[Milsurplus] 1980's Navy R-390A's

[Mike Morrow]

>I have a 1986 document on the radio equipment aboard the Navy's FFG-7
>class frigates.  Shown on an equipment layout amongst the R-1051's
>and other modern stuff is an R-390A

US submarines still had R-390 units aboard at least until the late 1960s,
but those I saw in the mid-1970s (including my SSBN-629) had units of the
the R-1051/T-827/RT-618/AM-3007 generation, and no R-390s.

The USS Intrepid (CVS-11) when I was aboard in 1971 still had some R-390
units, but also had units of the R-1051/T-827/RT-618/AM-3007 generation.

Mike / KK5F