[Milsurplus] AN/ARN-1 vs. AN/APN-1

[WA5CAB at cs.com]

Group,

Without intending to get into any position of saying what was or was not used 
as the RF connector on any particular AN/ARN-1 (because I have never seen any 
of them), I'll say that (a) I have now ID'd at least four different RF 
connector groups or families based upon the AN connectors (in shell size 12S, 14S, 
16 and 18).  SO-246 (AN3102-12S-4P) in particular, aside from gender, would 
look from the side very much like a TNC.  All but one group (the 18 shell size) 
had various PL- and SO- Signal Corps nomenclature at least as early as 11/43.  
Most also had British and Navy numbers.  And (b) according to my database (I 
didn't record the original source), there was an RT-2/ARN-1 and an RT-3/ARN-1, 
both described as single-range to 4000 feet.

In a message dated 6/11/2004 6:01:19 PM Central Daylight Time, jfor at quik.com 
writes: 
> Well, aside from the one or two range issue, which appears to be 
> uncontested, at
> least one of the ARN-1s used non-UHF connectors.
> 
> -John
> 
> Mike Morrow wrote:
> 
> >>>The difference is  the RF connectors (the APN-1 uses UHF, the ARN-1
> >something wierd,
> >>>akin to TNC) and the APN-1 has 2 altitude ranges, the ARN-1 only one.
> >>
> >>Are you sure about the connectors? The few AN/ARN-1s I have seen have all
> >>used standard UHF connectors. Even the AYD (precursor to the
> >>AN/ARN-1) uses UHF connectors. Maybe you have something weird?
> >
> >I just dug out my RT-3/ARN-1 (NXs-2424) and I see that all of its
> >connectors, including RF, are the same as those on my RT-7/APN-1 units.
> >Both use a PL-259 type of RF connector.
> >
> >My ARN-1 and both of my APN-1 units appear to be US Navy procurement.
> >
> >73,
> >Mike / KK5F
> 
> 

Robert & Susan Downs - Houston
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