> I'm doing some rewiring of my shack and the antenna runs. > I'm going to order > some BuryFlex which will be used as the main runs to both > of my antennas. > I'm trying to minimize the number and type of connections > while doing all > this. I don't yet have any BuryFlex as my previous runs > were RG213 (Wireman > CQ110) so I don't have a feel for its flexibility. RG213 > is pretty stiff. > > I'm wondering if I can bring two BF lines up to the back > of the K3/10 or > will that be like connecting two anacondas to a church > mouse?
Jim, two points: 1.) We should always have an entrance bulkhead ground at the building cable entrance that is bonded to the mains ground. This is where 99% of the lightning protection will occur. Why not run a small cable from there to the K3?? 2.) The loss at HF and even lower VHF in barrel connectors or connectors in general is immeasurable without very special methods. There is some bad information on Internet about it and some real wild myths, but the loss in a typical moderate to good PL259-barrel-PL259 is about .05 dB or so at 30 MHz, and less on lower frequencies. When I test connectors here at HF, I actually have to do it thermally with a few kilowatts of power!!! The loss is almost always too low to measure accurately on a $35k network analyzer at HF, even on a PL259/SO-239 combination. Unless you are on UHF or working EME on 144 MHz, there is very little reason to avoid changing cable sizes inside the dwelling. 73 Tom ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
