[Milsurplus] Mystery Project-- Can you ID the Radio?

[Michael Bittner]

I missed using the APN-9, but did use the APN-4 in the Martin PBM-5. 
Besides its use for navigation, it was an inadvertant ignition analyzer. 
Total of 28 spark plugs on that bird and they all showed up on the LORAN 
scope.  The trick was finding the LORAN pips amongst all the grass created 
by the spark plugs.  Surplus conversion manual has directions for converting 
the APN-4 to a 160m receiver.   Mike W6MAB


----- Original Message ----- 
From: "D C *Mac* Macdonald" <k2gkk at hotmail.com>
To: <asmagal at fc.up.pt>; "Military Surplus Mail List" 
<milsurplus at mailman.qth.net>
Sent: Friday, January 29, 2010 11:35 AM
Subject: Re: [Milsurplus] Mystery Project-- Can you ID the Radio?


>
> Not much good for anything other than parts, maybe.
> It's for the old Loran-A service that was in the
> 160 meter hamband and was decommissioned sometime
> in the mid-1980s, if IIRC.
>
> I was trained on using them in USAF Navigator School
> back in 1962!
>
>
> Mac, K2GKK/5
> OKlahoma City
>
>
>
>> Date: Fri, 29 Jan 2010 18:20:34 +0100
>> From: asmagal at fc.up.pt
>> To: milsurplus at mailman.qth.net
>> Subject: Re: [Milsurplus] Mystery Project-- Can you ID the Radio?
>>
>> It is the R-65/APN-9 Loran-A receiver.
>>
>> Antonio
>> CT1TE
>>
>> Quoting "B. Smith" <smithab11 at comcast.net>:
>>
>>> The latest "Mystery Project" can be found at:
>>> (http://home.comcast.net/~smithab11/APN%20Bench/APN%20Bench.htm)
>>>
>>> Anyone that can ID the set will get an honorable mention on the "Mystery
>>> Project Page".
>>>
>>> 73
>>>
>>> breck k4che
>>>
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>>
>>
>>
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