[time-nuts] FE 5680A "new version" - Filtering the 10 MHz

[Robert Atkinson]

Hi,
One "off the shelf" or more likely out of the junk box option is to use the filter components from a 10Mb/s ethernet card. They work quite well but might introduce some temperature related phase shifts.

Robert G8RPI.



________________________________
From: Sylvain Munaut <246tnt at gmail.com>
To: time-nuts at febo.com
Sent: Tuesday, 15 November 2011, 9:46
Subject: [time-nuts] FE 5680A "new version" - Filtering the 10 MHz

Hi all,

As noted somewhere on the list, the 10 MHz output of the newer version
units is less filtered than before.
The output at the internal RF connector is even worse (there is some
more filtering going on inside the DB9 itself).

I'm looking for ways to clean up that 10 MHz output, preferrably that
would fit inside the unit itself (like a small PCB, adding an external
SMA output).
Any suggestion ?

BTW, does any one know what kind of connector are the small ones
inside ? I tought maybe mini-ufl but my pigtail don't seem to fit.

Cheers,

    Sylvain

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