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[aprssig] APRS antenna for an airplane

w2kb at comcast.net w2kb at comcast.net
Sat Sep 16 14:48:36 UTC 2006


A previous owner of my '76 Cessna Cardinal had an extra aircraft antenna mounted on the belly with a cable terminated with a BNC connector in the cockpit so that an aviation handheld could better be used as a backup should both the regular transceivers fail.  I recently tried the antenna with a Kenwood D700 running at the lowest transmit power setting and it works fine.  (I don't want to trim the antenna length to better preserve its backup use.)

73,  ---Ken W2KB  N16019

-------------- Original message -------------- 
From: Earl Needham <needhame1 at plateautel.net> 

> At 01:15 AM 9/16/2006, Andrew Rich wrote: 
> >Any suggestions ? 
> 
> I've used an HT with a rubber duck to check into a repeater net 
> 200+ miles away, so you'll be able to get SOME results with almost anything. 
> 
> The suggestion to use an inspection panel is a good one, but if 
> CASA is a problem, you could simply have another aviation antenna added and 
> use that. It would help if you could get it tuned for 144 instead of 120, 
> but I suspect it would work in either case as long as your transceiver 
> could tolerate the mismatch. 
> 
> BTW, if you normally fly pretty high AGL, then mount the antenna 
> on the belly. However, if you normally fly low, like a crop duster, you 
> might be better served by mounting the antenna on top. 
> 
> 7 3 
> Earl 
> 
> 
> Earl Needham, KD5XB, Clovis, New Mexico DM84jk 
> 
> 
> 
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