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ZAURA RF Module Shell

User Manual

UM023502-0911 pa

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.

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