User Manual

Table Of Contents
INSTALLATION GUIDE
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100 Rev.: 00
Page: 50 of 92
Beamer
Array
[G=13.5dBi]
G
1:4
Divider
Loss=L
G
ABT
BTS
Input
P
in
Pout (max)=10dBm
G=30±1dB
GC=0 to15.5dB
L=0 to
6dB
Pout (max)=33dBm
G=37±0.5dB
GC=0 to
EIRP=52.5dBm(max)
Combined
in the Air
Beamer 4
G
G
Beamer 3
G
Beamer 2
Beamer1
-20
dbm
Pin=-5dBm to -20dBm
+8
dbm
Coax
15.5dB
+39dbm
[L=6db]
+2
dbm
-4
dbm
Figure 21: Tx link budget example
2.8.5.1. Estimating the Required Tx-ABT Gain
The purpose of this procedure is to verify that the BEAMER system available gain is sufficient to
cover the expected RF losses, before starting the actual Tx calibration.