REFLECTOR: Transponder Antenna (OWT)

[Laurence Coen]

This is one of those things that been repeated so often that it gets 
accepted as a fact.  The peak power is 175 W to 200 W but the mean power at 
the maxium reply rate is LESS than your cell phone.  How do I know this?  I 
measured it with a field strength meter.

Larry Coen
N136LC

----- Original Message ----- 
From: "lawrence epstein" <ljepstein at hotmail.com>
To: <reflector at tvbf.org>
Sent: Tuesday, August 14, 2007 10:41 PM
Subject: Re: REFLECTOR: Transponder Antenna


>I have heard repeatedly that teh Transponder is a high output transmission
> and the antenna should be located as far away from the occupants as
> possible.
>
> Larry E.
>
>
>>From: "Emanuel Lewis" <elewis8 at nycap.rr.com>
>>Reply-To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>>Subject: REFLECTOR: Transponder Antenna
>>Date: Wed, 15 Aug 2007 05:45:04 -0400
>>
>>O 540I wrote a few weeks ago asking about best location for a transponder
>>antenna.  I have a new "sharkfin" type antenna I plan to locate under the
>>copilot seat.  Does anyone have information/experience about the 
>>difference
>>in performance if the antenna penetrates the fuselage so that its surface
>>is outside vs. mounted inside the fuselage?  Also, how about the size of
>>the aluminum plate that serves as a ground plane?
>>Thanks,
>>Manny Lewis
>
>
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