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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.amrad.org/pipermail/tacos/attachments/20150501/8c1ebbac/attachment-0001.html>
More information about the Tacos
mailing list