This read-write object sets the transmit frequency for both the CDM-570L (L-Band, 950-1950 MHz) and CDM-570 (IF-Band, 50-90 MHz and 100-180 MHz) variants, with 100 Hz resolution. Unlike the CDD-564, which is primarily a receive-side router, this object controls the modem's own outbound carrier frequency, so an incorrect value here means the far-end demodulator will never see this unit's signal at all, regardless of how well the far end's own receive chain is configured or how strong this unit's transmit power is set. For a transponder plan assigning this remote's uplink to a specific frequency, an admin would set this object to exactly that value so the hub's demodulator, tuned to expect that frequency, actually locks onto this unit's carrier.