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MFJ-148RC


 

My MFJ-148RC has stopped receiving the tiime signal from WWV and thus the time is not kept updated.? Anybody else have a similar problem ?

Jimmy
W4MUF


 

Jimmy . . .


On Tue, 25 Jul 2023 11:17:34 -0700, "Jimmy Moser W4MUF" <wxgeek@...>
wrote:

My MFJ-148RC has stopped receiving the tiime signal from WWV and thus the time is not kept updated.? Anybody else have a similar problem ?

I don't know if you'll get an answer on this one, but it looks a lot like the
ones LaCrosse Technology make and it might be a re-branded clock made by them.

That doesn't help a lot, I know, but some suggestions online for this sort of
clock say to replace the batteries and try letting it update. Leave it without
batteries for 10 minutes to clear anything from the circuits. It's possible
either the battery is just low enough that the update feature won't work or that
the electronics inside got confused and a bit if flipped the wrong way and
resetting it this way might fix it.

If you moved the clock from where it was working, you might have it in a dead
zone for WWV reception. Perhaps you added a new electronic device to your house
and now have broadband RFI (radio frequency interference) covering up the WWV
signal, which is likely weak anyway.

A good test of the RFI theory would be to take it with you somewhere away from
electronic devices, like camping in an area where lots of campers DON'T camp
(they bring their electronic doo-dads with them, which brings the radio noise,
too, from those little power blocks like phone chargers). See if it updates
overnight or whenever it's said to update.

You could also turn off all power to the house a little before update time, wait
for the update, and see if it happens. Turning off the mains circuit breaker
will at least stop all noise coming from electronics in your home.

If it does update, when camping or with the power off, you then can search for
the culprit, or decide to put up with it rather than to inconvenience yourself
without your favorite electronic noise-maker.

If you do find it's something in your home, we can go from there. If not, then
your clock might just have a broken feature.


Donald KX8K








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