REFLECTOR: ELT

[Jim Agnew]

Al, take a look at my copper foil antenna on my spar.  It is designed for both 121.5 & 243 MHZ and I use it with an AK450.  As Jim Weir said if the spar breaks you don't need the ELT.  Copper foil and some ferrite cores.  The two antennas cover the two frequencies and are vertically polarized.
 
Jim

 
James F. Agnew Jim_Agnew_2 at Yahoo.Com Tampa, FL Velocity 173 Elite Aircraft Completed & Flying 


----- Original Message ----
From: Robin Ream <robinream at earthlink.net>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Monday, January 23, 2006 6:51:19 PM
Subject: Re: REFLECTOR: ELT


Hi Al,
 
    Don't you have a metallic fire protection sheet on your firewall about that size?  Maybe that could work?
 
Robin
_____________________
----- Original Message ----- 
From: Al Gietzen 
To: reflector 
Sent: Monday, January 23, 2006 5:42 PM
Subject: REFLECTOR: ELT


During construction of my plane I never gave much thought to the ELT installation; thinking that I would eventually mount it somewhere behind the vanity bulkhead. No wires to pull no big deal.
 
I bought an Ameri-King AK450 a few months ago, and put it aside.  I opened it today to do the installation.    It has a Remote Unit that should be mounted in the panel, and a cable that goes to the transmitter unit.  Oops; I should have dealt with this long ago before my panel was nicely painted and completed, and the wire bundles were covered by the nice upholstery panels.  And it needs to be installed in a specific orientation on major structure. Hum-m-m; those places are pretty well used up. 
 
One big concern the instructions say that the antenna (if mounted in a non-metallic airplane) needs a ground plane that is a minimum of 36 in diameter!  How can that be achieved?
 
Im sure once I get over Installation Shock I can deal with this, but suggestions will be appreciated.
 
I understand this can be put off until after completion of the 40 hour test program, but it probably wont be any easier then.
 
Thanks,
 
Al
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