[Milsurplus] Mystery Project-- Can you ID the Radio?
John Hutchins
olegerityincj at austin.rr.com
Fri Jan 29 22:21:05 EST 2010
All -
And the same fate can be said for the light house [-} except that when
the light houses were shutdown
they became prime real estate in scenic locations. I wonder about the
antenna fields used by the LORAN stations.
They may make a great ham station location, I have an idea.....hmm....
Hutch
On 1/29/2010 8:50 PM, Mike Morrow wrote:
>> I also keep two useless APN-9.
>>
> I still have the one I purchased from John Meshna Co. in 1976.
> It represents a fairly important and long-used radio navigation
> set. The design is admirable for its era, which I believe includes
> the very late WWII period.
>
> The only ship on which I served that used the R-65/APN-9 was the
> Hr.Ms. Amsterdam (Destroyer D819, Royal Netherlands Navy), in 1973.
> But it wasn't used in the north Atlantic...there, the Decca Navigator
> System was far better than LORAN A.
>
> I'd like to add the AN/APN-9 to my AN/ARC-8 (AN/ART-13A, AN/ARR-11)
> if I can ever come up with the mount and connectors. I've got the
> CU-92/APN splitter. Some of that is shown on some AN/ARC-8 wiring
> diagrams.
>
> In my dreams I'd like to have an AN/ARC-21, paired with the AN/ARR-36
> aux MF/HF receiver and the AN/APN-70 LORAN A set! That's the next
> generation of USAF MF/HF communications and LORAN gear after the
> AN/ARC-8 and AN/APN-9.
>
> It looks like the various LF hyperbolic radio navigation systems
> have run their course. The last three were ALL displaced by GPS:
>
> LORAN A Shut down in 1980 (in North America)
> OMEGA Shut down in 1997
> DECCA Shut down in 2000
> LORAN C To be shut down in February 2010
>
> GPS also displaced the U.S. Navy's TRANSIT/NAVSAT system, whose
> principal purpose for more than 32 years was to provide position
> information to western ballistic missile submarines. Its navigation
> function ceased in 1996.
>
> I just hope the GPS system is never disrupted...there won't be much
> in the way of backup radio navigation systems a few weeks from
> now, when LORAN C dies. (I'm ignoring other sat nav systems that
> are run by non-western countries.)
>
> Mike / KK5F
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