>Regarding Vector Volt (Impedance) Meters review HP AP NOTE 86
And where can one find this app note online? It does not appear
to be at BAMA, hparchive.com or agilent.com, and a Google search
was not helpful. Thanks.
Hi All: I have a hp-8405a Vector voltmeter (with good probes). I apologize for perhaps a dumb question, but what do I test with it? What is it good for? Are...
It was used to measure the amplitude and phase of voltages in the sub-microwave region. In the days when people build IF strips, etc., out of discrte...
john There are still things you cannot do with a VNA you can do with a vector voltmeter, i build a teststation one time to characterize LDMOS devices up to...
I didn't say all. A VNA is essentially for 50 (or 75) Ohm systems. Outside of that a VVM is useful. IF strips, for example, were nothing like 50 Ohms ...
Hello, I have one of these units, its main interest is to measure the phase difference between two signals, it is also a good HF voltmeter. Keeping the probes...
basically you can measure complex impedance, phase relationships and magnitude , its a very versatile instrument , add some couplers/bridges and you can use it...
the 8405 is considered the grandfather of them all, its manually tuned but was produced by HP for a long time before replaced by the 8508A, rohde came out with...
If my poor old memory serves me, the 8405 was one of the instruments that we built at HP's Rockaway NJ factory in the late 1960s. As a side note, after the PC...
One of my colleagues told me that he took one of these up a (high!) transmission tower to measure something (antenna or associated phasing network).........it...
Blair, Simply put. you have one of the earliest amplitude & phase measuring meters which covered RF, up to 1GHz. With a few accessory pieces, it can be used in...
... And where can one find this app note online? It does not appear to be at BAMA, hparchive.com or agilent.com, and a Google search was not helpful. Thanks....
Check out www.hpmemory.org<http://www.hpmemory.org/> Look under resources then AP notes....its there K ... From: Mike Czuhajewski<mailto:wa8mcq@...> ...
Lothar, thanks for the link to the file for the app note. I also checked the home page, www.hpmemory.org, and it looks like another excellent HP resource. I...
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