Zilog ZAURA868 - Manual (Page 27)

ZAURA RF Module Shell
User Manual
UM023502-0911 pa
21
pa transmit constant preambles
Syntax
pa <dummy>
Example 1
Pa

OOOO
Example 2
Pa xx

xOxOx

The pa console command is used to force the transmitter to emit a stream
of constant preambles on the current RF channel at the current Tx power
level setting. If the pa command is issued without any parameters, then
the radio will continuously emit preambles until a key is pressed on the
terminal program. If a parameter is specified, then regardless of the value
of the parameter, the radio will emit preambles for a period of 1 second
and then stop sending preambles for a period of 1 second. This cycle
repeats such that the radio emits preambles with a 50% duty cycle at
0.5 Hz. While transmitting preambles, the node running the
pa command
may interfere with nearby RF communications and could even prevent
other nodes from being able to communicate at all.
As the pa command operates, it will display a character on the console
every second. An “O” is displayed if the radio is emitting preambles, and
an “x” is displayed when it is silent. The
pa command terminates when a
key is pressed on the console terminal.