Loïc
-Message d'origine-
De : time-nuts [mailto:time-nuts-boun...@febo.com] De la part de Bob Camp
Envoyé : dimanche 11 janvier 2015 15:22
À : Discussion of precise time and frequency measurement
Objet : Re: [time-nuts] 53132A Cooling fan
Hi
A very normal “spiral of death” on the
Hi,
My 53132A cooling fan is becoming extremely noisy so I have to fix it or find
ear plugs fast.
If anybody as encountered the same problem witch I suppose is common I will be
interested if there is replacement part easily available for that purpose.
Regards
Loïc
have to address it . I have noticed the presence of smb connectors on
the eval card, so I may substitute the internal clock, and a shield enclosure
may cure that little beast. At last DC power supply wires may also be
substituted by shielded cable just in case.
I am relieved
Regards.
Loïc
Bruce Griffiths writes:
>
> Are you sure that the setup is aligned to minimise AM response?
>
> Are you using cross-correlation?
> Bruce
>
> On Monday, 22 December 2014 5:08 PM, Loïc Moreau
eai..fr> wrote:
>
> Hi all,
>
> My phase nois
measurements
literature so I may have missed something ?
Any advice
Loïc
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that (may be I have missed
something).
Regards
Loïc
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Thanks, everything is clear now.
I will have a try with a pair of Schottky diodes as 10 db give 3.16
attenuation and so no enough for a +-15V rails , I want to be sure ;=) )
Regards
Loïc
-Message d'origine-
De : time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]
rsue phase noise measurements,
for now I connect the SA with a caution after PLL lock and measuring the SA
input with a DC voltmeter before switching to DC SA input but this mode of
operation is a bit frightening.
Any idea ?
Regards
Loïc
___
GMS time unit or homebrew one with one of the numerous
project that we can find.
Can somebody give an advice : I have no clue to choose between the solutions,
apart the power drain of the first one.
Regards
Loïc
http://www.eai.fr
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5350A it will be
appreciated.
The 225 Mhz frequency limit of the 53131 is not a problem as some equipment are
equipped with a 3 Ghz option and it will be possible to construct/buy a
prescaler.
regards
Loïc
http://www.eai.fr
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