Thanks. Your results are encouraging! The duplexers I have are notch type and like yours only have one connector with a tee. 73 and aloha, Eric KH6CQ
--- On Sat, 5/31/08, Wayne <[EMAIL PROTECTED]> wrote: > From: Wayne <[EMAIL PROTECTED]> > Subject: Re: [Repeater-Builder] GE Radios to sale !!!! > To: Repeater-Builder@yahoogroups.com > Date: Saturday, May 31, 2008, 3:54 PM > The duplexer I said was NG for 2 meters is 4 cans, but doing > some > preliminary tests indicate it can tune in the 440 band. I > checked for > lowest SWR in the VHF area, then for lowest in the UHF > area. > IT does seem to work, and has what looks like good steep > skirts testing > this way. > These cans are not the two connector type, but use only > one connector per > can and TEE's at the cans. > The ultimate test will be when I try setting up a unit, > maybe less than > 50 watts, and see how they compare to a Micor 2 can > duplexer. > Maybe later on, I can try some of the _big_ cans I have > that work well on > the VHF bands, and compare again. > Mind, I don't say they will always work out, but some > will, and some > maybe will not. > As I said, basic tests make it look good for the one type > so far. > YMMV > > Wayne WA2YNE > > On Wed, 28 May 2008 16:50:10 -0500, Eric Grabowski > <[EMAIL PROTECTED]> > wrote: > > > Wayne, > > > > It would be great if you could do that test. I have > some VHF high band > > duplexers that won't tune down into the 2 meter > band but I would love to > > use them on 70 centimeters. I too have read that not > only is it possible > > to use 150 MHz duplexers on 450 MHz, but that the > performance is > > slightly better because of the "larger" > cavities. Unfortunately, I don't > > have the equipment necessary to do the test myself, > but I would really > > like to know if this works. > > > > 73 and aloha, Eric KH6CQ > > > > --- On Wed, 5/28/08, Wayne <[EMAIL PROTECTED]> > wrote: > > > >> From: Wayne <[EMAIL PROTECTED]> > >> Subject: Re: [Repeater-Builder] GE Radios to sale > !!!! > >> To: Repeater-Builder@yahoogroups.com > >> Date: Wednesday, May 28, 2008, 4:59 PM > >> First, Who said it was considered 2 meters? > >> Second, please turn your cap lock off. > >> Third, I had read, somewhere, that some cavities > made for > >> the VHF high > >> band could be tuned as bandpass on the 440 band. > After all, > >> the 3rd > >> harmonic of 147.00 MHz is 441.00 Mhz. Same would, > more or > >> less, hold true > >> for reject filters. > >> And I said "might"... > >> I just might do a test with a 3 can high band > filter I > >> have that is NG > >> for normal 2 meter repeater splits. > >> > -- > Using Opera's revolutionary e-mail client: > http://www.opera.com/mail/ > > ------------------------------------ > > > > Yahoo! Groups Links > > >
