CRITICALPOINT 700/800MHZ BDA/DAS/BBU V3 USER MANUAL
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568 Gibraltar Drive, Milpitas, CA 95035 | +1 408 526 0180
Rev. 1-0-2 Rev. Date: 11-1-2024
Distance (Mi) to Donor Site
Provided by the System Design or Manual Measurement
The distance in miles between the donor site and BDA
Donor Antenna.
Example: 1 mile / 95.19dB
Used in calculations to estimate the DL and UL Free Space
pathloss between the donor site and BDA.
Manual Antenna Isolation Measurement
Provided by RF technician manual measurement
The isolation between the donor antenna and indoor
antenna branches.
Example: 120dB isolation
Used to determine the DL/UL MAX Gain of the BDA.
Follows the code requirement to provide 20dB margin
between Gain and Isolation.
Manual DL Channel Input Measurement
Provided by RF technician manual measurement
The Channel Power received from the donor antenna
measured at the donor input of the BDA.
Example: Control Channel Power measured at -50dBm
Used in calculations to estimate the DL MAX Gain.
Manual DL Composite Input Measurement
Provided by RF technician manual measurement
The Total Average Composite Power from the donor
antenna measured at the donor input of BDA.
Example: Average DL Composite Power across passband
measured at -40dBm using MAX Hold feature for 10 minutes
Used to determine if the DL Input Power will be too high and
require attenuation.
Manual UL Input Range Measurement
(Maximum and Minimum)
Provided by RF technician manual measurement
The range of Input Signal Level that will be seen at the BDA
mobile input from portable radios within the coverage area.
Example:
Maximum: -30dBm received from Near radio
Minimum: -70dBm received from Far radio
Used in calculations to estimate the UL MAX Gain.
Inbuilding and Building Perimeter Benchmark Testing
Provided by RF technician manual measurement
The preliminary building RF coverage results before the
BDA system is turned ON.
Example: Grid Test results from preliminary walk test
Used for coverage dominance tuning. Inside the building,
the indoor signal should dominate the macro signal. Around
the outside perimeter of the building, the macro signal
should dominate over the signal coming from the indoor
DAS.
List of Channels in the Radio System/System
Operational Frequency Passband
Provided by AHJ and/or FCC License Holder.
For Class A BDA applications, the complete list of radio
channels used by the radio system. For Class B BDA
applications, the system operational Frequency Passbands
are required to be known (Start and Stop Frequency).
Used to program the digital filter passbands of the BDA.
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