For the benefit of others here, the reply by K4SAV on the Topband list is accurate in all respects.
73, Bill http://lists.contesting.com/pipermail/topband/2010-January/032608.html KA1J wrote: > .... > Beverage 1 runs from the house to the east and is 500' long. The wire > comes in through the window sill and is held up by branches & it > dips,. It has no termination resistor. The matching transformer is > next to the window. The ground is connected to the station ground > rod.... > > .....I surely must be doing something wrong. > I wouldn't expect much performance from a Beverage built like that. A bi-directional Beverage will have a lot more noise than an single direction one, and connecting the ground to the station ground will allow all the station ground noise to appear in the signal. It could also destroy the pattern because of the signal picked up on the house wiring, which also gets into the output. Build it like everyone else does, separate ground rods at both ends not connected to anything else, add termination resistor, use transformer with good primary to secondary isolation or lots of chokes on the feedline. -- View this message in context: http://n2.nabble.com/K3-Beverages-on-160-tp4490135p4494495.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
