From: Sky2high@aol.com
Message-ID: <0.71f86f1a.25a22fca@aol.com>
Date: Mon, 3 Jan 2000 12:00:58 EST
Subject: Apollo SL Radios
To: lancair.list@olsusa.com
Mime-Version: 1.0

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Angier is on the right wavelength (no pun intended) -- I have installed the 
UPS (Apollo) SL60 (GPS TSO enroute, Comm) in my Challenger II ultralight.  It 
not only contains a 2 place intercom, but you can also choose to monitor the 
standby frequency, such as ATIS.  

If  the active frequency receives a transmission, the monitored standby is 
blanked out.  This is better than two comms, monitoring ATIS on the second 
thru the audio panel, since usually it would be necessary to manually switch 
off the second comm selection to hear the incoming transmission on the first.

Audio sampling techniques are used for the monitored frequency, so the audio 
is not perfect, but it is usable.  BTW, the intercom is inactive during 
monitoring.

The squelch and intercom VOX parameters are digitally set thru the "system" 
function on the unit.  The intercom works great even when the Rotax is 
turning 6300 RPM.  The radio is excellent and is connected to a bent whip 
belly-mounted with a 14" square ground plane shared with the transponder 
antenna.

For more info, goto    http://www.upsat.com/prodovr.html

If only these "slimlines" were around when I built the Lancair, I certainly 
would have used them instead of  Terra. 

I also use the Rocky Mountain Micro-Encoder for all the air-data.  The 
micro-encoder feeds this information to the GPS so that winds aloft are just 
one button push.  Sometimes I look out the window, too.

Scott Krueger
N92EX, etc. 

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