t...@radio.sent.com said:
I think that Menlo Park is somewhat under 300 NM (nautical miles) from China
Lake (depending on exactly where the test was located), and the expected
interference range was about 252 NM. So you might have been at the edge of
the affected area. See:
The term BNM also initially confused me. It appears to be Broadcast
Notice to Mariner, a report produced by the US Coast Guard with
important warnings for ship navigation.
http://pdept.cgaux.org/Documents/Active/NS/LocalNoticeToMariners/lnm14022011.pdf
Detecting GPS interference is an interesting
What sort of gear would I need to detect a local jammer?
A GPS receiver where you can get AGC data, to see if the power in the GPS
band increased - or a SDR-radio, like the SDR-RTL at sub $20 or a
commercial GPS jamming detector.
--
Björn
___
t...@radio.sent.com said:
The term BNM also initially confused me. It appears to be Broadcast
Notice to Mariner
Thanks.
There was another similar event Wed morning:
08:15-10:00 UTC, Wed
01:15-03:00 PDT
and a shorter one from:
13:30-14:00 UTC
06:30-07:00 PDT
--
These are my
On 8/19/15 10:12 PM, Hal Murray wrote:
t...@radio.sent.com said:
I think that Menlo Park is somewhat under 300 NM (nautical miles) from China
Lake (depending on exactly where the test was located), and the expected
interference range was about 252 NM. So you might have been at the edge of
the
No problems in Albuquerque, NM.
On 8/19/2015 2:11 AM, Hal Murray wrote:
Most/all of my GPS toys stopped working for a few hours late Tue evening. A
few where I have good logging ran out of satellites.
Did anybody else notice anything similar?
Was it local interference, or something at the
From: Hal Murray
Most/all of my GPS toys stopped working for a few hours late Tue evening. A
few where I have good logging ran out of satellites.
Did anybody else notice anything similar?
Was it local interference, or something at the GPS level?
I'm in Menlo Park California. That was mid
Most/all of my GPS toys stopped working for a few hours late Tue evening. A
few where I have good logging ran out of satellites.
Did anybody else notice anything similar?
Was it local interference, or something at the GPS level?
I'm in Menlo Park California. That was mid afternoon local
In message 20150819081108.08ebd406...@ip-64-139-1-69.sjc.megapath.net, Hal Mu
rray writes:
Most/all of my GPS toys stopped working for a few hours late Tue evening. A
few where I have good logging ran out of satellites.
Did anybody else notice anything similar?
Was it local
According to the official GPS testing (interference) website, there were tests
at China Lake scheduled for sometime(s) on August 18-20, 2015. I think that
Menlo Park is somewhat under 300 NM (nautical miles) from China Lake (depending
on exactly where the test was located), and the expected
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