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Oh, well this is Jim w4 j BM I wanted to make a video I got a new toy to play with and actually found some interesting stuff with it already just recently I ordered the DG 8 is Q vector network analyzer the model 3e from SDR kits over in the UK and this covers from one kilohertz up to 13 gigahertz Mahayana frequency than I tend to work, but I've been actually I've been working on a spectrum analyzer and a couple of the filters that I needed for that I didn't have good tools to optimize those filters, so I thought that this would help me as I work on the app I've got it kind of hooked up to a little test jig here and where here's a component that came from a junk box of a local silent key that I've been going through it's got three pins, and it's labeled C 3 3 0 9 Z 3 0 9 have googled and couldn't find anything for that did a continuity test and the center pin is actually connected to the case does have a small screw hole there to hold it that's hooked, so it mounted on a case somehow this does look new instead of removed the pins are insulated to be honest when I first saw it I thought maybe it was a reed relay with like one end going to the coil and the ground on the case and the other twos being contacted clean clear closed when it was powered but with the marking Z a lot of times Z means a crystal filter or something like that and it when I tested it is definitely done not look like a real eye, so that actually gives me an excuse to use the new vector network analyzer and characterized the device a little and see what we've got, so we have this connected to the analysis our here this is the output basically if you're not familiar with them that, so this is almost like a transmitter coming over injecting a signal onto one of the pins here it also measures what it's reflected power, but that's also you might think of it as something like the standing wave ratio but in effect it's measuring the complex impedance of how much comes it is transmitted power comes out and then comes back it can measure both the magnitude and the phase angle which lets you calculate the impedance that it's transmitting into on the other side there's a reception port, and I'm coming out of this device the center pin is grounded, but I'm coming out this is really clued together, but I can actually use correction factors and characterize this and did a pretty good job of being able to just factor out the test jig itself, so I've got on the other side I've got some kind of signal that's making it through that's going into a receiver and I can measure again the magnitude and phase angle of that which lets me do a pretty good job of characterizing the device I'll put I will put a screenshot up instead of this in just a second, but I can do a single sweep, or I can do a continuous sweep so here if I do a single sweep it's going through, and it's injecting everything is referenced to zero dB, so it's injecting the signal, and you can see that it's dropping off there, and then...
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