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Comm Antenna

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cooprv7(at)yahoo.com
Guest

Posted: Tue Oct 15, 2013 1:33 pm Post subject: Comm Antenna

I have been using a simple bent whip antenna on the bottom of my RV-10 for 7 years, but the signal has been getting weaker and I'm looking at upgrading.  I looked in the archives but seemed to miss a discussion that I'm sure has been made, but I was wondering how much better antennas like COMANT's CI-122 are over the significantly cheaper bent whip?  I'm using the low drag antenna on the cabin roof for COMM 2 and it works great.



Thanks,

Marcus

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flying-nut(at)cfl.rr.com
Guest

Posted: Tue Oct 15, 2013 3:10 pm Post subject: Comm Antenna

On 10/15/2013 5:28 PM, Marcus Cooper wrote:

 	  Quote: 	
		   



 I have been using a simple bent whip antenna on the bottom of my RV-10 for 7 years, but the signal has been getting weaker and I'm looking at upgrading.

The bent whip antennas don't get 'weaker' ..... unless they're filthy.  
	


I think something is deteriorating .... most likely a kink or bend in 

the coax to the antenna or the connection at the antenna.  Putting an 

expensive antenna on the bad coax won't improve things much.

Linn



 	  Quote: 	
		      I looked in the archives but seemed to miss a discussion that I'm sure has been made, but I was wondering how much better antennas like COMANT's CI-122 are over the significantly cheaper bent whip?  I'm using the low drag antenna on the cabin roof for COMM 2 and it works great.

It's a lot of work but you might swap antennas to see what's up.
	


Linn

 	  Quote: 	
		  

 Thanks,

 Marcus



 -----

 No virus found in this message.

 Checked by AVG - www.avg.com

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Bob Turner

Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA

Posted: Tue Oct 15, 2013 3:17 pm Post subject: Re: Comm Antenna

Getting weaker? Antennas don't wear out in 7 years. Is it relatively clean? I would look under the antenna for oxidation or corrosion.

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_________________
Bob Turner
RV-10 QB

aerosport1

Joined: 07 Nov 2007
Posts: 231

Posted: Tue Oct 15, 2013 3:44 pm Post subject: Comm Antenna

Lynn 

Have you had the com checked to see if it is ok. I had an issue with my 430 

Nav portion. Single was getting weaker

And weaker. Changed antennas checked everything spent 6 months chasing this and it turned out to be the

430. The sad thing it was still in warranty when it started but by the time 

I found it, it was out by 3 months Garmin still charged me 1000.00 to repair.

Geoff Combs

Sent from my iPhone

Geoff Combs

Aerosport Modeling

On Oct 15, 2013, at 7:02 PM, Linn Walters <flying-nut(at)cfl.rr.com> wrote:

 	  Quote: 	

 On 10/15/2013 5:28 PM, Marcus Cooper wrote:

> 

> 

> I have been using a simple bent whip antenna on the bottom of my RV-10 for 7 years, but the signal has been getting weaker and I'm looking at upgrading.

 The bent whip antennas don't get 'weaker' ..... unless they're filthy.  I think something is deteriorating .... most likely a kink or bend in the coax to the antenna or the connection at the antenna.  Putting an expensive antenna on the bad coax won't improve things much.

 Linn

>   I looked in the archives but seemed to miss a discussion that I'm sure has been made, but I was wondering how much better antennas like COMANT's CI-122 are over the significantly cheaper bent whip?  I'm using the low drag antenna on the cabin roof for COMM 2 and it works great.

 It's a lot of work but you might swap antennas to see what's up.

 Linn

> 

> Thanks,

> Marcus

> 

> 

> 

> 

> 

> 

> 

> -----

> No virus found in this message.

> Checked by AVG - www.avg.com

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_________________
Geoff Combs
RV-10 QB N829GW
Flying 500 hrs
40033

cooprv7(at)yahoo.com
Guest

Posted: Wed Oct 16, 2013 6:36 am Post subject: Comm Antenna

Thanks for all of the responses, pretty consistent answers so I'll check out the connections.  I've been doing some touch up work in preparation for possibly putting the airplane on the market as 4 seats just isn't enough anymore and it seemed like a good idea to upgrade the antenna if it would make a difference, but it sounds like it really wouldn't.  Hate the idea of ever letting the machine go, but the mission seems to be changing a bit 



Thanks,

Marcus

do not archive

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

On Tue, 10/15/13, Bob Turner <bobturner(at)alum.rpi.edu> wrote:



 Subject: Re: Comm Antenna

 To: rv10-list(at)matronics.com

 Date: Tuesday, October 15, 2013, 7:17 PM

 

 

 "Bob Turner" <bobturner(at)alum.rpi.edu>

 

 Getting weaker? Antennas don't wear out in 7 years. Is it

 relatively clean? I would look under the antenna for

 oxidation or corrosion.

 

 --------

 Bob Turner

 RV-10 QB

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=410654#410654

 

 

 

 

 

 

 

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