[Scan-DC] 233.75, 249.95, 268.65 & 360.4

Wed, 06 Aug 2003 19:06:33 -0400

   What you need is a videoscanner to monitor any aircraft video telemetry
downlinks.  I have one.  It works great and is a lot of fun to use.  Email me if
you are interested in more details.

John,

> Yep it seems so. I had posted on MILCOM as well. I was hoping somebody out
> at Edwards might be able to chime in and provide some input. I figure it is
> flight test associated and might also be used out there. Unfortunately I
> received no additional info on it so I will unlock them periodically and
> check them out when time permits.
>
> I did get one response that said the navy referred to this type of
> transmission as a "WHITE RAT".
>
> Have a good one,
>
> Jeff
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of john wilson
> Sent: Wednesday, August 06, 2003 1:57 PM
> To: Jeff
> Cc: Scan-DC
> Subject: Re: [Scan-DC] 233.75, 249.95, 268.65 & 360.4
>
>   Since that is an aircraft test facility the comms probably are
> deliberately
> configured that way.
>
> Jeff wrote:
>
> > Folks,
> >
> > I am fishing for some thoughts on this one. In the past I have heard audio
> > on this freq that I have chosen to call "COCKPIT RECORDER". I'll explain:
> > Usually the comms seem to be fed from a mic that appears to be constantly
> > on. I would not go as far to say it is a HOT MIKE because you can audibly
> > hear every little background noise in the cockpit, like the alarms, engine
> > noise, you can even hear the voice coming over the radio in the
> background.
> >
> > In the past, the only comms I have heard on this one were from the cockpit
> > of the FA-18 E/Fs at PAX River undergoing flight test. To the best of my
> > knowledge, I personally can't say I have ever heard any other flight test
> > program use this type of transmission.
> >
> > For lack of knowledge on what this is for, over time, through listening I
> > have made the following educated guess. I am "assuming" that since
> Military
> > fighters do not have a "Black Box", that they use this to transmit all
> > cockpit audio to a voice recorder on the ground for various purposes, just
> a
> > guess.
> >
> > Some additional detail on it is that I can hear the cockpit talk to
> "DATA",
> > (the flight test coordinator) and I can hear Data's response. Then I can
> > hear the pilot switch to PAX ground to advise of engine start-up and hear
> > grounds response as well. And it goes this way throughout the test flight.
> I
> > can hear the pilot switching freqs but can hear both sides of audio no
> > matter which freq he switched to.
> >
> > I have several freqs noted for the same type of use at PAX 233.75, 249.95,
> > 268.65 & 360.4. Today I had 2 different flight tests doing this on 268.65
> &
> > 249.95. I have a lot of audio on it and will review again later and take
> > notes and repost anything interesting.
> >
> > Anyway, I was wondering if anyone has ever heard comms like this and might
> > be able to offer up some additional thoughts on this from past experience.
> > It is kind of neat to listen to because you can listen to all comms from
> > beginning to end for a particular flight with on one freq, pretty cool.
> :-)
> >
> > Have a good one,
> >
> > Jeff
> >
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