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Triple-Play Service Deployment

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Chapter 5: Troubleshooting the Premises Wiring<br />

MMaaggnniittuuddee ((ddBBmmVV))<br />

MMaaggnniittuuddee ((ddBBmmVV))<br />

MMaaggnniittuuddee ((ddBBmmVV))<br />

MMaaggnniittuuddee ((ddBBmmVV))<br />

10<br />

0<br />

-10<br />

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0<br />

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-40<br />

-50<br />

-60<br />

0<br />

-10<br />

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0<br />

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NIT Dipole Antenna<br />

87 92 97 102 107<br />

Frequency (MHz)<br />

NIT Living Room<br />

87 92 97 102 107<br />

Frequency (MHz)<br />

NIT Bedroom<br />

87 92 97 102 107<br />

Frequency (MHz)<br />

NIT Computer Room<br />

87 92 97 102 107<br />

Frequency (MHz)<br />

137<br />

Figure 5.16 Spectrum scan of local off<br />

air FM radio frequency band using<br />

dipole antennae connected directly to<br />

test instrument.<br />

Figure 5.17 Noise Immunity Test scan<br />

of FM band in living room. 45db of<br />

shielding effectiveness at 96.1MHz.<br />

Figure 5.18 Noise Immunity Test scan<br />

of FM band in bedroom. 11db of<br />

shielding effectiveness at 96.1MHz.<br />

Figure 5.19 Noise Immunity Test scan<br />

of FM band in living room. 23dB of<br />

shielding effectiveness at 96.1MHz.

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