On 30/09/11 17:46, cdel...@juno.com wrote:
Paul,
The time scale selection is to match the offset in each particular
receiver section and thus put it on frequency. Once there you can use the
chart to determine offsets from the value you use.
The synthesizer setting by virtue of how its designed
Hi Paul,
On 01/10/11 16:05, paul swed wrote:
Magnus,
Indeed on my 5065a 8714 seems to be the right number. With the cfield I
could trim to the gps just fine and hit the stability specification. By the
table thats says I am -250 parts. OK, it works.
Yes.
But I would think I should be at
I am curious that maybe back in 1974 atomic time was one thing and then a
correction was done that makes it -250 from what it was. Maybe a historical
adjustment.
Hi Paul,
In the 1960's when the 5061A and 5065A were designed the
official, legal second was still based on the rotation rate of the
How does an HP 117A create either one? It's a VLF Receiver that compares
your local standard to WWVB, then as now.
-John
=
Anyone doing precision time or frequency back then faced a
real problem: which second do you use? The legal one or the
stable one? Various hp products
When manufacturing the cells for the 5065A receiver package it was not
feasable or cost effective to try and make each cell exactly on
frequency.
With the sythesizer designed the way it was all thay had to do was make
sure that cells would fall within the 0 to +1000X10-10th range. That way
they
Paul,
The time scale selection is to match the offset in each particular
receiver section and thus put it on frequency. Once there you can use the
chart to determine offsets from the value you use.
The synthesizer setting by virtue of how its designed does not allow one
digit changes! You have
Well the 5065a has settled in very nicely from its failure that I documented
for everyone.
Its at specification and actually 2nd harmonics actually higher then the
original numbers by 10 units.
But as I went through the process to realign it to GPS several questions
came up.
The time scale has
