From: Mike Nolan [EMAIL PROTECTED]
Subject: Re: [time-nuts] Making the most of SRS Rb source
Date: Wed, 18 Jan 2006 21:58:00 -0400
Message-ID: [EMAIL PROTECTED]
Hi,
Hi Mike,
Now, considering that I would like to probe a pulsar what would be the typical
gear needed? At what frequency do I probe
On Wed, Jan 18, 2006 at 09:17:31AM -0700, David Forbes wrote:
Our need for accurate time/frequency is:
1) Local oscillator frequency +/-1kHz at several hundred GigaHertz;
2) Time correct to +/-10 milliseconds to keep the telescope pointed correctly.
I suppose it would make a lot more sense
In message [EMAIL PROTECTED], David Forbes writes:
At 6:43 AM -0800 1/18/06, James Maynard wrote:
I suppose it would make a lot more sense to run the GPS 1PPS into the
Rb source so that it will discipline itself, and the phase error be
monitored to make sure it stays at zero.
Am I barking up
Poul,
Thanks for the informative reply. I guess the short answer is that we
should use a very clean long-term GPS trend record to correct the
PRS10 rather than the 1PPS from the GPS unit, which has horrible
short-term stability.
I believe that Tom VB mentioned once that a daily update to the
Hi,
You should definately ask the VLBI people how to deal with the maser.
You definately don't want to touch the frequency reference during an
observation. They really do need the 10^-15 short-term stability. They
can solve for pretty substantial frequency offsets (and linear drifts)
after the
This is an interesting discussion and aimed directly at my homebrew efforts.
How about using the PRS10 in time stamping mode where you feed it
the 1 PPS from the GPS and use a uC to read back the time stamp
and the GPS saw tooth to get the actual delta time? It would be
easy to record these
In message [EMAIL PROTECTED], Brooke Clarke writes:
HI Poul:
That's very interesting. How about using the PRS10 in time stamping
mode where you feed it the 1 PPS from the GPS and use a uC to read back
the time stamp and the GPS saw tooth to get the actual delta time? It
would be easy to
