User Settings - CalAmp Viper 100 User Manual

― Forward Power Alarm & Notification. Select Enabled/Disabled. Default = Enabled. The Forward Power Alarm will
trigger when the measured forward power drops 1 dB or more below the user configured transmit power. The Forward
Power Alarm SNMP trap is generated when this condition occurs. When the forward power returns to within 0.8 dB of
the wanted power the error is cleared and a second notification is sent indicating the error has cleared. For example,
assume the Viper SC is programmed to transmit at 10W. If the measured forward power drops below 7.9W then the
error is detected and the SNMP Trap or Alarm is generated. If the forward power then rises above 8.3W the error is
cleared and a second SNMP Trap or Notification is generated.
― Reverse Power Alarm & Notification. Select Enabled/Disabled. Default = Enabled. The Reverse Power Alarm will warn
the user of a major problem with the Power Amplifier or Antenna, such as the antenna becoming disconnected. The
alarm will trigger when the measured reverse power increases to within 3 dB of the user configured transmit power.
The Reverse Power Alarm SNMP trap is generated when this condition occurs. When the reverse power drops 5 dB
below of the wanted power the error is cleared and a second notification is sent indicating the error has cleared. For
example, assume the Viper SC is programmed to transmit at 10W. If the measured reverse power increases above
5.0W then the error is detected and the SNMP Trap or Alarm is generated. If the reverse power then drops below 3.1W
the error is cleared and a second SNMP Trap or Notification is generated.
― PA Power Alarm & Notification. Select Enabled/Disabled. Default = Enabled. The PA Power Alarm & Notification will
warn the user when the power amplifier goes into either a Foldback or Shutdown State. The power amplifier will first
go into the Foldback state if the PA temperature gets too hot. In the foldback state, the Viper SC will cut the transmit
power in half every 4 minutes until the PA has cooled off. The transmit power will not be reduced further if the power
is originally set for 1W or reaches 1W due to foldback. If the temperature continues to increase, the PA may go into
Shutdown mode. If this happens, another SNMP trap will be generated, indicating that the PA is Shutdown. The Viper
SC will not transmit until the unit cools down. This trap will not be sent over the air and will only be sent out the
Ethernet interface. When the temperature drops back to a safe level, the Viper SC will resume transmitting at full
power and the PA Power Notification SNMP Trap will be generated to indicate that the Viper SC is operating at full
power again.

4.4.8 USER SETTINGS

Figure 49 – User Settings
4.4.8.1 TEMPERATURE DISPLAY
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