User's Manual

PINEAPPLE TECHNOLOGY, INC V.6 - ADAPTIVE PRE-CORRECTOR WEB SERVICE OPERATION

DXDPRO-10VH MODULATOR MANUAL

THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND

CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION

V.6 ADAPTIVE PRE-CORRECTOR WEB SERVICE OPERATION (Continued)

C. OPERATION OF ADAPTIVE PRE-CORRECTOR

4. NON-LINEAR PRE-CORRECTOR CONFIGURATION

 Auto run: The instantaneous adaptive non-linear pre-corrector characteristic is applied to the RF

output. The pre-corrector algorithm will run until the set threshold value is obtained for the upper

respectively the lower RF spectrum shoulder. The adaptive pre-corrector algorithm will be

automatically restarted in case the upper and/or lower shoulder performance subsequently drops

below the set threshold.

Adaptive Non-Linear Pre-Corrector Threshold Settings

The threshold values for the adaptive non-linear pre-corrector system‘s ‗Run to target‘ and ‗Auto run’

modes are accessed and set by expanding the ‗Auto-run and run-to-target threshold settings‘ control

(III). Notice that the respective parameter values must be ‗enabled‘ by ticking the associated enable field

in order for the parameter to have any effect on the pre-corrector algorithm.

Adaptive Non-Linear Pre-Corrector Reset Functions

The adaptive non- linear pre-corrector control panel includes two controls for resetting the corrector

characteristic (IV).

There is a choice of two possible reset functions:

 Neutral: The non-linear adaptive pre-corrector is instantly set to neutral characteristic when this

control is operated. It is recommended to start the first adaptive alignment of a new amplifier from

the neutral state.

 Factory: This reset function is intended for future use. The idea is that the transmitter

manufacturer is allowed to save an adaptively derived curve characteristic and later retrieve this

specific characteristic by activating the ‗factory‘ reset.

III