It was a dual-mode RADAR: TFR/GMR combo used in
the Panavia Tornado aircraft.

To quote the sales literature:

  "Designed for all weather bomb delivery in the
   European theater."

TFR allowed nap-of-the-earth flight and the GMR allowed
for navigation/target ID in pea-soup flying conditions.

This aircraft was used in the Gulf war to bomb airfields.

Jim

----- Original Message -----
From: "Eoin Ross" <eross@CHEMSTATION.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, February 14, 2002 8:13 AM
Subject: Re: [EE]: bad oscilloscope?


> Sounds more like the military, can't imagine ground mapping radar being in
a civilian plane ... but maybe its used for ground proximity warning as well
>
>  Is it time to go OT? : )
>
> >>> apptech@CLEAR.NET.NZ 02/14/02 05:38AM >>>
> >    "> Just convert the 3 pin wall plug to a 2 pin
> >     >wall plug.  (lift the ground pin)"
> >
> > We had a young tech who did this to measure
> > the grid drive to a small TWT (traveling wave
> > tube) one day (p/o the GM (Ground Mappping) RADAR
> > in a Panavia Tornado Nose RADAR) - the only problem
> > was the drive was WRT (with respect to) the cathode
> > of the TWT - and the cathode sat around -3000 VDC ...
> > the Tek 475 *did* stand off this voltage (the spec
> > states something like 500 V or so) ...
> >
> > Normally a special isolation transformer and
> > insulated 'cage' for the scope was used - someone
> > had not informed this young man as part of his
> > training however.
>

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