[time-nuts] GPS Filter

Chris Albertson albertson.chris at gmail.com
Mon Mar 7 17:39:16 UTC 2011


On Mon, Mar 7, 2011 at 5:01 AM, Bob Camp <lists at rtty.us> wrote:
> Hi
>
> In the case of a GPS, you really can't increase the aperture (gain = directivity) since you want to cover the entire sky.


No, in theory it need not be an omnidirectional antenna. One could use
a very high gain antenna if it were able to track each satellite.  If
you had access to the GPS firmware one could build a phased array
antenna that was electronically steered.  I think it could work but
it's not practical because of the very high cost and large size.

Would it be possible to build a much simpler version that used a line
array phased to null the nearby tower.

-- 
=====
Chris Albertson
Redondo Beach, California



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