Disturbing news for HF

Nan and Sandy Sanders radiodog77 at pobox.com
Mon Jan 19 15:18:53 CST 2015


The article links to the web site of 
PA0SIM  http://www.pa0sim.nl/XOpropagation.htm 
that links to the web page of Bob Bruhns WA3WDR 
(sk) that is gone but I found a copy on the 
wayback machine at 
http://web.archive.org/web/20130905114615/http://www.bruhns.us/CP_on_HF/CP_on_HF.html 
.
      Sandy
      WB5MMB







At 12:36 PM 1/19/2015, Karl W4KRL wrote:
>Another threat to our bands?
>
>73 Karl W4KRL
>
><http://www.tvtechnology.com/distribution/0099/list-of-experimental-licenses-reveals-interesting-hf-data-comm-experiments/274152>http://www.tvtechnology.com/distribution/0099/list-of-experimental-licenses-reveals-interesting-hf-data-comm-experiments/274152
>
>​Abstract​
>
>Ham radio operators have been using the 
>shortwave (“high-frequency” or HF) bands for 
>data communications for over 50 years, but the 
>data rates are much less than those available 
>with dial-up modems. HF communications have the 
>advantage that they don't depend on vulnerable 
>satellites, don't require line-of-sight, and can 
>cover huge distances under the right conditions.
>
>The FCC recently granted two companies 
>experimental licenses to use HF bands for data 
>communications at far greater bandwidths and 
>data rates than have been used by amateur radio 
>operators. While these communication systems are 
>being developed for the military, it’s 
>possible some of the techniques developed could 
>be used for digital broadcasting in the AM band, 
>or more likely for shortwave broadcasting where 
>sky wave propagation is important.
>
>According to the commission’s Office of 
>Engineering and Technology Experimental 
>Licensing Branch's list of experimental 
>applications between 10/1/14 to 10/31/14, 
>license WH2XCI was granted to The MITRE 
>Corporation to operate in the 2505.00 - 4100.00, 
>4210.00 - 4995.00, 5005.00 - 6210.00, 6320.0 - 
>8250.00, 8450.00 - 9995.00, 10005.00 - 12200.00, 
>13500.00 - 14990.00 and 15010.00 – 16000.00 kHz 
>bandss to test HF communications at fixed 
>locations in Bedford and Worcester in 
>Massachusetts and Oneida and Rome in New York.
>
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