Regarding the choke construction and implementation. Mike and I have had an offline exchange, with pictures, and I think we have agreed that the choke has been constructed properly per the newest K9YC specifications using a 2.4" Type 31 Fair-Rite toroid and 18 turns of RG400.
Also, the 150' long coax feedline has never been attached while taking any measurements. At least not any reported here. All of the recent data (taken with the RigExpert analyzer) I've put in tables in postings has been while being connected to the output of a choke. The feedline was not part of the equation. The coax stubs coming off of the choke are only a couple of inches long on each end. The body of the RigExpert is plastic and it doesn't seem to matter whether or not I'm holding it but I do take the "official" measurements with it sitting on a towel on the ground. I did also take measurements with a 4' coax jumper between the choke output and the analyzer just to get the analyzer clear of the radial attachment area. This made no appreciable difference in the measured values. At this point the "antenna erected over haunted burial ground" theory is sounding more and more plausible. Hope to catch lots of you guys, hey and maybe some DX too, on the 160 contest this weekend. 73, Todd - NR7RR _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
