[Scan-DC] Aviation route frequency -- 129.45 MHz

[Larry Van Horn]

>  If you have other specific route frequencies that are used for
> equally interesting comms, I would be interested to hear about them!

Morning Andy and all,

You can get a complete set of the freqs used by the ARINC VHF Radio Network 
by downloading the coverage map I have posted on my personal blog. Just 
right click on the map, do a save as and open with your favorite pic viewing 
program.

http://monitor-post.blogspot.com/2009/04/conus-arinc-vhf-radio-network.html

73 de El Jefe

Larry Van Horn, N5FPW
Brasstown, NC USA
MT Assistant/Review Editor
Milcom/What's New Columnist
Milcom Monitoring Post at
http://mt-milcom.blogspot.com/

----- Original Message ----- 
From: "Andrew Clegg" <w4jecom at w4je.com>
To: <scan-dc at mailman.qth.net>
Sent: Tuesday, April 07, 2009 1:21 PM
Subject: [Scan-DC] Aviation route frequency -- 129.45 MHz


>A couple of weeks ago I discovered a cool aviation route frequency, 129.45
> MHz. It is licensed to AIRINC, with a base station at National. Planes in
> route use this frequency to get phone patches to an aviation services
> company in San Francisco. It is used for a variety of purposes, but one of
> the more interesting (and more frequent) uses is to report problems with
> passengers, such as medical issues. On this frequency, the pilots can be
> patched through to a company called "Medstat" that has doctors on call 
> 24/7
> who can talk to the pilot and assess the seriousness of the medical 
> issues,
> and help decide whether the pilot needs to divert for a quick landing or
> have paramedics waiting upon a scheduled arrival.
>
> Over the last two weeks, I have been recording this frequency 
> automatically
> using Scanrec. I get about one hour or so of activity for each 24 hours of
> recording. From where I am I can hear the base station at National, and
> usually I can also hear the planes. However, even if you are not within
> reach of National, you could probably hear the plane side of the
> conversation for a couple hundred miles, and it is usually the plane side
> that is the more interesting ("we are unable to get a pulse; passenger is
> unconscious;" etc.).
>
> So far I have heard several serious medical issues, two unruly passenger
> incidents, and one pilot that was getting worried because his main and
> alternate airports were both rerouting due to weather and the plane's fuel
> was running low (they ended up being routed to Allentown PA instead of
> Boston).
>
> Anyway, for those who haven't heard this one before, it can be quite
> interesting. If you have other specific route frequencies that are used 
> for
> equally interesting comms, I would be interested to hear about them!
>
> Andy
>
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