300 | Alarm Types and Sources
Aprisa SRx User Manual 1.3.0
Alarm Events
Transmitter Alarm Events
Event
ID
Event Display
Text
Default
Severity
Configuration
Type
Function
Recommended Actions
1
PA Current
critical(1)
Threshold Type
Alarm to indicate that the
current drawn by the
transmitter power amplifier
is outside defined limits.
Check antenna is not open or
shorted, check duplexer
correctly connected and
tuned, if OK replace radio.
61
PA Driver Current critical(1)
Threshold Type
Alarm to indicate that the
current drawn by the
transmitter power amplifier
driver is outside defined
limits.
Check antenna is not open or
shorted, check duplexer
correctly connected and
tuned, if OK replace radio.
62
PA Stability
warning(4)
Threshold Type
Alarm to indicate that the
power amplifier is oscillating
which may cause corruption
of the TX signal
Check antenna is not open or
shorted, check duplexer
correctly connected and
tuned, if OK replace radio.
2
TX AGC
critical(1)
Threshold Type
Alarm to indicate that the
variable gain control of the
transmitter is outside
defined limits.
Check antenna is not open or
shorted, check duplexer
correctly connected and
tuned, if OK replace radio.
3
TX Reverse Power warning(4)
Threshold Type
Alarm to indicate that the
antenna is not connected to
the radio
Check antenna is not open or
shorted, check duplexer
correctly connected and
tuned, and confirm VSWR at
TX port is less than 2:1. If
OK replace radio.
60
TX Forward
Power
warning(4)
Threshold Type
Alarm to indicate that the
transmitter power is outside
the selected TX power
setting.
Check antenna is not open or
shorted, check duplexer
correctly connected and
tuned, and confirm VSWR at
TX port is less than 2:1. If
OK replace radio.
4
Temperature
Threshold
warning(4)
Threshold Type
Alarm to indicate that the
transmitter temperature is
outside defined limits.
Check ambient temperature
and for airflow obstructions.
5
TX Synthesizer
Not Locked
critical(1)
Threshold Type
Alarm to indicate that the
transmitter synthesizer is not
locked.
Power off radio and restart.
If condition persists replace
radio.
31
Thermal
Shutdown
critical(1)
Threshold Type
Alarm to indicate that the
transmitter has shutdown
due to excessively high
temperature.
Check ambient temperature
and for airflow obstructions.
Receiver Alarm Events
Event
ID
Event Display
Text
Default
Severity
Configuration
Type
Function
Recommended Actions
7
RSSI Threshold
warning(4)
Threshold Type
Alarm to indicate that the
receiver RSSI reading taken
on the last packet received is
outside defined limits.
Check antenna is not open or
shorted. If the antenna is
directional check for off-
pointing.
8
RX Synthesizer
Not Locked
critical(1)
Not Configurable
Alarm to indicate that the
receiver Synthesizer is not
locked on the RF received
signal.
Power off radio and restart.
If condition persists replace
radio.
9
RX CRC Errors
warning(4)
Error Ratio Type
Alarm to indicate that the
data received on the RF path
contains errors at a higher
rate than the defined error
rate threshold.
Check antenna is not open or
shorted. Check duplexer is
correctly tuned. If the
antenna is directional check
for off-pointing. Power off
radio and restart. If
condition persists replace
radio.
