CM-ECCS-U441TB
Page 1 of 7
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PRODUCT DESCRIPTION
ECCS-450-470-50-4-4-1TB
field tunable compact combining system allow four transmitters and four
receivers operating in 450-470MHz share one Tx/Rx antenna.
•
Built-in tunable duplexer accessible by removing the cover on the bottom of the chassis.
•
Tune the duplexer without disconnecting the interconnection cables.
•
Gain adjustment switches on the rear panel.
Major Tuning Parameters
Typical Tuning Range
Tx Band
Low Band
Rx Band
High Band
Tx-Rx End-End Separation, Non-tunable
5MHz
Tx Tuning Range
450-470MHz
Tx Pass Bandwidth, Non-tunable
2MHz
Rx Tuning Range
450-470MHz
Rx Pass Bandwidth, Non-tunable
2MHz
Warning Message:
•
Attempt to tune and operate the unit beyond the tuning range specified in the
above table may damage the unit and violate the warranty.
•
Please follow the instruction to connect the network analyzer and tune the
duplexer.
Electrical Specifications
Typical Tuning Target
Insertion Loss (maximum): Tx-ANT Ports
8.2dB (including duplexer insertion loss)
Isolation (minimum): Tx-Rx Ports
85dB
Isolation (minimum): Tx-Tx Ports
75dB
Isolation (minimum): ANT-Tx Ports
55dB
VSWR @ Tx/Rx Ports
1.25:1
VSWR @ Antenna Port
1.4:1
