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In Reply to: RE: get your own atomic clock chip for half that price posted by pictureguy on July 25, 2012 at 12:41:14
...for typical consumer 'atomic clock' synchronization using a time code. You're unlikely to get it on most general coverage / shortwave receivers as the signal is well below the US AM broadcast band in frequency.
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I've never received WWVB...My LW receiver goes to only 150KHz. As it turns out, I've never gotten ANYTHING below the standard AM band.
Antenna length is daunting and normal interferrence wipes out anything that remains. I don't recall trying those frequencies when Southern California had a near-12 hour power lapse last year. At that time, normal SW reception was Epic. and electrically quiet. Too bad I couldn't power my Stereo.
The modules used in 'atomic clocks'....which I guess just update themselves every day (nite, actually, when reception is best) are sometimes removeable....so the real over achiever could use one of THOSE and probably get the same end result or better...as one of those expensive 'local' modules w/built in source.
WWV and WWVH broadcast the encoded time as well as WWVB.....And since it is the LW version which provides the time code, for 'atomic clocks', my objection to WWV / WWVH is out the window.
As a total aside, the US uses ELF or VLF to communicate with subs. The waves will go thru some depth of salt water. The transmitters take up a LOT of space, miles in most cases. Also, due to huge inefficiencies, radiated power is just a small fraction of that needed to run the operation.
Too much is never enough
. The transmitters take up a LOT of space, miles in most cases.
HAARP deals with this.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
I thought the ELF / VLF antenna array was in Michigan?
The Russians have s similar program at a frequency near 60Khz.
HAARP is high frequency stuff.....10Mhz......and sounds weather related.
Too much is never enough
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