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.TH FSK_MOD 1 2020-12-04 fsk_mod "User commands"
.SH NAME
fsk_mod \- a diagnostic tool for the codec2 library to create a raw horus modem
signal file from a codec2 bit file.
.SH SYNOPSIS
.B fsk_mod usage:
.IR Mode
.IR SampleFreq
.IR SymbolFreq
.IR TxFreq1
.IR TxFreqSpace
.IR InputOneBitPerCharFile
.IR OutputModRawFile
.PP
.SH DESCRIPTION
.PP
Reads in a set of bits to modulate
from a file, passed as a parameter, and writes modulated output to
another file
.PP
.SH OPTIONS
The first argument,
.IR Mode
is an integer. 2 for 2FSK modem, 4 for 4FSK modem.
.PP
The second argument,
.IR SampleFreq
is an integer specifying the sample rate.
.PP
The third argument,
.IR SymbolFreq
is an integer.
.PP
The fourth argument,
.IR TxFreq1
is an integer.
.PP
The fifth argument,
.IR TxFreqSpace
is an integer.
.PP
The sixth argument,
.IR InputOneBitPerCharFile
is the file name of a file with codec2 encoded bits. If "-" is
given the input is taken from stdin.
.PP
The seventh argument,
.IR OutputModRawFile
is the file name of a file to be created with modem sample data. If "-" is
given the output is sent to stdout.
.PP
.SH "SEE ALSO"
.BR fm_demod (1),
.BR fdmdv_mod (1),
.BR fdmdv_demod (1),
.BR fdmdv_get_test_bits (1)
.BR fdmdv_put_test_bits (1)
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