e time and frequency measurement
Subject: Re: [time-nuts] FE-5680A thermal management
Hal Murray wrote:
le...@wa5znu.org said:
For reference, Ridge Equipment has a photo of one of this year's
crop of FE-5680A mounted to a large aluminum plate.
http://cgi.ebay.com/ws/eBayISAPI.dl
Behalf Of Rex
Sent: Monday, June 15, 2009 2:33 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] FE-5680A thermal management
Hal Murray wrote:
le...@wa5znu.org said:
For reference, Ridge Equipment has a photo of one of this year's crop
of FE-568
They look like Torx Screws. Not so?
Thanks,
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Rex
Sent: Monday, June 15, 2009 2:33 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] FE-5680A
Hal Murray wrote:
le...@wa5znu.org said:
For reference, Ridge Equipment has a photo of one of this year's crop
of FE-5680A mounted to a large aluminum plate.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330233071735
http://i43.tinypic.com/126cpcp.jpg
Is that an aluminum plate
le...@wa5znu.org said:
> For reference, Ridge Equipment has a photo of one of this year's crop
> of FE-5680A mounted to a large aluminum plate.
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330233071735
> http://i43.tinypic.com/126cpcp.jpg
Is that an aluminum plate or the top side of a P
For reference, Ridge Equipment has a photo of one of this year's crop of
FE-5680A mounted to a large aluminum plate.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330233071735
http://i43.tinypic.com/126cpcp.jpg
Leigh/WA5ZNU
Almost all rubidium standards DO specify the use of some form of a
In article <2ed501c9e87a$a7a4a850$7900a...@athlon1200>, Dave Brown
writes
>
>Murray et al,
>The package of both units is clearly meant to be mounted on
>something-the real question is how much heat sinking would that
>something have provided? Changing the external heatsinking to achieve
>the n
Almost all rubidium standards DO specify the use of some form of a heat sink.
For the FRK and M100 units this can be a heat sink with around 1" fins or just
bolted to a metal plate or chassis.
The military freq standard that had M100's in them had the unit mounted to a
5x5x.2" aluminum plate
- Original Message -
From: "Murray Greenman"
To:
Sent: Tuesday, June 09, 2009 6:42 AM
Subject: [time-nuts] FE-5680A thermal management
Leigh,
I agree with Chuck. I have both an FE-5650A and an FE-5680A. With
the
former I was concerned about the heat, and so ran i
> In message ,
> "Murray Greenman" writes:
>
>>With the FE-5680A I had the opportunity to study things in more detail.
>
> The PRS10 manual has some good info.
>
> --
> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
> p...@freebsd.org | TCP/IP since RFC 956
> FreeBSD committer |
In message , "Murra
y Greenman" writes:
>With the FE-5680A I had the opportunity to study things in more detail.
The PRS10 manual has some good info.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-t
Leigh,
I agree with Chuck. I have both an FE-5650A and an FE-5680A. With the
former I was concerned about the heat, and so ran it only for short
periods, until I understood what was going on. I had the impression from
the data sheet that there were different heatsink options for different
temperat
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