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Re: WTB: HP 8971B or advice


Pete Manfre
 

Be careful of bandwidth.? ?Will alter readings.? 8971 has yig filter.?


Pete


On Sun, Apr 26, 2020, 6:04 PM Don Bitters via <donbitters=[email protected]> wrote:
Reg,
When I worked for HP we used to use the 8970S (8970B, 8971B, 346B/C, and an RF/microwave source - 8340A/B, 8672A, or 83650B) to do NF (noise figure) measurements.? The 83631 will definitely do the job.? The 8971B is not absolutely required, but makes it a lot easier to do the NF measurement.? You simply need to have a mixer to be able to down convert the desired signal to get it in the range of the 8970.? Also, the microwave source has to have a lower NF than what you are trying to measure.

Don Bitters



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