User's Manual
Axell BSF3604-490-510-DP-AC (61-103001) Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. 61-103001HBK Issue 3 19
3.2.2 Indoor Installations
3.2.2.1 Recommended Antennas
The following describes the requirements for an omnidirectional mobile used for indoor
applications.
Specifications:
One or a combination of the following antennas can be used: Ceiling Mount Patch antenna,
Wall Mount Patch antenna, Corner Reflector.
Choose an antenna with high side lobe attenuation which enables maximum isolation from
other co-located antennas.
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
3.2.2.2 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