There were several companies that made WWV clocks that worked by
recovering the 100 Hz time code information. ESE, who makes
broadcast related products, including clocks, was one. I remember
installing several card types manufactured by various companies that
worked in computers. I still have two of the Heathkit clocks, but
alas, they won't work at home because of my standards.
Burt, K6OQK
From: Mike Harpe <m...@mikeharpe.com>
So doesn't this put us back to the same situation as when Heathkit got
a patent for their "Most Accurate Clock" kit that used the timecode
from the HF signals on WWV and WWVH? No one wanted to make radio
clocks because of the patent.
Has there been any talk about how available the chip will be? My
attitude is that I'll build whatever I want to for myself.
Mike Harpe, N4PLE
>> I realize this modulation scheme change is perceived as a sensitive
>> subject. But, really, since the full scheme is fully disclosed no
>> company has a monopoly on its use.
>
> Actually, I think the developing company does have patents on some of
> the receiver implementations. You can probably design around them.
>
>
> My question is, will this new scheme
>> offer enough advantages to merit the production of commercial equipment
>> to use it, and ultimately whether low-cost equipment will be
>> sufficiently advantageous to merit its design and production in volume
>> like the typical WWVB digital clocks prevalent today.
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
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