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Date: Thu, 18 Aug 2011 07:41:20 -0400
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Subject: Re: [LML] handheld radio panel plugin
From: Colyn Case <colyncase@earthlink.net>
In-Reply-To: <list-5094845@logan.com>
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References: <list-5094845@logan.com>

David,

My solution is I have a primary panel mount and a secondary panel mount =
and a portable.
The primary panel mount has minimum connectors all the way to the belly =
mounted antenna.
The secondary panel mount goes through a connector accessible to the =
pilot and thence to the inferior antenna.
If I were to have a total power loss or both panel mounts died, I would =
manually uncouple the connector on the secondary and plug in my portable =
leaving the panel mount side of the connection dangling.

Rationale:
My primary probably isn't going to die or lose power so I would like to =
optimize its performance.  Therefore I don't add any 1/2 db loss =
connectors in the path for that one.

My secondary has an antenna that is not as good as the primary but way =
better than a portable.    I'll take the 1/2 db loss for the extra =
connector on the reasoning that a little worse than bad nearly equates =
to bad.

I've eliminated huge losses of a passive splitter and complexity of a =
switch for a function that will probably never be used.

Colyn

On Aug 17, 2011, at 7:43 AM, Dr. Weinsweig wrote:

> hi all,
>=20
> anyone have experience with a plugin(switch) for a handheld radio to =
go through the external antenna ie for a backup to a radio failure.  in =
the spirit of redudancy, i was thinking of adding this to my panel as =
early on i had a stuck mike(fixed with replacement of the audio panel) =
and i thought this may be a worthwhile backup.  however, upon looking =
further into this, apparently it may rob the panel mounted radios of =
db's and i have read that when it is used it may damage the panel =
mounted radios. fact or fiction?  is it worthwhile? downsides?
>=20
> thanks,
>=20
> david weinsweig
> lancair propjet n750dw
> weinsweigd@gmail.com=20
> 304-633-5221
>=20
>=20
> --
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