[ARC5] AN/APX-1 and AN/APX-2 IFF systems

[Kenneth G. Gordon]

On 2 Jan 2012 at 12:15, WA5CAB at cs.com wrote:

> According to AN 08-30APX2-2 (Operator's and Installation Manual) on the 
> AN/APX-2A, you probably have a correctly fitted out RT-24/APX-2.  I base this 
> on the fact that RT-24A/APX-2 also used TN-8/APX-1.

If I am not mistaken, those TN-* tuning units were usable in several different units, including 
that very large Navy receiver made by Scott, which (if I remember correctly) was the RDO.

I have a number of those tuning units for various frequency ranges up to something like 10 
GHz, maybe even 30 GHz.

As I remember it (I am presently in Texas and cannot go check) all my TN-* units were 
labeled, TN-*/APX-*, where the * means some number or number-letter combo.

I also have two RDOs...

Dunno what I am going to do with them, but I have them...

Ken W7EKB