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  #11  
Old 07-21-2018, 10:26 PM
BobTurner BobTurner is offline
 
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Location: Livermore, CA
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Quite honestly I don’t think anyone, including the FAA, has figured out exactly what “meets the TSO performance specs but is not TSO’d” means, or how to enforce it. As far as I can tell they’re just leaving you to do what you think is best.
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  #12  
Old 01-21-2019, 12:19 AM
DougCronkhite DougCronkhite is offline
 
Join Date: Oct 2017
Location: San Diego
Posts: 69
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Quote:
Originally Posted by RhinoDrvr View Post
Hello,

I my GNS430 should be coming back soon as a GNS430W from Garmin. My understanding is that the reinstall should be as simple as;

1. Remove and Replace the GPS antenna with the included WAAS unit.
2. Replace current cable from antenna to 430 with an RG400 cable.
3. Slide the 430W into the current tray.
4. Enjoy the increased climb performance from a lighter wallet.

Are there any other steps to complete the install? I can’t find any instructions anywhere for upgrading from a 430 to 430W.

Also, is there any issue with flying the box for a few hours before replacing the antenna and coax? I’m planning on going to OSH and would like the second radio, and can do this work immediately post OSH.
What's the cost these days to do this upgrade? I have a older non-waas 430 as well..
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  #13  
Old 01-21-2019, 05:37 AM
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rolivi rolivi is offline
 
Join Date: Feb 2015
Location: Fort Worth
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Looks like $4500 to Garmin plus whatever your local shop gigs you for.

But it's worth it!

https://buy.garmin.com/en-US/US/p/597181
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  #14  
Old 01-21-2019, 06:48 AM
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Walt Walt is offline
 
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Quote:
Originally Posted by rolivi View Post
Looks like $4500 to Garmin plus whatever your local shop gigs you for.

But it's worth it!

https://buy.garmin.com/en-US/US/p/597181
The other option is sell the 430 and purchase a 650, in the long run I think upgrading to the 650 is a better investment IMO.
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  #15  
Old 01-21-2019, 12:06 PM
tim2542 tim2542 is offline
 
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Location: Redding,Ca
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Quote:
Originally Posted by Walt View Post
The other option is sell the 430 and purchase a 650, in the long run I think upgrading to the 650 is a better investment IMO.
Or better swap it out for the Avidyne 440, its a direct slide in, no work needed behind the panel except run an audio line to the audio panel if you want the audio alerts. To go from a 430 to a 650 would be a complete tray and harness swap out. But I agree, I dont know how long big G will continue go support the 430 and Id not put any big money in one.
Tim Andres
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  #16  
Old 01-21-2019, 08:33 PM
BMC_Dave BMC_Dave is offline
 
Join Date: Mar 2017
Location: Seattle, WA
Posts: 272
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If you email G3xpert they should be able to assist without having to go through an avionics shop, for experimental anyway.
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  #17  
Old 01-21-2019, 08:36 PM
DougCronkhite DougCronkhite is offline
 
Join Date: Oct 2017
Location: San Diego
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Starting to think keeping my airplane IFR certified just isn't worth the money considering how little I fly IFR
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  #18  
Old 01-21-2019, 09:00 PM
jliltd jliltd is offline
 
Join Date: Sep 2013
Location: Rancho San Lorenzo
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Quote:
Originally Posted by BobTurner View Post
As you probably know a glare shield mounted antenna is not in compliance with the TSO.
That might be so but many Cirrus do it with twin GA35 WAAS antennas under the glareshield. And Garmin field engineers have allowed it for Bonanzas with the big broad windshield.

YMMV
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  #19  
Old 01-22-2019, 04:57 AM
ploucandco ploucandco is online now
 
Join Date: Jan 2013
Location: NJ+MA
Posts: 62
Default Cirrus under glareshield antennas

Well, but the recommendation is on top of fuselage:
https://www.askbob.aero/node/436
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  #20  
Old 01-22-2019, 08:19 AM
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az_gila az_gila is offline
 
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Location: 57AZ - NW Tucson area
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Quote:
Originally Posted by ploucandco View Post
Well, but the recommendation is on top of fuselage:
https://www.askbob.aero/node/436
That's a 10 year old notice and it has this section in it that is interesting...

The current receiver and antenna performance standards use a conservative estimate for intra-system noise environment and antenna gain patterns that provides significant signal margin. However, the margin available today will gradually decrease as new systems, signals, and satellites come on-line over the next decade. This decrease could potentially cause decreased LPV availability or loss of GPS/WAAS navigation on Cirrus aircraft with antennas mounted under the glareshield.
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