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23 lines
1.3 KiB
Text
23 lines
1.3 KiB
Text
xfhell is a GTK+ application for the "fuzzy" digital communication
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mode known as Hellschreiber. xfhell has several different built-in
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fonts in Adobe BDF format, including a font set for Greek, and
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a special "short" font set that is 12 pixels high instead of the
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standard 14 of the original Hell fonts. Using this font set would make
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xfhell incompatible with other Hellschreiber programs, but the short
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fonts speed up operation and avoid wasted bandwidth, inherent in the
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original Hellschreiber design (an unavoidable problem of the original
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mechanical implementation of the mode). xfhell also has selectable
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lower baud rate operation (down to 7.6 Bd), which again make it
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incompatible with other Hellschreiber programs, but the lower speeds
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(especially combined with the 12-pixel fonts) would make this mode
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even more efficient and effective.
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xfhell has built-in CAT control for the FT847 and FT857 transceivers
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and a QSO logging facility similar to xpsk31. It also has a
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FFT-derived waterfall display of the incoming signal, with the ability
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to detect maximum signal level and tune the transceiver, via CAT, to
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the appropriate carrier frequency by clicking near the signal trace.
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By default, xfhell wants to install a directory structure in the $HOME
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of the installing user. The SlackBuild overrides this, and copies that
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structure into /usr/share/xfhell-$VERSION/.
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