Hi vern. I will also like a copy of your setup there too, as I also have an interesting setup that only uses two transceivers capable of switching txing and rxing on the two freq's that the cavities would be tuned to, of coarse they are modify with discriminator output and a signal level output.
Got the setup from a Harris tech, and retired army tech. All one will need, is a good pairs of eyes and one good ear, and a little knowledge about tuning cavities. Have tune, and retuned them for years, big and small without any problem, and when they are checked with a service monitor with the whole works, (tracking generator, spectrum analyzer etc) there are on the button. v44kai.....Joel. ----- Original Message ----- From: "rtoplus" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Saturday, April 07, 2007 10:08 AM Subject: [Repeater-Builder] Re: Tuning duplexers with sweep generator? > Thanks Vern...I would like to see your setup, if you don't mind. > Email me at your convenience. > > Have a great weekend > Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 > > > --- In [email protected], "w6nct" <[EMAIL PROTECTED]> wrote: >> >> >> Thank-you; it has been an interesting learning exercise for me. >> >> For the detector, I actually used a little gadget box circuit that > my >> Dad had made up years ago. When I first found it (unlabeled) in > his >> electronics stuff, I didn't know quite what it was. Like so many >> other little boxes he had, he used to toss a handfull of components >> into a small box and use it when he was testing something out. > When I >> was young, they always seemed like magic and mystery. It was only >> after several years at college that I could even start to figure > out >> the mysterious little circuits inside. >> >> The particular setup I used was much like N5ESE's QRP Dummy Load > with >> it's built-in RF Detector (http://www.io.com/~n5fc/dummy3.htm); > but in >> my case, I used a standard "T" connector to combine my Dad's > detector >> and a separate 50 ohm dummy load (also in a gadget box). I > stumbled >> on N5ESE's version when I was trying to convince myself of what my >> Dad's actually did; especially since Dad's was wired a bit > different >> from the others that I had seen. >> >> At Gary Schafer's (K4FMX) recommendation, I also put a 6db pad > between >> the sweep/marker generator and the cavity's input. >> >> If you like, I can sketch out the whole test setup; just let me > know >> with an off-group message ([EMAIL PROTECTED]). >> >> Enjoy. >> >> <<< vern >>> >> > > > > > > > > Yahoo! Groups Links > > >
