Comtech EF Data CDM-760 - Dynamic Predistortion (DPD)

Serial Interface Operation Revision 3
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
8–47
8.5.15 Dynamic Predistortion (DPD)
Parameter Type
Controller-to-Target
Instruction Code and
Qualifier
Arguments for
Command or
Query
Description of Arguments
(Note that all arguments are ASCII numeric codes from 48 to 57)
Target-to-Controller
(see Description of Arguments)
Command Query
Response to
Command
Response to
Query
Dynamic
Predistortion
(DPD) Mode
PDM=
PDM?
1 byte, value of 0
or 1
Command or Query.
Sets DPD mode in the form x, where:
0=Off
1=Local
2= Remote
NOTES:
1) DPD may be enabled only if the optional plug-in hardware CnC card has been installed AND a DPD FAST option is
unlocked.
2) CnC mode must be OFF, and the Tx symbol rate set within the allowable range. See DPD spec for minimum Tx
symbol rate.
3) Maximum Tx symbol rate is determined by constellation type and DPD Mode setting, and/or installed FAST options.
(Read EID to decode the installed options for the modem.)
PDM=
PDM?
PDM*
PDM#
PDM=x