User Manual

STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft Page 173 of 500
10.4.5.3. 2-Way Splitter/Combiner (05-003005)
This printed circuit based Splitter/Combiner 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.
(05-003005) Specification
PARAMETER SPECIFICATION
Frequency Range 800 - 1000 MHz
Input Ports 2
Output Ports 1
Insertion Loss <3.3 dB
Isolation >18 dB
VSWR 1.3:1
Power Rating as a Splitter 50 Watts
Power Rating as a Combiner 5 Watts
Mechanical Wall mount case
Weight <1.5kg
RF Connectors ‘N’ female
Dimensions 70mm x 63mm x 21mm
(excludes connectors)
operational -20%C to +60%C Temperature
range:
storage -40%C to +70%C
10.4.5.4. Wideband Asymmetric Coupler (07-015102)
The purpose of Wideband Asymmetric Coupler (07-015102) is to tap off a known portion (in this case
10dB) of RF signal from transmission lines and to combine them, for example through splitter units for
different purposes (alarms/monitoring etc.), whilst maintaining an accurate 50Ω load to all
ports/interfaces throughout the specified frequency range. They are known formally as directional
couplers as they couple power from the RF mainline in one direction only.
07-015102 Specification
PARAMETER SPECIFICATION
Frequency Range 800 - 2500 MHz
Coupling Value 10 dB ± 1.0 dB
Main Line Insertion Loss <1.6 dB
VSWR 1.4:1
Directivity >18 dB
Power Rating 200 Watts
RF Connectors ‘N’ female
operation
-20°C to +60°C
Temperature
range
storage
-40°C to +70°C