[\-team-a-count \fIint\fP]
[\-team-b-count \fIint\fP]
[\-no\-dns]
+[\-no\-times]
[\-debug]
.SH DESCRIPTION
The \fIsonar\fP program displays a sonar scope on the computer's screen.
.B \-no\-dns
Do not attempt to resolve IP addresses to hostnames.
.TP 8
+.B \-no\-times
+Do not display ping times beneath the host names.
+.TP 8
.B \-team-a-name \fIstring\fP
In simulation mode, the name of team A.
.TP 8
chown root.root sonar
chmod u+s sonar
.EE
+In ping-mode, the display is a logarithmic scale, calibrated so that the
+three rings represent ping times of approximately 2.5, 70 and 2,000
+milliseconds respectively.
+
+This means that if any the hosts you are pinging take longer than 2
+seconds to respond, they won't show up; and if you are pinging several
+hosts with very fast response times, they will all appear close to the
+center of the screen (making their names hard to read.)
.SH SEE ALSO
.BR X (1),
.BR xscreensaver (1),