duinolab.blogspot.com
'duino Lab: May 2009
http://duinolab.blogspot.com/2009_05_01_archive.html
Digital Electronics Experimentation - Don't Let The Smoke Out! Wheel Reinvention and a Change of Course. When I first got this CMMR-6P-60, I forged ahead and tried all the available libraries to see if any of the DCF-77 code would work. Because of the complete mismatch in how time is encoded between DCF-77 and WWVB, they failed miserably. I decided semi start from scratch and got as far as a readable time format and some variables that could be used to prime some sort of clock. Unsigned long long parity ...
duinolab.blogspot.com
'duino Lab: C-MAX CMMR-6P-60 WWVB 60kHz Receiver
http://duinolab.blogspot.com/2009/05/c-max-cmmr-6p-60-wwvb-60khz-receiver.html
Digital Electronics Experimentation - Don't Let The Smoke Out! C-MAX CMMR-6P-60 WWVB 60kHz Receiver. Back in the day, Heathkit produced "The Most Accurate Clock". It was an HF receiver that tuned to WWV. On 5, 10 and 15MHz and updated its clock from the decoded time signal. Currently most people are familiar with "Atomic Clocks" which pick up another NIST time signal, WWVB. Makes the CMMR-6P-60 for receiving the US NIST WWVB time signal. Here is the datasheet. The main thing we're interested in at the mo...
c-maxgroup.com
Products - CME8000
http://www.c-maxgroup.com/products/showProduct.php??id=1
The worlds first analog/digital Receiver IC. The CME8000 is a BiCMOS integrated straight through receiver with build in very high sensitivity and a pre-decoding of the time signal transmitted from WWVB, DCF77, JJY, MSF and HBG. The receiver is prepared for multi-mode reception by using an integrated logic. Integrated functions as stand by mode, integrated antenna switching, integrated crystal switching and a hold mode function offer features for universal applications. Low power consumption ( 100µA).
