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GPS and Fiberglass

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westexflyboy

Joined: 02 May 2008
Posts: 9
Location: Presidio, TX

Posted: Sat Jan 03, 2009 10:11 pm Post subject: GPS and Fiberglass

Have any of you RV-10 builders experimented with GPS antennas installed in the overhead console? (i.e. inside the cabin but not up on the dash)  I am wondering if the fiberglass cabin cover impedes the signal.  I want to hide the two GPSMAP 496 antennas.   Any ideas?

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_________________
Chase Snodgrass
Presidio, Texas
www.flybigbend.com
Simultaneous RV-10 twins under construction

Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Sun Jan 04, 2009 4:43 am Post subject: GPS and Fiberglass

Chase, here's a link to an Archive thread that deals with the same 

questions you are asking.



http://www.matronics.com/searching/getmsg_script.cgi?INDEX 4874467?KEYS=antenna_&_fiberglass?LISTNAME=RV10?HITNUMBER=54?SERIAL=0428527735?SHOWBUTTONS=YES



In the end I dropped the gyro stabilized gimble approach and mounted 

them to the top of the Cabin Cover

Deems Davis # 406

'Its all done....Its just not put together'

http://deemsrv10.com/



westexflyboy wrote:

 	  Quote: 	
		   



 Have any of you RV-10 builders experimented with GPS antennas installed in the overhead console? (i.e. inside the cabin but not up on the dash)  I am wondering if the fiberglass cabin cover impedes the signal.  I want to hide the two GPSMAP 496 antennas.   Any ideas

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Dick Sipp

Joined: 11 Jan 2006
Posts: 215
Location: Hope, MI

Posted: Sun Jan 04, 2009 8:40 am Post subject: GPS and Fiberglass

I mounted the 496 antennas under the engine cowling; working fine so far at 

90 hours.



Currently vacationing in GA on St. Simons Island with friends, off to Ft. 

Meyers tomorrow for a few days.



What a magic carpet.



Dick Sipp

N110DV



---

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Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Sun Jan 04, 2009 7:11 pm Post subject: GPS and Fiberglass

I just tried th elink and it seems to work, perhaps the email program 

warpped it and you only got a part of it. As a back up go to the 

Matronics archive and search on 'fiberglass and antenna placement' there 

are a number of posts around Sep 07 that are relevant.



Deems



westexflyboy wrote:

 	  Quote: 	
		   



 Thank you Deems, but I couldn't get that link to work.



 do not archive



 --------

 Chase Snodgrass, CFI

 Presidio, Texas

 www.flybigbend.com

 40820/40821





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 22902#222902

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pascal(at)rv10builder.net
Guest

Posted: Sun Jan 04, 2009 7:49 pm Post subject: GPS and Fiberglass

try doing a search

Match:  #54

Message:  #12814

Date:  Sep 16, 2007

From:  Deems Davis <deemsdavis(at)cox.net>

Subject:  Re: Fiberglass and antenna placement



--------------------------------------------------

From: "westexflyboy" <airplanedriver(at)gmail.com>

Sent: Sunday, January 04, 2009 6:46 PM

To: <rv10-list(at)matronics.com>

Subject: Re: GPS and Fiberglass



 	  Quote: 	
		   



 Thank you Deems, but I couldn't get that link to work.



 do not archive



 --------

 Chase Snodgrass, CFI

 Presidio, Texas

 www.flybigbend.com

 40820/40821





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 22902#222902

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AirMike

Joined: 27 Feb 2007
Posts: 514
Location: Nevada

Posted: Sun Jan 04, 2009 11:20 pm Post subject: GPS and Fiberglass antenna

here is one installation. The inside job seen at OSH on 2007. I was told by th avionics shop that it will reduce the life of the antenna, so I went with two on top of the dash

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_________________
See you OSH '18
Q/B - sold.

pitts_pilot(at)bellsouth.
Guest

Posted: Mon Jan 05, 2009 5:42 am Post subject: GPS and Fiberglass

I think 'maybe' should be used instead of 'will'.  The heat in the 

glareshield area on a sunny day can get pretty high too.  I don't think 

that area in the picture gets as hot as folks think (but I have no data) 

because most of the engine heat goes out through the cowl exit in 

flight.  If baffled good. after shutdown, convection should take most of 

that heat and exit through the inlets.  I'm in the habit of opening up 

the oil filler door after I park and really don't get much heat exiting 

there (but I think any help is good!).  Heat isn't kind to electronics, 

especially semiconductors, but semiconductors have 'matured' over the 

years and are increasingly more tolerant of heat.  Someday I'll try and 

measure the temps ...... but those 'somedays' seem to take forever!!!

Linn

AirMike wrote:

 	  Quote: 	
		   



 here is one installation. The inside job seen at OSH on 2007. I was told by th avionics shop that it will reduce the life of the antenna, so I went with two on top of the dash



 --------

 OSH '08 or Bust (busted) be there in &quot;09

 Q/B Kit - wiring and FWF





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