7. A certain cable signal transmission system is shown. The nominal level at the signal source output is 10 dBm. The signal is amplified before transmission by the line amplifier whose gain is 13 dB. The first section of cable (section A) has a loss of 26 dB, and a booster amplifier with a gain of 20 dB is placed at the output of that section. The second section of cable (section B) has a loss of 29 dB. The system is operated on a matched impedance basis with all effective sources and termination having a resistive impedance of 600 N, and the characteristic impedance of the cable is the same. Determine the gain of the receiver amplifier such that its nominal output level is 6 V across a 600-N termination. 20 dB 26 dB 29 dB 10 dBm 13 dB - ??? Cable Section A Cable Section B Booster Signal Source Line Amplifier Amplifier Receiver Amplifier 6 V R= 600 O

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7. A certain cable signal transmission system is shown. The nominal level
at the signal source output is 10 dBm. The signal is amplified before
transmission by the line amplifier whose gain is 13 dB. The first section
of cable (section A) has a loss of 26 dB, and a booster amplifier with a
gain of 20 dB is placed at the output of that section. The second section
of cable (section B) has a loss of 29 dB. The system is operated on a
matched impedance basis with all effective sources and termination
having a resistive impedance of 600 N, and the characteristic impedance
of the cable is the same. Determine the gain of the receiver amplifier
such that its nominal output level is 6 V across a 600-2 termination.
20 dB
26 dB
29 dB
10 dBm
13 dB
???
Cable
Signal
Source
Booster
Amplifier
Cable
Section B
Line
Section A
Receiver
Amplifier
Amplifier
R= 600 Q
6 V
Transcribed Image Text:7. A certain cable signal transmission system is shown. The nominal level at the signal source output is 10 dBm. The signal is amplified before transmission by the line amplifier whose gain is 13 dB. The first section of cable (section A) has a loss of 26 dB, and a booster amplifier with a gain of 20 dB is placed at the output of that section. The second section of cable (section B) has a loss of 29 dB. The system is operated on a matched impedance basis with all effective sources and termination having a resistive impedance of 600 N, and the characteristic impedance of the cable is the same. Determine the gain of the receiver amplifier such that its nominal output level is 6 V across a 600-2 termination. 20 dB 26 dB 29 dB 10 dBm 13 dB ??? Cable Signal Source Booster Amplifier Cable Section B Line Section A Receiver Amplifier Amplifier R= 600 Q 6 V
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