OpenTracker USB User’s Manual
30
Between these two extremes, the interval varies between the low rate and
high rate (specified separately with the INTERVAL command) depending
on the speed.
The <low speed> and <high speed> settings define these two limits. For
storage efficiency, the speeds are represented in units of 32
centimeters/second. To convert from miles per hour, multiply by 1.397.
To convert from kilometers per hour, divide by 1.152.
Setting
MPH
Km/h
5
3.6
5.7
10
7.2
11.5
15
10.7
17
25
17.9
29
40
28.6
46
60
43
69
80
57
92
100
71
115
<low rate> and <high rate> are specified in seconds. <angle> indicates the
change of direction, in degrees, that will cause an immediate transmission.
<time> specifies, in seconds, the minimum time required between
transmissions, regardless of speed or turns.
SNOOP
[hex]
(local only)
The
SNOOP
command outputs on port A each character received on port B
until another key is pressed. Use this command to troubleshoot GPS and
weather station connections on port B. Make sure port A’s baud rate is
equal to or greater than port B’s baud rate.
SQUAWK
<0-255> (seconds)
Transmits alternating tones for specified number of seconds. May be used
for testing or direction finding.
SWDCD
on|off
ON
selects software data carrier detect mode, providing a channel busy
indication only when data is present.
OFF
selects energy detect mode,
which will provide a busy indication for any signal, including static or
voice.