Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz

[donovanf at starpower.net]

20 dB over S9 from the northeast direction from Maryland 

This definitely is not a low power transmitter! 

73 
Frank 
W3LPL 

----- Original Message -----

From: "NC3Z" <nc3z at centurylink.net> 
To: topband at contesting.com 
Sent: Sunday, December 7, 2014 9:38:34 PM 
Subject: Re: Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz 

Very strong in the mid-Atlantic region also. Sawtooth sweep of a signal. 

Gary Mitchelson 
NC3Z Davidsonville, MD FM18 
NC3Z/4 Pamlico County, NC FM15 
http://www.mitchelson.org/ 

On 12/7/2014 3:55 PM, Donald Chester wrote: 
> Kind of a pulsating buzzing sound, centred around 1915, but audible down to 
> slightly below 1900 and up to approximately 1925. At its centre frequency last night (Saturday), it was just as strong as any CW contest signal. 
> 
> It was particularly loud (S9 + 30) in the Northeast and ops with 
> beverage antennas are reporting that it appears to be coming over the horizon 
> in a south easterly direction, while others say it is possibly coming from Europe or 
> Polar Russia. Whether this is a harmonic, a spur or something coming from an intentional radiator, it has made regular QSO operation between 1900 and 1930 almost unbearable for the past three nights now. 
> 
> All the more reason to hope that the FCC goes ahead and adopts their 
> proposed reallocation of 1900-2000 to delete sharing with radiolocation and to restore amateurs to primary status. Although many 160m 
> ops seemed to blow off this NPRM while the comment period was still open as if it were much ado about nothing, a few of us maintained that it was of utmost 
> importance for the amateur community to flood the Commission with comments supporting their 
> proposal. 
> 
> Although GPS has pretty much killed 160m radiolocation for the 
> moment, we never know when some new service might attempt to start up in this part of the spectrum under the guise of Radiolocation. That could be what's happening right now. For those only interested in DX and contesting in the bottom end of the band and who sometimes appear not to even consider 1900-2000 as part of the band, still must remember that if some new service were to displace amateurs 
> from the top half, congestion in the 1800-1900 kHz segment (including the DX window) would likely become unbearable. 
> 
> The FCC proposal, if adopted, would protect 
> amateur status in the entire 160m band once and for all, and let's hope it is not already too late. 
> 
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