Trango Systems TrangoLINK GigaPlus - Individual Command Details

Trango Systems, Inc. GigaPlus User Manual Rev 3.1 146
Individual Command Details
acm
SYNTAX
acm
acm enable < on| off >
acm mod <modulation> mse_im <-40 - 0>
acm mod <modulation> mse_de <-40 - 0>
profile
mse_im
mse_de
QPSK
-20.3
NA
16QAM
-25.3
-18.5
32QAM
-26.3
-21.3
64QAM
-29.2
-24.3
128QAM
-32.1
-27.2
256QAM
NA
-27.2
Configuration Storage: Yes
acm without any parameter will display the current status of ACM
threshold value and enable options.
DESCRIPTION
acm is used to display ACM features parameters including ACM enable, and
MSE values in the improve/degrade threshold tables.
acm enable is used to turn on the adaptive coding and modulation feature.
When enabled, the current TX/RX modulation may shift to different profile
based on the current MSE value and a set of pre-defined MSE degrade and
improve thresholds. The speed command needs to be issued after “acm
enable on/off” command.
ACM is not symmetric and each end (TX/RX) may have different profiles at a
given time depending upon the MSE values on each end.