> "w6nct" <[EMAIL PROTECTED]> wrote: > I was recently told (by another ham) that I could ONLY tune up > my 70cm duplexer cavities using something called a "tracking > generator".
Then consider the rest of what you hear from your ham friend with a skeptic ear. There are a number of different ways to tune and adjust various types/styles of duplexers and cavities. > For some reason, I thought that my father used to tune up resonant > cavities using a sweep generator, oscilloscope, and a frequency > counter; but I don't recall the exact setup he used. It's one method of making a tracking or sweeping display of your cavity/duplexer assembly. The Wavetek Method (same series) I have here is not as exact as using other specilized test equipment but any port in a storm will probably work well enough. > I inherited his Wavetek (Model #1080, 1GHz) sweep generator, > oscilloscope, and frequency counter. I also have access to an > IFR-1100 service monitor, if I need it (i.e., can be borrowed > from a friend). > > Can I tune up my 70cm duplexer cavities using the equipment I have? Probably... but other minor equipment you have might also be handy. Like a receiver, watt meter, 50 ohm terminations/dummy load(s). > If so, could someone please indicate the test setup and procedure. > Thank-you. Before that... tell us what type of duplexer or cavity/cavities you want to adjust? cheers, s.
