On 10/9/2014 3:37 PM, Roger (K8RI) on TT wrote:
Don't know if this went or not.
73
Roger (K8RI)
On 10/9/2014 3:01 PM, Mike Reublin NF4L wrote:
It works OK for me on a center fed half wave. A single choke at the
feed point wasn't sufficient, so I added a second where the feedline
reaches the tower. The choke is right against the tower . With the
single choke and the highly imbalanced 75 meter fan dipole when the
power reached about a KW IIRC all the controled LEDs would light. At
the legal limit, they were bright. When I added the second choke,
located st the 20' level on the tower, the RF in the shack disappeared
even with the amp at the full legal limit with a steady carrier.
Yes, I'm sure the tower affects it, but it works. You didn't say what
bands your half slopers are on, but I assume 75 and maybe 160. To get
a 45 to 60 degree angle on 160 takes a tower of 100' or more
I wrapped the coax for my 1/4 wave slopers thru 6 toroids. The bundle hangs so
it touches the tower. Zat OK?
73, Mike NF4L
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73
Roger (K8RI)
--
73
Roger (K8RI)
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