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