diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1999-06-07 10:24:56 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1999-06-07 10:24:56 +0200 |
| commit | 1b4023134b5ff6342301c8135b11df46546d2828 (patch) | |
| tree | 50dc64182994ea2c13ce23919fa75e64edd4d0f0 /hdlcutil/smdiag.8 | |
| parent | 17287576555a5c46fa23549e2e5f073660dccb70 (diff) | |
Import ax25-tools 0.0.2 from tarballax25-tools-0.0.2
Diffstat (limited to 'hdlcutil/smdiag.8')
| -rw-r--r-- | hdlcutil/smdiag.8 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/hdlcutil/smdiag.8 b/hdlcutil/smdiag.8 new file mode 100644 index 0000000..276a1b7 --- /dev/null +++ b/hdlcutil/smdiag.8 @@ -0,0 +1,78 @@ +.\" 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). + + |