[time-nuts] RFTG-m-XO KS-24019 RS-422 Query
bill at iaxs.net
Tue Apr 28 02:04:54 EDT 2015
Have the subject RFTG unit. Bought an RS-422 to USB converter, found a
simple terminal emulator (PuTTY), and scoured KO4BB's site.
Discovered that the pins for the otherwise unlabeled "RFTG-m RS-422
INTERFACE" drawing were reversed, and that you don't connect R to R and
T to T. The diagnostic software on KO4BB's site will not run on modern
Windows systems (sorry, I used Unix in the eighties but it's all windows
Every second, PuTTY shows the string :110000000000000000E109FB with the
initial Failed status and :100000000000000000E109FA when the green light
comes on after about 20 minutes. Does anyone know how to decode that
string (presumably hex)? The strings were copied from the PuTTY screen
with ^C, not manually transcribed.
The RFTG unit does not acquire GPS lock after 32 hours. I had hoped that
the status message would tell me why it isn't locked.
Note that this is the 1998 version, not the newer ones.
Any clues to documentation appreciated.
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