Bob wrote:
I've been quite cheap and patient and have put together a quite
capable 22GHz HP 70000 MMS series SA * * * That gets you down to 10Hz RBW
* * *
Other options also exist. My 8565 SA was less than $1K when I bought
it. It will get a RBW down to about 1KHz.
For laboratory work at VHF and below, an RBW of 1kHz is completely
useless (as I mentioned before, some field work is different). Even
10Hz is not very useful. I rarely use an RBW greater than 1Hz (other
than for simply finding signals in a wide swath of spectrum, as
opposed to analyzing them), and often use RBWs in the mHz region.
Best regards,
Charles
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