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Search: Posts made by: Alan Browne
Forum: Instrument Flight Rules November 5th 11, 08:25 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 9
Views: 3,766
Posted By Alan Browne
The CBO is proposing to kill GPS IIIB and IIIC

On 2011-11-05 12:53 , HIPAR wrote:
On Nov 5, 10:32 am, Alan
wrote:


Given the state of the US federal debt and deficit and the high
reliability...
Forum: Instrument Flight Rules November 5th 11, 02:32 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 9
Views: 3,766
Posted By Alan Browne
The CBO is proposing to kill GPS IIIB and IIIC

On 2011-11-04 19:33 , macpacheco wrote:
http://www.gpsworld.com/defense/news/congressional-budget-office-issues-report-gps-defense-12261

Sad, sad possibility, the congressional budget office is...
Forum: Instrument Flight Rules November 2nd 11, 04:18 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-11-02 09:43 , Terje Mathisen wrote:
Alan Browne wrote:
On 2011-11-01 19:54 , Ed M. wrote:
On Nov 1, 3:21 pm, Alan
wrote:

That...
Forum: Instrument Flight Rules November 2nd 11, 12:52 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-11-01 19:54 , Ed M. wrote:
On Nov 1, 3:21 pm, Alan
wrote:

That wouldn't fly far - there are only so many viable gold codes -
though...
Forum: Instrument Flight Rules November 1st 11, 10:21 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-11-01 17:47 , HIPAR wrote:
On Nov 1, 9:25 am, Alan
wrote:

...

L5 isn't exactly usable yet with all of 2 sats in orbit. Will be a...
Forum: Instrument Flight Rules November 1st 11, 03:18 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-11-01 09:25 , Alan Browne wrote:
On 2011-11-01 02:34 , macpacheco wrote:
On Oct 31, 11:56 am, Alan
wrote:
On 2011-10-30 20:08 , HIPAR...
Forum: Instrument Flight Rules November 1st 11, 01:25 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-11-01 02:34 , macpacheco wrote:
On Oct 31, 11:56 am, Alan
wrote:
On 2011-10-30 20:08 , HIPAR wrote:

On Oct 30, 4:44 pm,...
Forum: Instrument Flight Rules October 31st 11, 01:56 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-10-30 20:08 , HIPAR wrote:
On Oct 30, 4:44 pm, wrote:

NASA JPL operates a Global Differential GPS system with worldwide
coverage. They claim 10cm...
Forum: Instrument Flight Rules October 30th 11, 09:19 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 18
Views: 6,114
Posted By Alan Browne
PRN133 ranging now useable for SoL, at non precision approachlevel

On 2011-10-30 16:44 , macpacheco wrote:
Since PRN133 was set healthy for WAAS corrections, its ranging was
kept at NM (Not Monitored) level, preventing its use for safety of
life applications,...
Forum: Piloting June 5th 11, 05:08 AM Posted to rec.aviation.piloting,sci.geo.satellite-nav
Replies: 3
Views: 620
Posted By Alan Browne
One reason why you shouldn't rely on GPS

On 2011-06-04 20:42 , macpacheco wrote:
On Jun 4, 8:55 pm, wrote:
The FCC's potential plans to give away vital frequency bands to the detriment
of GPS will have...
Forum: Instrument Flight Rules April 3rd 11, 02:43 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 3
Views: 3,500
Posted By Alan Browne
Galaxy XV / PRN 135 geo arrives at 133.1W, WAAS ranging backto 7.5 meter UDRE

On 2011.04.03 9:01 , macpacheco wrote:
Galaxy XV / PRN 135 WAAS arrived this weekend at 133.1W
Ranging is now back to the best possible (for GEOs) 7.5 meter UDRE.
In its normal operating orbit,...
Forum: Instrument Flight Rules January 21st 11, 03:01 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 1
Views: 2,212
Posted By Alan Browne
GPS Service Denial Testing?

On 2011.01.21 1:16 , macpacheco wrote:
On Jan 21, 2:40 am, Sam wrote:
On 1/20/11 10:21 PM, Mxsmanic wrote:

Because it's important to eliminate all backups to...
Forum: Instrument Flight Rules January 19th 11, 05:43 PM Posted to sci.geo.satellite-nav,rec.aviation.ifr
Replies: 11
Views: 3,988
Posted By Alan Browne
Earth shattering news for GNSS, commercial availability of ChipScale Atomic Clock (CSAC)

On 2011.01.18 22:36 , macpacheco wrote:

CSACs might also make their way into all DPGS stations, improving
their calculated corrections. All current WAAS stations have a
standard Rb atomic...
Forum: Owning November 15th 07, 12:07 AM Posted to rec.aviation.owning
Replies: 27
Views: 1,744
Posted By Alan Browne
C-182's to avoid?

Alan Browne wrote:

I was speaking with a somewhat smug fellow the other day who claimed

Thanks everyone for your replies.

Cheers,
Alan
Forum: Owning November 13th 07, 04:53 PM Posted to rec.aviation.owning
Replies: 27
Views: 1,744
Posted By Alan Browne
C-182's to avoid?

I was speaking with a somewhat smug fellow the other day who claimed
older C-182's (1968 that I'm looking at) had inefficient wings and that
the Continental would not make it to 1500 hours; 1300 if...
Showing results 1 to 15 of 15

 
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