User Manual

STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft Page 143 of 500
10.4.1.3. 900MHz Splitter/Combiner (05-002602)
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 should 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.
05-002602 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: 50Ω
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
10.4.1.4. Four Way Splitter/Combiner (05-003302)
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 should be terminated with an
appropriate 50Ω load.
Four Way Splitter (05-003302) Specification
PARAMETER
SPECIFICATION
Frequency range 700-980MHz
Bandwidth 180MHz
Rejection >14dB
Insertion loss <7.0dB (in band)
Connectors N type, female
Weight <1.5kg
operational -20%C to +60%C Temperature
range
storage -40%C to +70%C