet. It requires a 2000 pfd vacuum variable in series and a 1000 > pfd vacuum variable to ground (Omega match) to resonate the system. The > series capacitor is motor driven by a 1 RPM, 12 VDC motor. The SWR remains > flat over the band measured at the match and in the shack. I have right at > 40 radials on ground. At this point the curve becomes asymptotic.......... > > With an Amphenol Type "HN" connector there is never any flashover. > SO-239's did not cut it. Type "N" is even worse. > > My Hi-Z 4-8 PRO RX antenna is over 100 feet away and there appears to be > little interaction. If you do the math there should be interaction but > there is so little "real" interaction that I simply disregard it.... The > guys at Hi-Z will tell you there is very little difference between the 4-8 > PRO and the 8 el array that is in a 200 ft diameter circle. They have both > up. The decrease in beam width between the two is inconsequential to me.... > > I can now hear about anything that is on compared to others in my area, > and can work it quickly if I can hear it. The Hi-Z array is that good.... > The waters of the sea have parted for me on top band. > > 73, > > John, W4NU > K4JAG (1959 to 1998) > ______________________________**_________________ > Topband reflector - topband@contesting.com > _______________________________________________ Topband reflector - topband@contesting.com