At 5/11/2008 14:39, you wrote: >I have followed with interest the thread treating feed line to use to >connect repeater/duplexer/antenna, and I think I should replace the cables >that are now in use on my 2-m repeater. But now the repeater TX and RX and >a remote base use short cables to a feedthrough on the top of the cabinet. >There are 90 degree elbows on the feedthroughs. Would it be better to >eliminate these feedthroughs and elbows by just cutting a hole in the >cabinet and routing the cables directly to the radios? What is common practice?
Feedthroughs are always better, provided they're N connectors. Among other things, they help keep the rodents out of the cabinet. N elbows are good up to a least a couple GHz, so they should work fine @ 440 & lower. SO-239 feedthroughs are all bad @ 440, as are PL-259 elbows. I even had one cause desense @ 146 MHz (nothing but a dummy load on the other side; remove the elbow, desense gone!). Bob NO6B
