----- Original Message -----
From: "paul swed" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Monday, October 22, 2012 8:35 PM
Subject: Re: [time-nuts] WWVB New Modulation five cent demodulator / carrier
regenerator ?
To switch correctly at the zero point I sample the plus of the secondary
with a LM339 comparator (only using 1 section) and feed that to a SXB micro
running at 40 Mhz. Detect the zero and switch if I want. The micro programs
in basic and screams along. So I can flip at any rate or create patterns as
easily as I can think them up. Its seriously dumb, simple, and stupid. But
it lets me run tests without waiting for wwvb. I do attenuate the output
signal to about 60 uv. Generally what I see on the east coast during the
day.
================================
Hi Paul,
Reading the spec, I think the chip wants to see about 500 UV RMS. Is that
correct?
At three cents each, it sure would be nice to find another use for it.
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