[Test-Equipment] GPS locked base ?

Sun, 28 Dec 2003 10:08:45 -0500

Patrick:

Please feel free to contact me if you have any questions that aren't
answered at http://www.realhamradio.com/GPS_Frequency_Standard.htm.  I
have been using the HP-3801A for a few years now to control my Signal
Generators, Frequency Counter, etc.  I used to spend a few hours getting
my 10 MHz 'Texas Flying Clock Oscillator', a precision Frequency
Standard, within a few parts in 10 -8 by monitoring the phase difference
with WWV on 10 or 15 MHz.  By the way the best time for doing this is
between 1:00 PM and 3:00 PM.

Note that the HP-Z3801A frequency accuracy is much better than its
specifications reflect. 

Ted Marston, WA2RPI
LF-UHF Systems Engr.
Rochester, NY

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of TK5EP
(Patrick Egloff)
Sent: Sunday, December 28, 2003 4:59 AM
To: test-equipment
Subject: [Test-Equipment] GPS locked base ?

Hi All,

Is anyone using a GPS locked frequency standard ?

I would like to have a good reference or at least a precise method to
use my equipements.

Has anyone used the 1s clock coming out of a GPS receiver as a frequency
meter gate ?? My idea is to use this 1s rate, eventualy divided by 10 to
have a 10s rate, and feed it in my frequencymeter to have a precise gate
rate. Than measuring a 10 MHz TCXO should give 10000.0000. If not would
mean that the TCXO has moved and i can correct it to show the right
frequency and have a precise reference. At least at the time of measure.

Good or bad idea ?

73 ans season greetings, Patrick TK5EP.

http://tk5ep.free.fr

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