This read-write object sets the receive code rate to one of eight values mirroring cdm570TxFECCodeRate, from Rate 5/16 (Turbo only) through uncoded Rate 1/1. This must exactly match the code rate the far end is transmitting at, since FEC code rate determines how the demodulator interprets redundancy bits within the received symbol stream -- a mismatch here typically prevents lock entirely rather than producing a partially-degraded but still-usable link. If a hub operator changes their outbound carrier from Rate 3/4 to Rate 7/8 to squeeze out more throughput, every remote receiving that carrier must have this object updated to rate7over8(5) in lockstep, or their demodulators will drop lock the instant the hub's change takes effect.