WWVB experiment for 2017 total solar eclipse over US

Richard O'Neill richardoneill at earthlink.net
Fri May 1 09:51:05 CDT 2015


On 5/1/2015 6:37 AM, Bill wrote:
> I am open to any thoughts and comments.

  My experiments with WWVB crystal sets suggest it should be an easy 
project. My WWVB crystal set consists of a long wire antenna and ground 
feeding a tuned antenna circuit, inductively coupled to a detector tuned 
circuit that is demodulated by a germanium diode. During nighttime 
reception the diode output can be heard (without amplification) in a 
balanced armature (sound powered) headset. During daylight hours signal 
strength is somewhat reduced requiring audio amplification to be heard.

  The biggest hurdle to overcome during the August solar eclipse will be 
thunderstorm static crashes which can completely override WWVB's signal. 
Whatever receiver design is chosen I suggest employing a narrow bandwidth.

http://tf.nist.gov/tf-cgi/wwvbmonitor_e.cgi

" Keep in mind that not all RCCs (radio controlled clocks) are created 
equal, some employ/advanced digital signal processing techniques/ that 
will allow them to synchronize under conditions where other products 
will fail.

http://www.nist.gov/pml/div688/grp40/wwvb.cfm

http://www.mas-oy.com/en/products/radio-controlled-clock-rcc/

http://www.pvelectronics.co.uk/index.php?main_page=index&cPath=9

http://www.bestelectronics.com.hk/rcc_receiver.html

https://www.sparkfun.com/datasheets/Wireless/General/CMMR-6P-A2-1.pdf


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