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4.2.7.2.2. AGC Dynamic Voltage Scaling (SPS E5R25 and Higher)
To program the AGC voltage scaling in non-coherent or coherent mode:
To change the IF level upper threshold to saturate the AGC level
Registry path:
Keyword:
Default setting at delivery:
To change the IF level lower threshold to saturate the AGC level
Registry path:
Keyword:
Default setting at delivery:
To change the AGC Voltage output at IFlevel (dBm) = -CAGLevelMax (value in registry):
Registry path:
Keyword:
Default setting at delivery:
To change the AGC Voltage output at IFlevel (dBm) = -CAGLevelMin (value in registry):
Registry path:
Keyword:
Default setting at delivery:
Examples:
If CAGVoltMax < CAGVoltMin, slope < 0 (red plot)
CAGLevelMax= 0x0 = 0
CAGLevelMin= 0x50 = 80
CAGVoltMax= 0x0 = 0
CAGVoltMin= 0x8
= 8
9
8
7
6
5
4
3
2
1
0
-100
© Safran Data Systems
COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Global
CAGLevelMax
0x0 (for 0dBm)
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Global
CAGLevelMin
0x64 (for -100dBm)
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Global
CAGVoltMax
0xa (for 10 Volts)
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Global
CAGVoltMin
0x64 (for 0 Volts)
=> IF_max = 0dBm
=> IF_min = -80dBm
=> Voltage_max = 0V
=> Voltage_min = 8V
(-CAGLevelMin, CAGVoltMin)
-90
-80
-70
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It cannot be duplicated or distributed without expressed written consent.
If CAGVoltMax > CAGVoltMin, slope > 0 (blue plot)
CAGLevelMax= 0x14 = 20 => IF_max = -20dBm
CAGLevelMin= 0x46 = 70
CAGVoltMax= 0x7 = 7
CAGVoltMin= 0x2
(-CAGLevelMax,
CAGVoltMax)
-60
-50
-40
-30
IF Level dBm
Safran Data Systems
.
Ref.
DTU 100042
Is.Rev.
5.17
Date:
Dec.
03, 2021Sept. 30, 2021
=> IF_min = -70dBm
=> Voltage_max = 7V
= 2
=> Voltage_min = 2V
-20
-10
0
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