Last evening I looked at my raw (but sawtooth corrected) GPS vs. Rb and
didn't see anything noteworthy.
John
----
On 3/8/2012 10:20 PM, Mark Spencer wrote:
Over last day and a half I've been comparing the 10Mhz output of my Jupiter
based GPSDO (actually a G3RUH GPSDO) to a BVA OCXO. So far I don't see
anything un expected. That being said I recognize that it would take a fairly
significant disruption in the GPS signal for the affects to be noticeable in
the 10 Mhz output.
--- On Thu, 3/8/12, ALAN MELIA<[email protected]> wrote:
From: ALAN MELIA<[email protected]>
Subject: Re: [time-nuts] Solar Storm Effects?
To: "Discussion of precise time and frequency measurement"<[email protected]>
Received: Thursday, March 8, 2012, 10:24 AM
From the look of it to me it is a
"non-event" it looks like it bounced off and didnt
reconnect. there is little increase in the ring current i.e.
the charge in the van Allen belt according to the Dst index
1500z today......yesterdays event was bigger from that point
of view
Alan G3NYK
--- On Thu, 8/3/12, John Ackermann N8UR<[email protected]>
wrote:
From: John Ackermann N8UR<[email protected]>
Subject: Re: [time-nuts] Solar Storm Effects?
To: [email protected],
"Discussion of precise time and frequency measurement"
<[email protected]>
Date: Thursday, 8 March, 2012, 15:20
On 3/8/2012 10:08 AM, J. Forster
wrote:
The media is reporting a large solar storm and
saying
it will upset GPS
among other things.
Has anybody see any effects?
I won't be able to look at the data until I get home
from
work tonight, but last evening I started measuring the
sawtooth-corrected output of a CNS2 clock vs. the PPS
output
of an Rb standard. Wondering if I'll see any
glitches... if so I'll report back here.
There was a major solar event in December, 2006 and at
the
time I was monitoring GPS signal strength. I got a
very noticeable glitch at the time the blast hit the
earth:
http://febo.com/pages/gps_solar_flare/
Unfortunately, I didn't have an appropriate PPS
measurement
going on at the time.
John
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