ARLA/CLUSTER: FCC atribui licenças para comunicações digitais em banda larga no HF
João Costa > CT1FBF
ct1fbf gmail.com
Segunda-Feira, 19 de Janeiro de 2015 - 13:14:42 WET
FCC licenses wideband HF data comm experiments
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 in the USA
Writing in TV Technology Doug Lung says the license application by
MITRE is to use HF modes with emission designators of 5K00Q3N,
500KD7D, 500Q3N, 500W7D, 1M00D7D, 1M00Q3N and 1M00D7W (1M00 is a
necessary bandwidth of 1 MHz).
The company aims to achieve reliable HF communications at a data rate
between 1 and 4 bits/Hz/s. MITRE said it will develop a 100 kHz
bandwidth waveform that can achieve approximately 256 kbps with
forward error correction (FEC) coding.
Read the article at
http://www.tvtechnology.com/distribution/0099/list-of-experimental-licenses-reveals-interesting-hf-data-comm-experiments/274152
2013 - 80m ham radio band used for wideband video/data
http://www.southgatearc.org/news/august2013/
80m_ham_radio_band_used_for_wideband_video_data.htm
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