RadioFrame Networks Inc MCSERIES10 User Manual
MC-Series System Installation & Testing
Scheduled and Unscheduled Maintenance
RadioFrame Networks, Inc.
97
7.9 TOR Tx Measurement Procedure
1
Measure the output from the Tx 1, Tx 2, and Tx 3 connectors at the top of the cabinet using a
digital RF power meter.
digital RF power meter.
NOTE: Test only the Tx 1 connector in an omni configuration.
2
Adjust the power budget of the DAS using the variable TX ATTENUATION knobs on the front
panel of each RF Shelf.
panel of each RF Shelf.
The outside knob adjusts in 10 dB increments, and the inside knob adjusts in 1 dB
increments, up to 50 db maximum.
increments, up to 50 db maximum.
NOTE: The variable attenuators only impact the RF downlink. If large values of attenuation
are required, consider adding external attenuation to the uplink of the Rx port to maintain link
balance.
are required, consider adding external attenuation to the uplink of the Rx port to maintain link
balance.
3
Make sure the Nextel-provided coax jumpers have been swept.
4
Connect the jumpers between the TOR Tx 1 and DAS RF IN, and then connect the jumpers
between the TOR Rx 1 and DAS RF OUT.
between the TOR Rx 1 and DAS RF OUT.
In a sectored MC-Series System, connect the jumpers to the DAS commensurate with the
sector coverage area and hub locations per Nextel design.
sector coverage area and hub locations per Nextel design.
5
Measure the output at the DAS remote unit(s) to verify power budget accuracy.