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Antenna Spacing

 
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jesse(at)itecusa.org
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PostPosted: Thu Mar 16, 2006 7:31 am    Post subject: Antenna Spacing Reply with quote

Does anybody know off hand the minimum spacing for the Transponder to COM antennas?  I have heard that the COM’s need to be at least 30 inches apart, but does the Xpndr just need 36 inches or so from the COM’s?
 
Thanks and do not archive.
 
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org (jesse(at)itecusa.org)
www.itecusa.org
 
I'm in Ecuador right now and should be back in the country by the end of May.  You may call me at 352-505-1899 and leave a message that I can check from down here.  Any I-TEC questions can be directed to the I-TEC office at 352-465-4545.
 


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Tim(at)MyRV10.com
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PostPosted: Thu Mar 16, 2006 7:53 am    Post subject: Antenna Spacing Reply with quote

From the GTX330 installation manual page 2-2.

C. Avoid mounting the antenna within three feet of the ADF sense
antenna or any other communication antenna and six feet from the
DME antenna.
Tim Olson - RV-10 N104CD - Flying
do not archive
Jesse Saint wrote:
Quote:
Does anybody know off hand the minimum spacing for the Transponder to
COM antennas? I have heard that the COM’s need to be at least 30 inches
apart, but does the Xpndr just need 36 inches or so from the COM’s?




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rvbuilder(at)sausen.net
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PostPosted: Thu Mar 16, 2006 8:33 am    Post subject: Antenna Spacing Reply with quote

 Generally speaking, you also want the shortest run of cable possible between the transponder and antenna.  This usually results in the Transponder antenna right below the panel and com/nav antennas in the aft fuselage which works out.


Michael Sausen
RV-10 #352 Working on Fuselage

--


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Tdawson(at)avidyne.com
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PostPosted: Thu Mar 16, 2006 8:51 am    Post subject: Antenna Spacing Reply with quote

Underneath the right front seat works pretty well for transponder antenna . . .
 
TDT
40025
Firewall forward
 

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of RV Builder (Michael Sausen)
Sent: Thursday, March 16, 2006 11:31 AM
To: rv10-list(at)matronics.com
Subject: RE: Antenna Spacing

 
 Generally speaking, you also want the shortest run of cable possible between the transponder and antenna.  This usually results in the Transponder antenna right below the panel and com/nav antennas in the aft fuselage which works out.


Michael Sausen
RV-10 #352 Working on Fuselage

--


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wcurtis(at)core.com
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PostPosted: Thu Mar 16, 2006 2:32 pm    Post subject: Antenna Spacing Reply with quote

[quote]Underneath the right front seat works pretty well for >transponder antenna . . . Those are microwaves! The aircraft skin is probably enough shielding but I'll move mine a bit further forward in the tunnel between the exhaust and away from passenger butts. William Curtis http://wcurtis.nerv10.com/

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jesse(at)itecusa.org
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PostPosted: Thu Mar 16, 2006 3:41 pm    Post subject: Antenna Spacing Reply with quote

I am going for the transponder on the belly as far forward as I can in the tunnel, then the COM’s under the pilot and co-pilot seats.  I haven’t measured yet, but that would be great if the distance is long enough.  I am just going to have to deal with the trouble of getting around the other stuff there, and make sure to stay away from the controls.
 
Do not archive.
 
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org (jesse(at)itecusa.org)
www.itecusa.org
 
I'm in Ecuador right now and should be back in the country by the end of May.  You may call me at 352-505-1899 and leave a message that I can check from down here.  Any I-TEC questions can be directed to the I-TEC office at 352-465-4545.


From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of William
Sent: Thursday, March 16, 2006 5:29 PM
To: RV10-List(at)matronics.com
Subject: RE: Antenna Spacing

 
Quote:
Underneath the right front seat works pretty well for
>transponder antenna . . .


Those are microwaves! The aircraft skin is probably enough shielding but I'll move mine a bit further forward in the tunnel between the exhaust and away from passenger butts.


William Curtis
http://wcurtis.nerv10.com/


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rv10es(at)earthlink.net
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PostPosted: Fri Mar 17, 2006 3:58 am    Post subject: Antenna Spacing Reply with quote

This is the arrangement I have on my RV6 and now the 10.  I have not detected any problems with the 6.
do not archive

rob kermanj
rv10es(at)earthlink.net (rv10es(at)earthlink.net)



On Mar 16, 2006, at 6:39 PM, Jesse Saint wrote:
Quote:

I am going for the transponder on the belly as far forward as I can in the tunnel, then the COM’s under the pilot and co-pilot seats.  I haven’t measured yet, but that would be great if the distance is long enough.  I am just going to have to deal with the trouble of getting around the other stuff there, and make sure to stay away from the controls.
 
Do not archive.
 
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org (jesse(at)itecusa.org)
www.itecusa.org
 
I'm in Ecuador right now and should be back in the country by the end of May.  You may call me at 352-505-1899 and leave a message that I can check from down here.  Any I-TEC questions can be directed to the I-TEC office at 352-465-4545.
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf OfWilliamSent: Thursday, March 16, 2006 5:29 PMTo: RV10-List(at)matronics.com (RV10-List(at)matronics.com)Subject: RE: Antenna Spacing

 
Quote:
Underneath the right front seat works pretty well for >transponder antenna . . .Those are microwaves! The aircraft skin is probably enough shielding but I'll move mine a bit further forward in the tunnel between the exhaust and away from passenger butts.William Curtishttp://wcurtis.nerv10.com/


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