[nrv-hams] Clues!! Unknown military type radios

[Cam Coble]

Great info, thanks Gene!
Off to read up!
73
--
Cam - W4XXV

On Wed, May 8, 2019 at 6:50 PM <bats at starpower.net> wrote:

> Hi, Cam & Tom!
>
> Cam - Good AN reference site!
>
> Short Story - Likely not useful for current Ham activities, but certainly
> qualify as a) unique collectables, or b) boat anchors?  Like too many
> similar items in our basements!  ;-)
>
> These look like airborne radar receivers used in electronic intelligence
> (ELINT) or counter measures (ECM) platforms, in this case the TBM Avenger
> Torpedo Bomber airframes.
>
> http://www.designation-systems.net/usmilav/jetds/an-apr2aps.html
>
> AN/APR-1  40-3300 MHz Radar Intercept Receiver; manufactured by Galvin;
> used in TBM-3S
>
> Galvin is arguably the oldest and original mobile radio manufacturer,
> starting pre-WW2, and likely not in business anymore.  Because they became
> Motorola!  Yep, Galvin invented the predecessors to our mobile radios!
>
> https://en.wikipedia.org/wiki/Motorola#History
>
> About that plane family::
>
> https://en.wikipedia.org/wiki/Grumman_TBF_Avenger
>
> TBM-3S - TBM-3 conversion as an anti-submarine strike version.  So likely
> had an ELINT receiver to capture the sub's RADAR when surfaced, as a handy
> beacon for bombing!
>
> See other variants with ELINT and similar roles, which might also be the
> source of these boxes.  There had been a lot of box swapping over the
> decades....
>
> TBM-1E - TBM-1 conversions with additional electronic equipment.  (vague
> usually means intel..?  ELINT?  ;-)
>
> TBM-3Q - TBM-3 conversion for electronic countermeasures with large
> ventral radome.  (ECM)
>
> TBM-3W - TBM-3 conversion as the first ship based airborne early warning
> control and relay platform with APS-20 radar in ventral radome.  (might
> include ELINT or ECM roles?)
>
> OK, wondering when that 3W "is due???"   ;-)
>
> https://en.wikipedia.org/wiki/File:TBM-3W_at_NAS_Patuxent_River_c1946.jpg
>
> Enjoy!
>
> Gene :)
> N3EV
>
>
> ----- Original Message -----
> From: Tom Kington via nrv-hams <nrv-hams at mailman.qth.net>
> To: NRV-Hams: A mailing list for members of the New River Valley (VA)
> Amateur Radio Club. <nrv-hams at mailman.qth.net>
> Sent: Wed, 08 May 2019 18:14:22 -0400 (EDT)
> Subject: Re: [nrv-hams] Unknown military type radios
>
> http://www.designation-systems.net/usmilav/jetds/an-apr2aps.html
>
> Best regards,
> Thomas Kington Jr
>
> Sent from a mobile device.
>
> > On May 8, 2019, at 10:39 AM, Cam Coble <cam at doubleclickdata.com> wrote:
> >
> > Anyone have any ideas what these are?
> >
> >
> https://roanoke.craigslist.org/clt/d/military-radio-rare-find-over-70-years/6877464103.html
> >
> >
> > --
> > Cam - W4XXV
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