[time-nuts] Help with BG7TBL 2015-07-08 GPSDO

[Gary Woods]

On Sat, 1 Feb 2020 12:24:24 -0600, you wrote:

>Hmmm. I do not have any of that equipment, but I do know the RS232
>interface pretty well. It may be that you need to cross over the
>connections with RX and TX. Do you have a null modem type device handy?
The GPSDO says it only needs send and receive data; no handshake. I've
got a break-out adapter in the line passing only those and ground.
Reversing t/r doesn't help.
Gonna scope the interface chip's ins/outs, but right now the cellar
hamshack/shop/man cave is just too (*^&*%* cold!