Interesting comments from LA gateway using the 500 mode
Link maintaining traffic [ qso] flow down to -20 dB s/n
over quite difficult high latitude paths , oddly , the latest
simulator tests , stop at -5 db s/n ?
-20 .. Thats a significantly Low signal level, well inside
what could be classed as weak signals mode , for comparison
the op05 opera beacon 30 seconds , and the 'qso mode 15 chrs plain text
60 second tx time line. both run to -20 dB possible -23 dB