1ATEST(1)                    General Commands Manual                   ATEST(1)
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NAME

6       atest - Decode AX.25 frames from an audio file.
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SYNOPSIS

11       atest [ options ] wav-file-in
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13              wav-file-in is a WAV format audio file.
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DESCRIPTION

16       atest  is  a  test application which decodes AX.25 frames from an audio
17       recording.  This provides an easy way to test Dire Wolf  decoding  per‐
18       formance much quicker than normal real-time.
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OPTIONS

24       -B n   Bits  /  second  for data.  Proper modem selected for 300, 1200,
25              9600.  300 baud uses 1600/1800 Hz  AFSK.   1200  (default)  baud
26              uses 1200/2200 Hz AFSK.  9600 baud uses K9NG/G2RUH standard.
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29       -D n   Divide audio sample rate by n.
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32       -F n   Amount  of  effort  to try fixing frames with an invalid CRC.  0
33              (default) = consider only correct frames.  1 = Try to fix only a
34              single bit.  more = Try modifying more bits to get a good CRC.
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37       -P m   Select  the demodulator type such as A, B, C, D (default for 300
38              baud), E (default for 1200 baud), F, A+, B+, C+, D+, E+, F+.
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EXAMPLES

44       gen_packets -o test1.wav
45       atest test1.wav
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47       gen_packets -B 300 -o test3.wav
48       atest -B 300 test3.wav
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50       gen_packets -B 9600 -o test9.wav
51       atest -B 9600 test9.wav
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53              This generates and decodes 3 test files with 1200, 300, and 9600
54              bits per second.
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56       atest 02_Track_2.wav
57       atest -P C+ 02_Track_2.wav
58       atest -F 1 02_Track_2.wav
59       atest -P C+ -F 1 02_Track_2.wav
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61              Try  different combinations of options to find the best decoding
62              performance.
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SEE ALSO

65       More   detailed    information    is    in    the    pdf    files    in
66       /usr/local/share/doc/direwolf,   or  possibly  /usr/share/doc/direwolf,
67       depending on installation location.
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69       Applications in this package: aclients, atest,  decode_aprs,  direwolf,
70       gen_packets, kissutil, ll2utm, log2gpx, text2tt, tt2text, utm2ll
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