NOTAM for GPS outage

[Travis Marlatte]

I can't imagine that this hasn't been discussed but I didn't find anything
in my search. I've been ignoring it since it specifically says "NON CIVILIAN
GPS." But, this just seems so weird.

!GPS 04/036 ZAU NON CIVILIAN GPS MAY BE UNREL OR UNAVBL WITHIN A
240 NM RADIUS OF 420153N/913847W AT FL400 WEF 0704250001-0712312359

That's April 25 through the end of the year, right? Non Civillian. FL400? No
higher. No lower. No block altitude. The lat/long is somewhere around Cedar
Rapids, IA, right?

That's that all about?
--
-------------------------------
Travis
Lake N3094P
PWK

[Scott Skylane]

Travis Marlatte wrote:
> I can't imagine that this hasn't been discussed but I didn't find anything
> in my search. I've been ignoring it since it specifically says "NON CIVILIAN
> GPS." But, this just seems so weird.
>
> !GPS 04/036 ZAU NON CIVILIAN GPS MAY BE UNREL OR UNAVBL WITHIN A
> 240 NM RADIUS OF 420153N/913847W AT FL400 WEF 0704250001-0712312359
>
> That's April 25 through the end of the year, right? Non Civillian. FL400? No
> higher. No lower. No block altitude. The lat/long is somewhere around Cedar
> Rapids, IA, right?
>
> That's that all about?
I'd guess that Collins is doing some high-tech testing/development work.

Happy Flying!
Scott Skylane

[Larry Dighera]

On Mon, 03 Sep 2007 02:35:32 GMT, "Travis Marlatte"
> wrote in
>:

>I can't imagine that this hasn't been discussed but I didn't find anything
>in my search. I've been ignoring it since it specifically says "NON CIVILIAN
>GPS." But, this just seems so weird.
>
>!GPS 04/036 ZAU NON CIVILIAN GPS MAY BE UNREL OR UNAVBL WITHIN A
>240 NM RADIUS OF 420153N/913847W AT FL400 WEF 0704250001-0712312359
>
>That's April 25 through the end of the year, right? Non Civillian. FL400? No
>higher. No lower. No block altitude.

That does seem strange indeed.

>The lat/long is somewhere around Cedar Rapids, IA, right?

It sure looks like it: http://skyvector.com/#25-13-2-1990-2992
https://www.notams.jcs.mil/distribution/printQuery.html

A disk with a radius of 240 NM has an area of 180,979.2 nautical miles
square. It's huge.

>That's that all about?

War games? Jamming testing? Because it's localized over Cedar
Rapids, it's not a fault of the satellite system. I guess you could
inquire with KZKC KANSAS CITY (ARTCC),KS

[Jon]

On Sep 3, 5:36 am, Larry Dighera > wrote:
> On Mon, 03 Sep 2007 02:35:32 GMT, "Travis Marlatte"
> > wrote in
> >:
> > [..]

> >!GPS 04/036 ZAU NON CIVILIAN GPS MAY BE UNREL OR UNAVBL WITHIN A
> >240 NM RADIUS OF 420153N/913847W AT FL400 WEF 0704250001-0712312359

>[...]

> https://www.notams.jcs.mil/distribution/printQuery.html

Unfortunately, that link doesn't produce the NOTAM. Selecting KZAU
checkbox then "View Notices" button at the bottom of https://www.notams.jcs.mil/
works, though.

>[...]

> War games? Jamming testing?

Most likely jamming/interefence testing.

> Because it's localized over Cedar
> Rapids, it's not a fault of the satellite system. I guess you could
> inquire with KZKC KANSAS CITY (ARTCC),KS

Perhaps 1-888-US-NOTAM

>From the "Contact Us" link at the top of the main page:

=================
This site is sponsored by the Department of Defense Notice to Airmen
(NOTAM) Division. E-mail comments or suggestions about this site to 7-
.

Military NOTAM coordinators can be reached Monday through Friday 0700
- 1700 (Local) EST at DSN 994-4205/6/7. If you do not have access to
DSN, contact the FAA NOTAM Office at 1-888-USNOTAM (1-888-876-6826)
and ask to speak with a military NOTAM coordinator.

The European NOTAM Office at Ramstein Air Base, Germany can be reached
Monday through Friday at DSN 314-480-8092, Com ++4906371478092 or
email .

For technical assistance after hours, weekends, and Holidays, contact
the NAIMES Technical Support at 1-866-466-1336 or (703) 326-3905.

For NOTAM assistance after hours, weekends and Holidays, contact the
FAA NOTAM Specialists at 1-888-876-6826.
=================


Regards,
Jon

[Jim Stewart]

Scott Skylane wrote:
> Travis Marlatte wrote:
>> I can't imagine that this hasn't been discussed but I didn't find
>> anything in my search. I've been ignoring it since it specifically
>> says "NON CIVILIAN GPS." But, this just seems so weird.
>>
>> !GPS 04/036 ZAU NON CIVILIAN GPS MAY BE UNREL OR UNAVBL WITHIN A
>> 240 NM RADIUS OF 420153N/913847W AT FL400 WEF 0704250001-0712312359
>>
>> That's April 25 through the end of the year, right? Non Civillian.
>> FL400? No higher. No lower. No block altitude. The lat/long is
>> somewhere around Cedar Rapids, IA, right?
>>
>> That's that all about?
> I'd guess that Collins is doing some high-tech testing/development work.

Sounds likely to me. Since it's become
politically and practically impossible
to turn the entire GPS system off to
neutralize a hostile threat, the government
is working on equipment and techniques to
deny GPS coverage over specific areas.

Probably a test of that equipment.