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QMultiFlex-400™ Installation and Operating Handbook
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Rx IF/L-Band Input
This is a 50Ω N-Type socket/female connector. The frequency band can be selected
either IF 70MHz/140MHz or L-Band. The carrier signal level at the input of the modem
must be in the following range:
L-band minimum signal level: -140 + 10 log (symbol rate) dBm
IF minimum signal level: -130 + 10 log (symbol rate) dBm
IF/L-band maximum: -68 + 10 log (symbol rate) dBm
The maximum wanted-to-composite power level that is supported with no
implementation loss is defined by the equation:
Maximum wanted-to-composite power level: -102 + 10 log (symbol rate) dBm
The maximum composite power level is +10dBm.
5-9
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