TETRA Antenna Combiner
Radio Systems Information Ltd.
Page 8
3
Specification
Frequency:
Tx 380-385MHz, Rx 390-395MHz
Tx Insertion Loss:
Model A:
Ports 1 & 2:
0dB
Ports 3 & 4:
11dB
Model B:
All Ports:
11dB
Rx Gain:
Configured to be identical to Tx path loss for each port
Port to Port isolation (Tx Band):
>60dB
Port to Port isolation (Rx Band):
>65dB
Antenna to Port isolation (Tx Band): >60dB
PA 3rd order intercept (2 x 3 watt): >+58dBm
Blocking:
-30dBm
(1dB change in –80dBm wanted
interferer 1MHz away)
LNA noise figure:
3dB at 2dB gain
VSWR:
1.5:1
Antenna & Port Connectors:
BNC
Receiver Only 5
th
Port:
TNC
Power Supply:
Model A:
11-15V @ 15A
Model B:
11-15V @ 1A
Dimensions:
6u 19” rack (266 x 483 x 470)
