[time-nuts] Re: Syncserver S300 LFR 60 kHz WVVB

[Hal Murray]

Bob kb8tq said:
> As time has gone on, the world has fallen in love with switching power
> supplies. Often these run at 40 to 80 KHz and create a ton of RFI. That has
> made WWVB more difficult to receive. Also MSF propagates into  the northeast
> at some times creating issues as well.  

I remember a rant from Dave Mills many years ago when his WWVB gear was no 
longer working well.  I couldn't find it via google.

My memory is that he had tracked down the interference to EMI on the power 
lines coming from a local factory.  I don't remember how far away it was.  I'm 
guessing it was 1-3 miles, maybe 5-10.

Has anybody seen any reports of this sort of problem?  Did NIST publish any 
data when they were researching the new modulation scheme for WWVB?

If I want to measure EMI around my neghiborhood, what sort of gear would I 
need?

-- 
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