Airspan AS4000, Installation Manual

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Setup and Test
115
Measuring Central Terminal TX Power
The recommended single user TX output power is +18dBm for 3.4-3.6GHz, +20dBm for 1.8-
1.9GHz, and +21dBm for all other bands. This procedure is used to measure the TX output
power when set up for 3 Users.
Note: If proceeding to commissioning the DACU should be powered up and allowed to warm
up for 30 mins prior to setting the RX sensitivity..
This procedure is for setting up AS4000 shelves only.
Tools and equipment needed.
Item Description Recommended Model Quantity
1 50 ohm Termination 10W ArraN9510 1
2 RF Power Meter Anritsu Sitemaster S400A or
Marconi 6970 1
3 Power Sensor Anritsu 560-7N50B or Marconi
6932 1
4 Attenuator for use with
Anritsu HP 8491 (N Type) 1
Test TX Output Power (Test 5)
Note: If adding a shelf to a rack that is already in service it is necessary to
remove any shelf sharing the power amplifier from service in order to make
power measurements. This is best done when traffic loading is at its lowest
In order to commission the output power of the rack, a Power Meter must be
connected via a power sensor to the N-Type connector on the DIP/LNA at the top of
the rack. Protect the meter by connecting a 30dB attenuator (HP 8491) to the output
of the DIP/LNA as the output power can exceed 33dBm.
1. Note: The output from shelves 1 and 2 is measured on DIP/LNA1. The outputs from
shelves 3 and 4 are measured on the DIP/LNA2. The port not under test should be
terminated with a 10W termination.