On Sun, 9 Feb 2020 18:10:36 -0600, you wrote:
>I'm just curious - what piece of kit
>is the MAX3232 installed in? I'm trying to figure out is it is the DCE or
>the DTE end.
It's a Chinese BG7TBL GPSDO, using UBlox gps module and oscilloquartz
OCXO. DCE, with 9-pin serial connector and no
Great news! And even better sleuthing. I'm just curious - what piece of kit
is the MAX3232 installed in? I'm trying to figure out is it is the DCE or
the DTE end.
Thanks!
-Pat (KG5YPQ)
On Sun, Feb 9, 2020 at 10:15 AM Gary Woods wrote:
> Once I found the datasheet for the RS-232 interface, I
Once I found the datasheet for the RS-232 interface, I found the TX
data was checking in but not out, and the circuitry that makes -V in
the MAX3232 wasn't working.
Replaced it * and all is well; Lady Heather is giving me nice maps of
satellites passing by, and 2nsec excursions on a graph. So now
