Download Enigma video processor User manual

Code: ENIGMA III User Manual
Edition: 1 Revision: 4
Date: 19/12/2008
Page: 62/97
Type:
Default:
float
0.0
Remark: The offsets are only used for lowpass receivers (video processing) as the A/D converter offset is
effectively canceled by the matched bandpass filter.
6.13 PRFTable
Format of argument: staggering prf1 prf2 ... prf8
If staggering=0, only prf1 is used, otherwise dual PRF mode is used.
Eight PRF values are reserved for four pulse widths. PRF values are paired, every pair assigned for the
corresponding pulse width. Higher and lower PRFs are determined automatically, order in the pair is not
important. Default PRF is 600 for all pulse widths, no staggering.
Example:
set PRFTable=1 600 400 1200 800 300 200 600 400
6.13.1 PrfLimits
The duty cycle of the magnetron must not be exceeded. In case of an old radar which uses a now obsolete
PFN the PRF must also not be too low, as this could damage the PFN.
Format of argument: 4x low PRF and 4x high PRF limits
Default: 250 250 250 250 400 400 400 400
This parameter has to be set to ensure that the PRF (and the resulting duty cycle when switching PRF) is
hardware limited by the signal processor.
Current pulse width is choosen by parameter PulseWidthIndex.
6.14 PulseWidthIndex
Index of the current pulse width. It is in range 0-3.
Type:
Default:
integer
0
6.15 NOISEThreshold
Positive value in dB.
Type:
Default:
float
0.0
GAMIC Proprietary