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Garmin 430/530 and WAAS

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ericparlow(at)hotmail.com
Guest

Posted: Wed Mar 07, 2007 7:01 am Post subject: Garmin 430/530 and WAAS

Has anyone had the 430/530 WAAS conversion done and installed it?



We need to know if there were any modification needed to the plane's wiring 

or antennas.



It's been suggested that RG-58 is not acceptable and the cable length is 

critical.  Also that the antenna needs to change.



ERic--

RV-10, 40014

N104EP

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sfdarton(at)yahoo.com
Guest

Posted: Wed Mar 07, 2007 9:20 am Post subject: Garmin 430/530 and WAAS

I am Getting the upgrade in two weeks. The box is a

slide in because it is your own box that is sent to

Garmin in Kansas. The antenna is replaced. The antenna

coax has to have a specific gain? The shop doing my

upgrade purchased the test equipment to measure this.

Without that device Garmin is recommending to install

(if I recall correctly) 20 or 30 foot coax to the new

antenna. With a non WAAS antenna you want to use a

short coax. Also if you have multiple units, 430/430

or 530/430, if you only upgrade one unit the crossfil

function will no longer work.



Steve 40212

--- Eric Parlow <ericparlow(at)hotmail.com> wrote:



 	  Quote: 	
		   

 <ericparlow(at)hotmail.com>

 

 Has anyone had the 430/530 WAAS conversion done and

 installed it?

 

 We need to know if there were any modification

 needed to the plane's wiring 

 or antennas.

 

 It's been suggested that RG-58 is not acceptable and

 the cable length is 

 critical.  Also that the antenna needs to change.

 

 ERic--

 RV-10, 40014

 N104EP

 

 

 



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ericparlow(at)hotmail.com
Guest

Posted: Wed Mar 07, 2007 10:10 am Post subject: Garmin 430/530 and WAAS

Here's what we've learned about the WAAS upgrade so far from Aviation 

Consumer.



Garmin is holding to its offering of $1500 box upgrades

New 430W/530W are selling for $10,750/$16495 respectively

While 430/530 are still selling for $9253/$14998 respectively

The installation is covered by an AML/STC

This AML/STC required specific standards and requirements for the 

installation

If you aircraft is on the AML it requires a field approval(certified 

aircraft)

The GA56 antenna supplied with the 430/530 will not work

The A34 is approved antenna with the same foot print but different 

connector, BNC vs TNC

The TNC connectors are in short supply due to demand

Other antennas that are approved are" GA35W, GA56W, and GA56A

The swap is pin-for-pin, except for with certain autopilots and EHSI systems

Pigtail lengths for terminating shields at the receiver must be less then 3"

Cable loss must be < 7db which requires replacement of RG-58 cable with 

RG400 or RG142

Bendix/King KFC225 and KAP140 required discrete outputs to capture the GPS 

glidepath

The New WAAS boxes will not crossfill with older boxes

Remote annunciation may be required if box is not in the pilot's field of 

view

Field of view Horz: edge of the WAAS box < 13.8" from the center of the 

primary instruments

Field of view Vert: edge of the WAAS box is no lower than the bottom of the 

primary instruments

ERic--

RV-10, 40014

N104EP

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