Military GPS testing started yesterday on the west coast...

[Matt Herron Jr.]

(per FAA Flight Advisory) You might want to factor this in to your
badge or record attempts as the GPS trace may be unusable or have
holes in it. This would be especially true at higher elevations like
wave flights. The effected area is huge, covering most of Nevada and
southern California. For example the area covered is above 10k MSL at
Lake Tahoe. Testing will continue through Jan 23rd. Pilots are
encouraged to report GPS anomalies to appropriate ARTCC.

[Tony[_5_]]

On Jan 17, 5:39*pm, "Matt Herron Jr." > wrote:
> (per FAA Flight Advisory) You might want to factor this in to your
> badge or record attempts as the GPS trace may be unusable or have
> holes in it. *This would be especially true at higher elevations like
> wave flights. *The effected area is huge, covering most of Nevada and
> southern California. *For example the area covered is above 10k MSL at
> Lake Tahoe. *Testing will continue through Jan 23rd. *Pilots are
> encouraged to report GPS anomalies to appropriate ARTCC.

if anyone wants to borrow a barograph for the winter let me know :)

[Morgan[_2_]]

Hmm, maybe that explains why XCSoar registered "takeoff" on the screen
yesterday at 17,500 to the north of Ojai. Good day to be in
California flying out of Santa Ynez.




On Jan 17, 3:39*pm, "Matt Herron Jr." > wrote:
> (per FAA Flight Advisory) You might want to factor this in to your
> badge or record attempts as the GPS trace may be unusable or have
> holes in it. *This would be especially true at higher elevations like
> wave flights. *The effected area is huge, covering most of Nevada and
> southern California. *For example the area covered is above 10k MSL at
> Lake Tahoe. *Testing will continue through Jan 23rd. *Pilots are
> encouraged to report GPS anomalies to appropriate ARTCC.

[Morgans[_2_]]

"Matt Herron Jr." > wrote in message
...
> (per FAA Flight Advisory) You might want to factor this in to your
> badge or record attempts as the GPS trace may be unusable or have
> holes in it. This would be especially true at higher elevations like
> wave flights. The effected area is huge, covering most of Nevada and
> southern California. For example the area covered is above 10k MSL at
> Lake Tahoe. Testing will continue through Jan 23rd. Pilots are
> encouraged to report GPS anomalies to appropriate ARTCC.

Anyone know what the testing is all about, and why it might make the GPS
unreliable?
--
Jim in NC

[Mike[_8_]]

On Jan 17, 7:23*pm, "Morgans" > wrote:
> "Matt Herron Jr." > wrote in ...
>
> > (per FAA Flight Advisory) You might want to factor this in to your
> > badge or record attempts as the GPS trace may be unusable or have
> > holes in it. *This would be especially true at higher elevations like
> > wave flights. *The effected area is huge, covering most of Nevada and
> > southern California. *For example the area covered is above 10k MSL at
> > Lake Tahoe. *Testing will continue through Jan 23rd. *Pilots are
> > encouraged to report GPS anomalies to appropriate ARTCC.
>
> *Anyone know what the testing is all about, and why it might make the GPS
> unreliable?
> --
> Jim in NC

I was told that one reason they test to see how GPS can be compromised
to give false reading in case of an attack.

Don't know if it is true though.

Mike

[soarboy]

On Jan 17, 6:23*pm, "Morgans" > wrote:
> "Matt Herron Jr." > wrote in ...
>
> > (per FAA Flight Advisory) You might want to factor this in to your
> > badge or record attempts as the GPS trace may be unusable or have
> > holes in it. *This would be especially true at higher elevations like
> > wave flights. *The effected area is huge, covering most of Nevada and
> > southern California. *For example the area covered is above 10k MSL at
> > Lake Tahoe. *Testing will continue through Jan 23rd. *Pilots are
> > encouraged to report GPS anomalies to appropriate ARTCC.
>
> *Anyone know what the testing is all about, and why it might make the GPS
> unreliable?
> --
> Jim in NC


see https://www.faasafety.gov/files/notices/2011/Jan/Flight_Advisory_Porterville_GPS.pdf
for more information.

[Grider Pirate]

On Jan 17, 11:23*pm, soarboy > wrote:
> On Jan 17, 6:23*pm, "Morgans" > wrote:
>
> > "Matt Herron Jr." > wrote in ...
>
> > > (per FAA Flight Advisory) You might want to factor this in to your
> > > badge or record attempts as the GPS trace may be unusable or have
> > > holes in it. *This would be especially true at higher elevations like
> > > wave flights. *The effected area is huge, covering most of Nevada and
> > > southern California. *For example the area covered is above 10k MSL at
> > > Lake Tahoe. *Testing will continue through Jan 23rd. *Pilots are
> > > encouraged to report GPS anomalies to appropriate ARTCC.
>
> > *Anyone know what the testing is all about, and why it might make the GPS
> > unreliable?
> > --
> > Jim in NC
>
> seehttps://www.faasafety.gov/files/notices/2011/Jan/Flight_Advisory_Port....
> for more information.

Thanks for the link!