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G-430/W wont aquire gps signal

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thane

Joined: 27 Nov 2006
Posts: 56

Posted: Wed Nov 25, 2009 5:22 pm Post subject: G-430/W wont aquire gps signal

Just  wanted to see if anyone has had a similar problem??

 I have a  G-430 /W and after 6 weeks of down time to complete Conditional Inspection, I am  unable to get the unit to aquire a signal and thus position.  It has done  this in the past maybe 5-6 times but always came up within 5 minutes or  so.  

 Today I  was unable to get to work  by powering the unit down.

 Any ideas  or input would be great.

 Thane  States

 N321BY

 80  hrs.



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recapen(at)earthlink.net
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Posted: Wed Nov 25, 2009 5:40 pm Post subject: G-430/W wont aquire gps signal

You may need to ensure the time is correct and  give it a rough idea of where it is located.  Also, make sure it is outside  and can 'see' the satellites (not trying to be a smart (at)ss)  - I used an  extension cable on my GPS antenna to put it outside the hangar when I couldn't  roll my plane around.  Also, part of my oil-change requires me to remove my  GPS antenna (it's mounted under the cowl and is in the way of the wrench to  loosen the fliter) - so I test mine after each oil change too...just some  thoughts

  

 Before I swapped out my GX60 for a GNC420W,  the GX60 needed a little help in figuring out where it was.

  

 Something to try - haven't had this problem  with the new 420W....

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jim(at)CombsFive.Com
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Posted: Wed Nov 25, 2009 5:47 pm Post subject: G-430/W wont aquire gps signal

Couple of things to check:- Make sure you are not in a metal hanger (Visible Sky).  Sounds silly, but the unit must be able to see the sky.- Check the cable to the GPS antenna.  It is an active antenna and gets DC power from the 430W.  Make sure the connections are good and no stray shield wire strands are creating shorts.- Make sure antenna location is optimum.  On the top of the instrument panel, top of the fuselage or way out under the cowling away from the firewall.Jim C (N312F - Flying 140 hours - almost ready to do first condition inspection)--------------------------------------------------Just wanted to see if anyone has had a similar problem??I have a G-430 /W and after 6 weeks of down time to complete ConditionalInspection, I am unable to get the unit to aquire a signal and thusposition.  It has done this in the past maybe 5-6 times but always came upwithin 5 minutes or so.Today I was unable to get to work  by powering the unit down.Any ideas or input would be great.Thane StatesN321BY80 hrs.   [quote][b]

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Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Wed Nov 25, 2009 6:27 pm Post subject: G-430/W wont aquire gps signal

I've had this problem before, after being down for some period of time. 

The solution for me was to let the GPS search for up to 20-30 minutes. 

I'm not a rocket scientist, but the position of the satellites has 

likely changed since  you went down for inspection, and when I talked to 

the GPS gurus' (at) Freeflight they said it could easily take 20 + minutes 

particularly if the plane was moved from it's last 'on' position.



Deems Davis

N519PJ

www.deemsrv10.com



Thane States wrote:

 	  Quote: 	
		   Just wanted to see if anyone has had a similar problem??

 I have a G-430 /W and after 6 weeks of down time to complete 

 Conditional Inspection, I am unable to get the unit to aquire a signal 

 and thus position.  It has done this in the past maybe 5-6 times but 

 always came up within 5 minutes or so. 

 Today I was unable to get to work  by powering the unit down.

 Any ideas or input would be great.

 Thane States

 N321BY

 80 hrs.

     *



     href="http://www.aeroelectric.com">www.aeroelectric.com

     href="http://www.buildersbooks.com">www.buildersbooks.com

     href="http://www.homebuilthelp.com">www.homebuilthelp.com

     href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

     href="http://forums.matronics.com">http://forums.matronics.com



     *



 *

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thane

Joined: 27 Nov 2006
Posts: 56

Posted: Thu Nov 26, 2009 9:11 am Post subject: G-430/W wont aquire gps signal

Deems, thanks for that info, that may be what it needs.  I was not able with 

the short flight's to be airborn for more than 10 minutes or so.  I  hope 

that is it.

Thanks,

Thane

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Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Thu Nov 26, 2009 10:51 am Post subject: G-430/W wont aquire gps signal

Try dragging the plane out of the hangar, powering it up and let it 

'search for 30 minutes.

 



Thane States wrote:

[quote] 



 Deems, thanks for that info, that may be what it needs.  I was not 

 able with the short flight's to be airborn for more than 10 minutes or 

 so.  I  hope that is it.

 Thanks,

 Thane

 ---

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Nick Nafsinger

Joined: 07 Aug 2006
Posts: 9
Location: Houston

Posted: Fri Nov 27, 2009 2:46 pm Post subject: Re: G-430/W wont aquire gps signal

You can also try a factory reset. Hold down the CLR key when powering up. This clears the internal memory, including any user points and flight plans...  Then let it reaquire (10-20 min).

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