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More info on GNS 430/530 WAAS upgrade



 
 
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  #1  
Old June 22nd 05, 02:41 PM
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"Peter R." wrote:

wrote:

Another big "if" is whether WAAS and LPV will be around 5 years from now.


Now this speculation is something I never read before. What would be the
reason for the demise of this technology, assuming it does not survive the
next several years?


The primary GPS system is operated by the military and has huge benefits for them. It
also has huge benefits to much of the population beyond the military and beyond
aviation. The incremential cost to operate the system for all civil users is zero.
The system is useful through the entire world.

WAAS, OTOH, is a United States system funded and operated by the FAA. It is only
useful in the United States and some nearby areas. It is a different implementation of
GPS augmentation protocol than proposed by a few other countries.

WAAS functions through transponders rented by the FAA on commercial satellites, plus
several expensive ground stations. The operating costs are in the hundreds of millions
of dollars a year. The system is being used by a very small part of general aviation.
Most air carrier and biz jets have no need for WAAS at all, plus it dies as soon as
they fly off shore.

The bean counters at the FAA have trouble keep justifying this huge annual expense for
very little benefit.

  #2  
Old June 22nd 05, 09:55 PM
Peter R.
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Tim wrote:

snip
The system is being used by a very small part of general aviation.


Are you saying that WAAS is only used by the aviation community? What
about those who use WAAS-enabled handheld GPS units for boating,
driving, and hiking/backpacking?

Oh, and don't forget the geo-cachers. ;-)


--
Peter

  #3  
Old June 22nd 05, 03:33 PM
Richard Kaplan
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wrote in message ...

Another big "if" is whether WAAS and LPV will be around 5 years from now.



What makes you think it will not?

--------------------
Richard Kaplan

www.flyimc.com


  #4  
Old June 22nd 05, 04:57 PM
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Richard Kaplan wrote:

wrote in message ...

Another big "if" is whether WAAS and LPV will be around 5 years from now.


What makes you think it will not?

--------------------
Richard Kaplan

www.flyimc.com


Read my response right above your message; the one at 6:41. ;-)

  #5  
Old June 22nd 05, 01:26 AM
Ron Natalie
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PPT33R wrote:
x?

WOULD SOMEBODY PLEASE GIVE GARMIN SOME REAL COMPETITION? They really
need to be taken down a peg or two.


Garmin bought out their competition. My 480 has WAAS.
  #6  
Old June 22nd 05, 04:01 AM
Brad Salai
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I've been trying to convince my club to consider the 480 over the 530, any
thoughts on that?

Brad

"Ron Natalie" wrote in message
...
PPT33R wrote:
x?

WOULD SOMEBODY PLEASE GIVE GARMIN SOME REAL COMPETITION? They really
need to be taken down a peg or two.


Garmin bought out their competition. My 480 has WAAS.



  #7  
Old June 22nd 05, 02:00 PM
PPT33R
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Were I to do it over, I would have definitely gone with the UPSAT box,
aka GNS480. It was designed from the ground up to meet the WAAS TSO.

  #8  
Old June 22nd 05, 07:15 PM
Ron Natalie
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Brad Salai wrote:
I've been trying to convince my club to consider the 480 over the 530, any
thoughts on that?

If you're going to fly IFR, the 480 is the way to go. While it's (by
history) different than EVERY other Garmin GPS out there, it is more
straight forward for IFR ops.
  #9  
Old June 23rd 05, 02:50 AM
Matt Barrow
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"Ron Natalie" wrote in message
...
Brad Salai wrote:
I've been trying to convince my club to consider the 480 over the 530,

any
thoughts on that?

If you're going to fly IFR, the 480 is the way to go. While it's (by
history) different than EVERY other Garmin GPS out there, it is more
straight forward for IFR ops.


I'd like to dump my KLN94 and go to a GPS480 with an AviDyne MX-500. One
problem is the GPS480 does not support curved flight paths (GAMA) that a GPS
430 does.

I wonder if I should go with a dual GPS in the form of a GPS 430/ 480 combo?
Would it work?


--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO


  #10  
Old June 23rd 05, 01:41 PM
Ron Natalie
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Matt Barrow wrote:


I'd like to dump my KLN94 and go to a GPS480 with an AviDyne MX-500. One
problem is the GPS480 does not support curved flight paths (GAMA) that a GPS
430 does.


It will fly them (at least it does holds, procedure turns, and DME
arcs). Maybe it doesn't reflect htem properly on the GAMA graphcis
to the AVIDYNE (I have an MX20)



I wonder if I should go with a dual GPS in the form of a GPS 430/ 480 combo?
Would it work?



Perhaps but confusing as hell I would think.
 




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