FINAL TEST
– DESENSE
1. Connect the Full Duplex Input/Output of the Service Monitor to the Repeater Antenna Connection.
2. Apply power to the Repeater.
2. Set the Generated RF Signal of the Service Monitor to the Receive Frequency of the Repeater. Set the RF level low
enough as to not cause the Repeater to transmit.
3. Set the Received Signal of the Service Monitor to the Transmit Frequency of the Repeater.
4. Plug in the RJ11 Test Jack and connect a wire from Pin 4(Monitor) to Pin 1(Ground) of the RJ11 Test Jack. This will
keep the Repeater from transmitting.
5. Connect a SINAD Meter to Pin 5(Audio Out) to Pin 1(Ground) of the RJ11 Test Jack.
6. Increase the generated RF Signal from the Service Monitor until 12dB SINAD is measured on the SINAD Meter.
7. Remove the wire from Pin 4 of the RJ11 Test Jack. The Repeater should automatically transmit.
8. The SINAD measurement should remain at 12dB
– 11.5dB SINAD. If the SINAD measurement drops below 11.5dB
SINAD, re-tune the RX and TX sections of the Duplexer for -65db notch measurement minimum.
Summary of Contents for Liberty RLR-460
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