A buddy has 3 x 20m monobanders, stacked at 172, 117, 62 ft. Currently, all 3 are driven in phase, via a L network. ( 50 ohm to 16.66 ohms, consisting of a shunt 317.7 pf cap from input 50 ohm connec
Jim, I have only a years experience with my 5 over 5 stacks but have observed that the top antenna only can be much quieter at times. I haven't experienced heavy p-static but that is often cited as a
On 20m I have a 4 high and a 3 high 20m stack. All towers can have any combination using modified stack match style boxes with a 25 to 50 ohm unun. The mismatch, even using 4 antennas in // is quite
I have had several stacked antenna systems since 1997 - a six stack of tri-banders, some three and two stacks of mono-banders, and a three stack of OWA's on 40. I have usually been able to switch all
I had a 3 stack of C31's in Arizona and was able using a StackMatch to select any combo (no out of phase selection though)... I can tell you on 20 meters there was never a case where anything other t
I had a 3 stack of C31's in Arizona and was able using a StackMatch to select any combo (no out of phase selection though)... I can tell you on 20 meters there was never a case where anything other t
I typically use the whole stack of antennas all the time unless I am pointing in multiple directions. I have all individual rotators, some people with rotating towers add a rotator to one of the ante
10m is not 20m but I suspect the same effect applies: "Using only the 45 degree azimuth, below is a plot of my takeoff angles for all 3 antennas ( ), the bottom two ( ) and the bottom only ( ). I oft