[time-nuts] GPS Antenna
David J Taylor
david-taylor at blueyonder.co.uk
Mon Jul 18 02:35:42 EDT 2016
> On Jul 17, 2016, at 2:35 AM, David J Taylor
> <david-taylor at blueyonder.co.uk> wrote:
> Why is the noise figure so high on these antennas (2.5 dB)? Is that some
> pre-filtering, perhaps?
They are designed as timing antennas. That normally puts them in a “lots of
(like a cell tower). They should have some filtering in front of the preamp
and a preamp that is
fairly good for IMD. There has always been a lot of debate about this or
that one *actually* having
improved performance in these respects.
That makes sense. Thanks, Bob.
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Email: david-taylor at blueyonder.co.uk
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