Att; Alarm Threshold - Comba Telecom RX-1839 User Manual


For LTE, the channel no must be LTE channel no, the bandwidth is 10, 15 or 20MHz.

The protective frequency edge interval of channels should no less than 800kHz and the minimum
interval as illustrated below.

5.7.3 ATT

ATT adjustment includes UL/DL ATT adjustment. The purpose of adjusting the ATT is to adjust system
gain.
Config:
Select the required value in setting columns of RF information window for ATT, and press [Enter] or [Config]
button to finish the configuration operation.

5.7.4 ALARM THRESHOLD

Alarm Threshold includes Power threshold, Temperature threshold and VSWR threshold.
Users can set alarm threshold according to the specific situation. If the measured value is lower than the
threshold lower limit or more than the threshold upper limit, the appropriate alarm will be generated. The min
value and Max value denote the available range for setting the thresholds.
ENU STATUS : 1-0-0
INSTALLATION GUIDE FOR RX-1839
N1
600kHz
Band A
Thereinto,
N1: WorkingBand A High Edge Channel No.
N2: WorkingBand B Low Edge Channel No.
Figure 23: The Protective Frequency Edge Interval
Figure 24: ATT
Copyright - refer to title page
N2
800kHz
Band B
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