Thank you Jeremy,
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I might pick one up to play with.
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I have spoken to Jeremy Everard last year about shared low phase oscillators development and ended up sending him the actives I was using that they were going to test at the department.
He was using fully kitted out FSWP26 at the time but it was not perfect for low phase noise work.
To be honest far out noise between -170 and -180 is not a problem since cross-correlation gets it cleaned ?up within a minute or two.
It's the close in at 1Hz which takes forever to stabilise — I usually have to wait 30-40 minutes for it to reach -120dBc/Hz at 1Hz for 10MHz carrier.
Also 10-100Hz is a very problematic area where a lot of hash is holding cross-correlation stubbornly high for longer.
Leo
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On Sun, Mar 2, 2025 at 10:56 AM, jmr wrote:
The best thing about the E5052A is that it is very fast. What isn't so good is the qty of internal spurious terms, especially the one from the backlight at 60 kHz. I don't think it can compete with modern alternatives in terms of the noise floor it can achieve. The E5052B is going to be better I think. Hopefully the internal spurious are improved on the E5052B as well.
