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Discussion of precise time and frequency measurement

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Re: [time-nuts] Ultralink

HM
Hal Murray
Fri, Apr 13, 2018 10:09 PM

The modular cable connecting the receiver to the decoder is wired  straight
through, not reversed as most telephone cables are.  My fear is  that
someone (like me) might at one point have used a reverse cable and  thus put
reverse polarity on the board; I don't see any reverse power  protection.

Many thanks for that comment.  I hadn't checked that before.

My cable was reversed.  A new/correct one arrived today.  The meter is
working.  With a bit of practice, I'll bet I could read the data pattern off
the wiggles.

But after an hour, the LCD still shows time-since-power-up rather than date
and time.

--
These are my opinions.  I hate spam.

jra@febo.com said: > The modular cable connecting the receiver to the decoder is wired straight > through, not reversed as most telephone cables are. My fear is that > someone (like me) might at one point have used a reverse cable and thus put > reverse polarity on the board; I don't see any reverse power protection. Many thanks for that comment. I hadn't checked that before. My cable was reversed. A new/correct one arrived today. The meter is working. With a bit of practice, I'll bet I could read the data pattern off the wiggles. But after an hour, the LCD still shows time-since-power-up rather than date and time. -- These are my opinions. I hate spam.