User's Manual

800MHz & VHF Cell Enhancers
Maintenance Handbook
H/book Number:-50-078001HBKM
Issue No:-
A
Date:-02/09/2004
Page:-
50 of 88
5.2 900MHz Splitter/Combiner (05-002602)
5.2.1 Description
The Splitter/Combiner used is a device for accurately matching two or more RF signals to
single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and
ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports will
be terminated with an appropriate 50Ω load.
Being passive devices, the splitters should have an extremely long operational life and
require no maintenance. Should a unit be suspect, it is usually most time efficient to replace
the whole module rather than attempt repair or re-tuning.
Being passive devices, the splitters should have an extremely long operational life and
require no maintenance. Should a unit be suspect, it is usually most time efficient to replace
the whole module rather than attempt repair or re-tuning.
5.2.2 Technical Specification
PARAMETER SPECIFICATION
Narrowband: 815 – 960MHz Frequency
Range:
Broadband: 800 – 1200MHz
Narrowband: 145MHz
Bandwidth:
Broadband: 400MHz
Input ports: 1
Output ports: 2
Narrowband: 3.3dB
Insertion loss:
Broadband: 3.5dB
Return loss input & output: 1.3:1
Impedance: 50
Narrowband: >20dB
Isolation:
Broadband: >18dB
MTFB: >180,000 hours
Splitting: 20Watts
Power rating:
Combining: 0.5Watt
Connectors: SMA female
Weight: 200g (approximately)
Size: 54 x 44 x 21mm (including
connectors)