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<font face="Helvetica, Arial, sans-serif">I've uploaded a couple of
interesting articles from the "Critical Comms" website
(<a class="moz-txt-link-freetext" href="http://www.criticalcomms.com.au/">http://www.criticalcomms.com.au/</a>) to the WICEN site.<br>
<br>
The first is a paper about the current use of HF in general, and
digital HF in particular:<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.vic.wicen.org.au/wp-content/uploads/2017/06/loud-and-clear-digital-hf-radio-communications-1244946130.pdf">http://www.vic.wicen.org.au/wp-content/uploads/2017/06/loud-and-clear-digital-hf-radio-communications-1244946130.pdf</a><br>
<br>
The second paper addresses an issue we've been aware of for some
time; the alignment of FM radios for optimum performance with
digital signals. The new article is at:<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.vic.wicen.org.au/wp-content/uploads/2017/06/digital-radio-transmitter-alignment-critical-for-optimal-performance-544526914.pdf">http://www.vic.wicen.org.au/wp-content/uploads/2017/06/digital-radio-transmitter-alignment-critical-for-optimal-performance-544526914.pdf</a><br>
<br>
A simplified treatment of this topic has been on our web site for
some time at:<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.febo.com/packet/layer-one/transmit.html">http://www.febo.com/packet/layer-one/transmit.html</a><br>
<br>
Regards,<br>
<br>
Mark Dods, VK3ZR<br>
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