User Manual

AS4000 Central Terminal

Installation and Commissioning

DLP 011

605-0000-452

Issue 1.3dr Date 7/02/00

Page 4 of 6

STEP PROCEDURE

2. Rx Sensitivity (Test 6)

1. To set the receive sensitivity, first set up a test network for the Band under test as shown in

Figure 34 and Figure 35 below. The Figures below show the test equipment connected

directly to the outputs of the DIP/LNA and TX filter as would be the case for systems

without coupler.

Power

Meter

Test

(2.0-2.3GHz)

(2.3-2.5GHz)

(3.0-3.4GHz)

CT Rack

1 2

30dB

30dB 30dB

2:1

Splitter

2:1

Splitter

2:1

Splitter

SMA-N

RF Sensor

N-SMA

11dB

Variable *

* Set variable attenuator

to a nominal value of 5dB

Termination

TX 1 & 2

RX 1, 2, 3, 4

TX 3 & 4

Screened Box

Figure 34. Test Set-up 2.0-2.3GHz, 3.4-3.6GHz, and 2.3-2.5GHz Bands.