Vitaliy wrote: > Forrest, I don't think I've ever seen your website. What kinds of products > do you build/sell? > Niche-market products for the Wireless ISP industry. Well, mostly for the Wireless ISP industry. http://www.packetflux.com/ The devices which use the GPS receivers are actually after the highly accurate (within 100ns of UTC) 1 Pulse per second timing signal to synchronize radios for the internet providers to help reduce self-interference. They are a lot less expensive than the official manufacturer-designed products, and I move a lot of them every year. >> In reality my intention would be to use the 60Hz line as the clock >> source. Good, cheap, reliable, as long as you make sure you have a good >> schmitt-trigger on the input. >> > > A long time ago, someone told me that because of this assumption, clocks > that worked well in FRG went haywire in the GDR. You are really limiting > your market with this decision. ;-) > Hmmm... if my target market ever moves outside the US 60Hz power grid, maybe I'll release a patch. You know you're a real electronics (or PIC) geek when you say "my alarm clock isn't working for me anymore, and everyone I've purchased has had things that irritate me, so I'll just build one which does work the way I want it to". We could go into the numerous stupid things about the typical mass-market alarm clock, but I won't. And no, I'm not interested in selling alarm clocks to Wal-Mart. -forrest -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist