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MC-Series System Installation & Testing
Datafill Parameters & Optimization Procedures
RadioFrame Networks, Inc.
55
since it is the minimum settable value for this parameter bringing it as close as possible to the
actual value.
actual value.
6.3.5
rxTxGain = 10
This parameter is the difference in gain between the receiver and transmit antenna paths
expressed in dB. The MC-Series System does not use this parameter directly, and the true
rxTxGain is actually 0dB. RFN recommends this setting to help offset the Pto value when used in
making handover calculations.
expressed in dB. The MC-Series System does not use this parameter directly, and the true
rxTxGain is actually 0dB. RFN recommends this setting to help offset the Pto value when used in
making handover calculations.
6.3.6
defaultTxPower = 9.0 (refer to release notes for range information)
This is the average output power of the PA, measured at the RF connector of the BR. For the
MC-Series System, this parameter can be used to adjust the output power of the system. The
MC-Series System has a different range of output levels than a standard Motorola EBTS, and as
such, these values will map to a different set of actual Tx output power levels. This value can be
set from 1.3 (watts) to 70 (watts), however, Quad BRs configured for 4 channels cannot exceed
10.5 (watts). Therefore, the recommended range is limited to 8.4 through 9.5, which allows a
power adjustment range of 11.5 dB.
MC-Series System, this parameter can be used to adjust the output power of the system. The
MC-Series System has a different range of output levels than a standard Motorola EBTS, and as
such, these values will map to a different set of actual Tx output power levels. This value can be
set from 1.3 (watts) to 70 (watts), however, Quad BRs configured for 4 channels cannot exceed
10.5 (watts). Therefore, the recommended range is limited to 8.4 through 9.5, which allows a
power adjustment range of 11.5 dB.
The transmit power out at the top of the rack (TOR) is dependent on the site datafill as well as the
attenuator settings on the RF Shelves. Each RF Shelf has a default attenuator setting, calibrated
at the time of manufacture and labeled on the front of the RF Shelf, that provides 0 dBm TOR
output power per carrier when the datafill defaultTxPower value is set to 9.0.
attenuator settings on the RF Shelves. Each RF Shelf has a default attenuator setting, calibrated
at the time of manufacture and labeled on the front of the RF Shelf, that provides 0 dBm TOR
output power per carrier when the datafill defaultTxPower value is set to 9.0.
The defaultTxPower parameter can take on values between 5 and 75. However, only a range of
these values will result in an actual power output change in the MC-Series System. The following
table summarizes the mapping between the defaultTxPower value and the TOR transmit power
per carrier, for a given RF Shelf attenuator setting.
these values will result in an actual power output change in the MC-Series System. The following
table summarizes the mapping between the defaultTxPower value and the TOR transmit power
per carrier, for a given RF Shelf attenuator setting.
Table 3
TOR output power is based on the DefaultTxPower and the Attenuator setting
DefaultTxPower Setting
(datafill parameter)
Tx Attenuator Setting (dB)
Top of the Rack (TOR)
Output Power (dBm)
TxAtten +5
9.5 and higher
TxAtten - 5
+10
TxAtten +0
9.0 (default)
TxAtten - 10
+10
TxAtten -1
8.9
TxAtten - 10
+9
TxAtten -6
8.4 and lower
TxAtten - 10
+4