RE: [Repeater-Builder] Pass-Notch Duplexer Woes

2009-06-26 Thread Jeff DePolo
> Ok, now lets do the opposite. Set the spec analyzer to 147.1 & tune > it up. Set up the sig gen @ 147.7 & UH OH, 2.5dB loss. The stubs (which I take it you removed) alter the pass response. They're really notch cavities. Adding the stubs will change the response adjacent to the notch from "hig

Re: [Repeater-Builder] Pass-Notch Duplexer Woes

2009-06-26 Thread DCFluX
Hmm, Reject only cans were found in Hybrid Ring duplexers. Is the manufacturer Sinclair? On Fri, Jun 26, 2009 at 1:10 PM, tahrens301 wrote: >  Hi Folks, > > Here's the tale: > > Got a 'free' set of cans donated to our ham repeater project. > The tags inside say it was originally in the 162 range,

[Repeater-Builder] Pass-Notch Duplexer Woes

2009-06-26 Thread tahrens301
Hi Folks, Here's the tale: Got a 'free' set of cans donated to our ham repeater project. The tags inside say it was originally in the 162 range, but had been re-tuned to the 154 range. Called the new owners of the dB product duplexer line, but it was so old that they had no info. Was a 'SP' p