4RF Aprisa SR+ - Page 139

Managing the Radio | 139
Aprisa SR+ User Manual 1.11.1
ACM Control
This parameter enables / disables Adaptive Code Modulation in the receive direction.
When ACM is enabled (ACM Control set to Standard or Fast), the radio sends a modulation type
recommendation to the peer radio based on the signal quality for each individual radio.
Option
Function
Disabled
Disables Adaptive Code Modulation for the receive direction.
The radio does not send a modulation type recommendation to any
other radio.
Fast
Enables Adaptive Code Modulation for the receive direction.
The ACM will switch down one ACM level if an errored packet is
received.
The ACM will switch up when the link quality exceeds the
performance threshold.
This option maintains the highest network speeds for as long as
possible.
Standard
Enables Adaptive Code Modulation for the radio receive direction.
The ACM will switch down one ACM level if the link quality
degrades in advance of the level where errored packets would be
expected.
The ACM will switch up when the link quality exceeds the
performance threshold.
This option preserves packet integrity but reduces network speeds.
The default setting is Fast.