AM technology

Hello, GuiDance.
Provide you with the following information for your reference.
The AM technology used by the OptiX RTN 980L has the following characteristics:

The lowest-efficiency modulation scheme (also called reference scheme or modulation scheme of guaranteed capacity) and the highest-efficiency modulation scheme (also called nominal scheme or modulation scheme of full capacity) used by the AM can be configured.
In AM, when modulation schemes are switched, the transmit frequency, receive frequency, and channel spacing remain unchanged.
In AM, modulation schemes are switched step-by-step.
In AM, modulation scheme switching is hitless. When the modulation scheme is downshifted, high-priority services will not be affected when low-priority services are discarded. The switching is successful even when 100 dB/s channel fast fading occurs.
Thanks!