Product information and planning
MPR-e 145
Main functions
• 1.Tx block:
→ IF Tx Quadrature modulator
→ IF_Tx Synthesizer
→ RF Up-Converter
→ Output power management
• 2.Tx_Rx Common block:
→ RF_LO Synthesizer
• 3.Rx block:
→ LNA
→ RF Down Converter
→ First IF amplification and overload management
→ First IF down conversion
→ Second IF amplification and filtering (not present in 7/8 GHz)
→ Quadrature demodulator
→ Baseband filter and AGC loop
RSSI monitoring point
The RSSI is available on a connector used to manually point the antenna on the field.
The higher the voltage, the higher the RSSI and the better aligned the antenna is. The RSL is
measured using a is used a voltmeter connected to the MPR-e with a service kit cable.
1. Without any received signal (Tx mute on the remote MPR-e for example), the RSL value displayed may be
more than -100 dBm. This depends on the channelisation/modulation settings.
Table 67: RSSI
Units Measurement (with MPT-HC V2/MPT-XP/9558HC)
Service kit cable
(Vdc)
5 4.71 4.12 3.5 2.9 2.3 1.71 1.11 0.59 0.14
RSL (dBm) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100
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