On 5/24/22 17:04, johnasolecki@... wrote:
I recently acquired an HP P532A frequency meter. I know it's a resonant cavity device that goes from 12.6 GHz to 18 GHz but I don't how or what to hookup to the two flanges to get it to work.
I've seen the Signal Path video but the unit he demos is a different frequency range and has connectors rather than flanges. There are some manuals and app notes on eBay but each is twice what I paid for the device.
I have signal sources and detectors in the correct frequency range, I just need to know how to connect to the flanges. Does anyone have any info?
These are "waveguide flanges". Waveguide is a common, very efficient way to move microwave energy around. See the Wikipedia article about it for an introduction.
The size of a waveguide, and thus the size of its flanges, depends on the frequency of their intended use. These are (generally) standardized, and have a standardized nomenclature. Your P532A has "WR62" waveguide flanges. If you look for a WR62 waveguide to coax adapter, you should be able to find something that makes sense.
For these frequencies you'll likely be working with type N, SMA, APC-7, or 3.5mm connectors.
There are waveguide to coaxial cable adapters available, for different sizes of waveguide flanges.
This is quite a few orders of magnitude higher in frequency than the audio gear I normally work on...
Oh this stuff is great fun. You'd better free up some space and budget, you're gonna need it! ;)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Dave McGuire