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-.\" Copyright 1996 Thomas Sailer (sailer@ife.ee.ethz.ch)
-.\" May be distributed under the GNU General Public License
-.\" "
-.TH SMDIAG 8 "1 October 1996" "Smdiag 0.1" "Linux Programmer's Manual"
-.SH NAME
-smdiag \- Linux soundcard packet radio modem driver diagnostics utility
-.SH SYNOPSIS
-.B smdiag
-.B "[\-i device]"
-.B "[\-d display]"
-.B "[ \-ce ]"
-
-.SH DESCRIPTION
-.B smdiag
-may help to adjust the audio levels of the soundcard modem driver, as well
-as to control the quality of the radio link. It may either display an
-oscilloscope like view of the input signal, or display an eye diagram.
-The display may be gated with DCD, i.e. only updated if the modem detects
-a data carrier.
-
-.SH OPTIONS
-.B smdiag
-accepts the following options:
-
-.TP
-.B \-i
-The
-.I device
-argument specifies the soundcard modem device which should be configured or
-interrogated.  It will usually have the following form:
-.I sm[0-3].
-.TP
-.B \-d
-sets the address of the X server to display the window.
-.TP
-.B \-h
-display an overview of the available command line parameters and exit.
-.TP
-.B \-c
-toggle the carrier gating of the display.
-.TP
-.B \-e
-display an eye diagram (overlay of the synchronized demodulator output)
-instead of an oscilloscope view of the input signal.
-
-.SH KEYS
-.TP
-.B C
-clears the window
-.TP
-.B D
-toggles the DCD gating.
-.TP
-.B E
-displays an eye diagram
-.TP
-.B I
-displays the input signal
-.TP
-.B Q
-quits
-.I smdiag
-
-.SH BUGS
-.B smdiag
-Reacts sluggishly to keypresses. The window size is fixed. For speed reasons,
-two square root operations per sample are not implemented in the AFSK 1200 
-baud modes. The eye diagram for the AFSK 1200 baud mode is therefore
-distorted.
-
-.SH "SEE ALSO"
-.BR smmixer " (8), " sethdlc " (8),"
-linux/drivers/net/soundmodem.c
-
-.SH AUTHOR
-smdiag was written by Thomas Sailer (sailer@ife.ee.ethz.ch).
-
-