User Manual

AXELL CSR 3604-3304 UHF REPEATER
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd DOC PN 3633B-UM Rev. 2.1 9
Equation (1) - Max SERVICE antenna gain
Max SERVICE antenna gain (dBi) = 39.1 – (37dBm - # of antennas in dB – cable losses in dB).
For example:
No. of Antennas
Cable Losses
Max Allowed Antenna Gain
4
3
39.1 - (37-6-3) = 11.1dBi
1
3
39.1- (37-0-3) = 5.1dBi
10
3
39.1- (37-10-3) = 15.1dBi
Typical Antenna Types:
 Indoor Dome 2.1dBi beam width 360
o
 Indoor Panel 4.2dBi beam width 106
o
 Radiating Cable Typically < -50dBi
2.2.2.2 Recommended Splitters and Couplers
Axell Wireless can supply a comprehensive range of splitters and Couplers to aid the
installation of the internal DAS system. Typical specifications as below:
Splitter Part Numbers
90-851202
90-851203
90-851204
Frequency Band
300 - 500MHz
Split
2 way
3 way
4 way
Max Insertion Loss
0.3dB
0.5dB
0.4dB
Split Loss
3dB
4.8dB
6dB
Coupler Part Number
90-852306
90-852310
90-852315
90-852320
Frequency Band
300 - 500MHz
Coupling
-6dB ±1.0dB
-10dB ±1.0dB
-15dB ±1.0dB
-20dB ±1.0dB
Max Mainline Loss
1.7dB
0.8dB
0.4dB
0.22dB
2.2.2.3 Installation Criteria
Determine the antenna installation configuration, according to the transmission
requirements and the installation site conditions.
Installation requirements:
 An indoor antenna should be installed at a convenient location. It should be free of
metallic obstruction.
 Install the Service Antenna at the designated height and tune it roughly toward the
Service coverage area.