One guy designed his own receiver, but it’s quite a bit more complex than simply using a single chip. There are some plans that don’t use the C-MAX chip, but, of course, they’re much more complex. The price from a company called Earthshine is only six pounds, but that doesn’t include shipping, of course. Here are two:Ī couple of companies in the UK seem to still have the modules in stock. There are several Web pages that show how to interface the CMMR-6 module to an Arduino or a PIC processor. As recently as a couple of years ago, Digikey actually sold this module for about seven bucks. Unfortunately, all of these kits use a little PC board made by a company called C-MAX, and the company has either discontinued making the IC that powers this module or simply quit selling this module in the U.S. WWVB 60 kHz Time Receiver Module with Antenna.I Googled “wwvb kits” and came up with the following: A recent news story about the 50th anniversary of WWVB got me to thinking about building my own WWVB receiver.
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