The
decoder can detect and defeat a modest amount of CWI that is within the
BW set by the BW factor. Increasing the CWI threshold increasing
the sensitivity for this correction. The offending tones are
punctured thereby rendering them null to the Viterbi decoder.
Enter the secondary text. This text will be sent during periods when
your keyboard is inactive (between letters for slow typists). The
default for this text will be your callsign when you have entered that
in the Operator configuration tab.
Set
the BW factor for the decoding prefilter. 2.0 should be adequate
unless you are experiencing nearby continuous wave interference (CWI). You can enable and
disable the prefilter with the checkbox. Please note that the
filter requires additional cpu cycles. Older and slower cpu
models might give better decoding with the filter disabled.
The
DominoEX decoder can detect the presence of CWI within the passband set
by the BW factor. Increasing the CWI threshold increases the
sensitivity to such interference. When the interference is
detected the associated data is culled using a technique called
puncturing.
Thor
has been specifically designed to be used with ARQ text transmissions.
It is also an easy to use keyboard chat mode. Thor
operations are described in
Operating Thor.