Here's the rear of the T-827K in case it contains any hints as to heritage
https://www.navy-radio.com/xmtrs/urt23/t827k-2011-03.jpg
This was a unit that showed up on eBay last year along with a batch of J models. Those are the only photos I have seen.
1992 contract date and is 48-63 Hz, unlike the earlier T-827 models which were 48-450 Hz.
https://www.navy-radio.com/xmtrs/urt23/t827k-2011-01.jpg
https://www.navy-radio.com/xmtrs/urt23/t827k-2011-02.jpg
Nick England K4NYW
www.navy-radio.com


On Tue, Nov 2, 2021 at 11:36 AM W2HX <w2hx@w2hx.com> wrote:

Although I have no data to support this, I suspect the T-827K was a militarized/ruggedized version of the RF-1310. Just the front panel has similarities with two displays, one for freq/channel and the other for operating parameters etc. I am sure there are plenty of differences, but I wonder what the insides look like on the “K”

 

73 Eugene W2HX


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