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
>
>âAbstractâ
>
>Ham radio operators have been using the
>shortwave (âhigh-frequencyâ 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, itâs
>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 commissionâs 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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