Thank you very much... all this type of information is very valuable to people with surplus Decibel Cavities.
And of course all the original people at/with Decibel are probably lost in time & place. So whatever we can pull out of various archives is great to have available in the public realm. again thank you! skipp ps: would still like to find Decibel factory cable length information for any band-pass only duplexer. cheers, s. > peme...@... wrote: > Skipp > Attached find a .pdf document that came with a DB 4080 > duplexer I picked up second hand, that was marked up by > the DB factory showing the new cables needed and the loop > sizes for a "2 meter" mod to the standard range VHF > duplexer. > > I have used these measurements for other DB duplexers in > this same family that I have moved from the commercial > VHF frequency rantes to 2 meters and they seem to work > fine after changing to these cable lengths. > Paul K0LAV > peme...@... > > > ----- Original Message ----- > From: "skipp025" <skipp...@...> > To: [email protected] > Sent: Friday, October 9, 2009 12:37:11 AM GMT -06:00 US/Canada Central > Subject: [Repeater-Builder] Decibel VHF BP (only) Duplexer Cable > Measurements? > >  > > > > > re: Decibel VHF Band Pass (only) 4 or 6 Cavity - > Duplexer Cable Measurements? > > Has anyone here in the Group ever really measured the > Decibel Products VHF Band-Pass (only) 4 or 6 Cavity > Duplexer factory cable lengths at any frequency? > > I was looking at one in a rack today... the center T > to each side looks quarter wave and the loops between > bottles look at least half wave. > > Has anyone actually recorded the original Decibel Products > factory constructed lengths for any VHF Frequency pairs? > ... and would be willing to share that information? > > cheers, > skipp > > ps: Even measurements for VHF Frequencies through 160 and > 173 MHz would be handy to have. >
