tokens: Modulation with suppressed carrier shall be used rather than residual carrier phase modulation for telemetry in the UHF ( 2 200 MHz - 2 300 MHz ) , and SHF ( 8 025 MHz - 8 400 MHz and 8 400 MHz - 8 500 MHz ) bands in the following cases : 1 . Where application of clause 6.1 can lead to power flux densities at the carrier frequency in excess of the limits specified in clause 5.5.3 . 2 . In any case for symbol rates as defined by Figure 6 - 2 in excess of 1 Msps .