Modem Requirements Clause Samples
Modem Requirements. The Customer may use any digital, SCPC/PSK, MCPC/PSK satellite modem that meets their particular requirements, subject to the following constraints which are designed to ensure excess interference is not experienced by adjacent satellites or by other users of the Satellite:
(1) Digital Modems — Scrambling must be provided to ensure that uniform spectral spreading is applied to the transmitted carrier at all times. A data scrambler built in accordance with ITU Rec. V.35, or a functionally equivalent unit with similar spectrum spreading characteristics, must be employed.
(2) SCPC/PSK and MCPC/PSK — In general, any SCPC/PSK or MCPC/PSK modem which meets all relevant ITU recommendations is allowed, subject to prior approval by Intelsat.
Modem Requirements. Achievement of the service specifications given in Section 1.0 is predicated on the use of a modem that has the following performance characteristics:
(1) it operates at a BER of 10-8 or lower (in the presence of multiple, adjacent, equal amplitude carriers), when the C/N in the occupied carrier bandwidth is 6.8 dB or higher, and;
(2) it operates at a BER of 10-3 or lower (in the presence of multiple, adjacent, equal amplitude carriers), when the C/N in the occupied carrier bandwidth is 3.8 dB or higher. Scrambling must also be provided by the modem to ensure that a uniform spectral spreading is applied to the transmitted carrier at all times. A data scrambler built in accordance with CCITT Rec. V.35, or a functionally equivalent unit with similar spectrum spreading characteristics, must be employed.
Modem Requirements. Achievement of the service specifications given in Section 1.0 is predicated on the use of a modem that operates at a BER of 10-8 or better (in the presence of multiple, adjacent, equal amplitude carriers), when the C/N in the occupied carrier bandwidth is equal to or greater than the C/N listed in column 5 of Table 1. The modem must also provide a BER of 10-6 or better when the C/N in the occupied bandwidth is equal to or greater than the C/N listed in column 6 of Table 1. Scrambling must also be provided by the modem to ensure that a uniform spectral spreading is applied to the transmitted carrier at all times. A data scrambler built in accordance with CCITT Rec V.35, or a functionally equivalent unit with similar spectrum spreading characteristics, must be employed.