On that subject, I have a Symmetricom chassis for sale with Rb track/hold
(dual PRC inputs I believe, with room for a second holdover card,
dual power supply, and 16 2048Khz outputs - more reduncancy than you
would want).
Can go at time-nut price before it goes on auction.
+ ship from 3000 BE.
Manual included, tested good.
Thanks,
Xtof.
for sale with the that On 23/11/10 13:36, Bob Camp wrote:
Hi
If you are going to depend on any form of over the air timing, you need holdover. It's
not a "option" its a requirement. There are simply to many things that can
create issues with the signal you are using. That's true of any over the air system, not
just GPS. Redundancy would also be nice, the people who design these systems don't seem
to ever go that route.
The nice part of that is - we get lots of Thunderbolts and Z380x's on the
surplus market nice and cheap. Good stuff.
Bob
On Nov 23, 2010, at 7:30 AM, Collins, Graham wrote:
This has been an interesting topic of discussion.
As a wee bit of a side track, many years ago while in the military and
living in the barracks, I used to be able "jam" my roommates FM radio by
tuning to a point 10.7mhz away from his favourite station. The LO of my
radio was radiating sufficiently strong enough that it could "jam" the
other radio up to about 50 feet away.
Cheers, Graham
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Bob Camp
Sent: November 22, 2010 20:38
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] GPS jamming susceptibility
Hi
If you run through the article the author claims that he's getting a few
hundred feet of range with a few hundred mw of power into a good
antenna.
Your cell phone and FM broadcast radio are equally susceptible under
typical conditions.
Bob
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