User Manual

STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft Page 76 of 500
6.3.2.3. 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 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
6.3.2.4. 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 50 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