User's Manual

001-5008-000 rev5_2.doc Page 77

7.7.3 PA Power Alarm & Notification

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 ViPR 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

ViPR 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 ViPR will resume transmitting at full

power and the PA Power Notification SNMP Trap will be generated to indicate that the ViPR

is operating at full power again.

7.8 USER SETTINGS

Figure 7.26 Setup (Advanced)

User Settings

 Temperature Display

Select Celsius, Fahrenheit; Default: Celsius