Do you get the same crackling noise with the duplexer attached to a dummy load? a ground mounted antenna with different feedline?
73 Glenn WB4UIV At 06:12 PM 1/16/2010, you wrote: >I know its been a long time since I first posed the question on what >might be causing the noise we were experiencing after being hit by >lightening. After many trips to the Technical shop for testing, we >replaced the repeater ( was a vertex 5000, now a Icom ur2000) and >are in process of checking out controllers. The duplexers were my >big worry. And yes, it would seem that concern wasn't unfounded. We >started experiencing a degradation on the receive side of the >repeater and then, a leakage from the cans. We had the duplexers >checked out with two different service monitors and found nothing! >The technician who works on duplexers took ours apart and found only >a little bit of carbon, but that was it. they checked out ok. We put >them back into service and the noise was there making >communications impossible. >We are now going to replace them with a 6 configuration instead of >the four we have been using. >My question to the list is, besides the noise factor and crackling >noise, is there any other methode of discovering if the can's are bad or not? >Yes, I did and have been losing sleep over this one. > >I also wish to thank Kevin and the group for all their feedback on >my question I put in last summer. You helped more than you know. > >Rich Ranta K8JX >www.w8usa.org > > > >------------------------------------ > > > >Yahoo! Groups Links > > >
