Hi,
You still get hanging bridges, but smaller in amplitude and for the same
oscillator stability much more short-lived.
Cheers,
Magnus
On 06/03/14 00:03, Bob Camp wrote:
Hi
If you are going to decode and use the sawtooth data out of the receiver,
there’s no need to eliminate the hanging bridges. The sawtooth data does that
for you already. Put another way, heating the receiver is *harder* than just
using the decoded data….
Bob
On Mar 5, 2014, at 9:53 AM, Mike M <timen...@binsamp.e4ward.com> wrote:
Bob Camp wrote:
Hi
Be careful of what you wish for.
One way to eliminate the hanging bridge is to have the oscillator
exactly on frequency. That sounds fine. The problem is that you
are always in the middle of a bridge.
Bob
That's fine. Just set the oscillator to keep the bridge in the
middle of the range. It should be possible to detect the correct
frequency and phase by monitoring the sawtooth correction data from
the GPS.
Now you have eliminated the sawtooth error and no longer have to add
correction for it.
This will eliminate the quantization error in the sawtooth
correction data since it is no longer needed. If the 1pps loop is
properly designed, it should help the loop track the 1pps signal
more accurately.
Mike
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