smdiag8
Linux soundcard packet radio modem driver diagnostics utility
Usage
smdiag [-i
device]
[-d
display]
[-ce]
Overview
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.
Options
smdiag accepts the following options:
-
-i -
The device argument specifies the soundcard modem device which should be configured or interrogated. It will usually have the following form: sm[0-3].
-
-d -
sets the address of the X server to display the window.
-
-h -
display an overview of the available command line parameters and exit.
-
-c -
toggle the carrier gating of the display.
-
-e -
display an eye diagram (overlay of the synchronized demodulator output) instead of an oscilloscope view of the input signal.
Keys
- C
-
clears the window
- D
-
toggles the DCD gating.
- E
-
displays an eye diagram
- I
-
displays the input signal
- Q
-
quits smdiag
History
- Debian 13 (Trixie) to Debian 11 (Bullseye): the text shown here
- Debian 10 (Buster) to Debian 7 (Wheezy)
- Debian 6.0 (Squeeze) to Debian 3.0 (Woody)