FCC Requirements. The operation of the satellite network elements with regard to RF Spectrum issues are governed by national regulatory rulings. For operation within the US, these rulings are issued by the FCC. For operation within Canada, they are issued by Industry Canada. Both agencies have allowed ATC operation in conjunction with MSS operation. The FCC rules pertaining to operation of the satellite network are contained in 47CFR part 25. 1.6.1 Out of Channel/Out of Band Emissions The FCC rules contained in 47 CFR 25.202 must be met with respect to out of channel emissions. Specifically, the mean power of emissions shall be attenuated below the mean output power of the transmitter in accordance with the following rules: 1. In any 4 kHz band, the center frequency of which is removed from the assigned frequency of channel/band by more than 50% up to and including 100% of the authorized bandwidth: 25 dBc 2. In any 4 kHz band, the center frequency of which is removed from the assigned frequency of channel/band by more than 100% up to and including 250% of the authorized bandwidth: 35 dBc 3. In any 4 kHz band, the center frequency of which is removed from the assigned frequency of channel/band by more than 250% of the authorized bandwidth: An amount equal to 43 dB plus 10 times the logarithm to the base 10 of the transmitter power in ▇▇▇▇▇, i.e. 43 + 10 LOG10 [P (W)] dB
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Sources: Contract (Terrestar Corp)
FCC Requirements. The operation of the satellite network elements with regard to RF Spectrum issues are governed by national regulatory rulings. For operation within the US, these rulings are issued by the FCC. For operation within Canada, they are issued by Industry Canada. Both agencies have allowed ATC operation in conjunction with MSS operation. The FCC rules pertaining to operation of the satellite network are contained in 47CFR part 25.
1.6.1 Out of Channel/Out of Band Emissions The FCC rules contained in 47 CFR 25.202 must be met with respect to out of channel emissions. Specifically, the mean power of emissions shall be attenuated below the mean output power of the transmitter in accordance with the following rules:
1. In any 4 kHz band, the center frequency of which is removed from the assigned frequency edge of channel/band by more than 50% up to and including 100% of the authorized bandwidth: 25 dBc
2. In any 4 kHz band, the center frequency of which is removed from the assigned frequency edge of channel/band by more than 100% up to and including 250% of the authorized bandwidth: 35 dBc
3. In any 4 kHz band, the center frequency of which is removed from the assigned frequency edge of channel/band by more than 250% of the authorized bandwidth: An amount equal to 43 dB plus 10 times the logarithm to the base 10 of the transmitter power in ▇▇▇▇▇, i.e. 43 + 10 LOG10 [P (W)] dB
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