Procom VOR/ILS Analyzer EVS200 User Manual
Page 56
VOR/ILS Analyzer EVS200
0796.1800.02
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Chapter 3: Operation
Command AM9
command
function
AM9
query AM-modulation depth (voice)
The command AM9 reads the actual AM-modulation depth (voice 300 Hz to 3 kHz) in the ILS / VOR
mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
query:
AM9
am9
e.g.
09.6%
e.g.
09.6%
Command FA2
command
function
FA2
Activating the Fast measurement mode
The command FA2 switches on the fast measurement mode. The command FA2 performs the con-
tinuous measurement and output of the RF level, Bearing, AM30, AM9960, FM-deviation, FM-
Index with transmission speed of 15 measurement value sets (RF level, Bearing, AM30, AM9960,
FM-deviation, FM-Index) per second. This conforms to a time interval of 66 ms. The stated RS-232-
transmission times are related to 19.200 Baud.
The measurement values can be read in and output as a text file corresponding to the terminal pro-
gram.
The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer EVS200.
It must be attended the acceptance of the data transfering rate by the terminal pro-
gram.
The measurement can be stopped through the command FA0 (refer to Command FA0).
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
input:
FA2
fa2
With the command FA2 the echo
mode is automatically switched
OFF.
output form: (RF level
AM30
FM-deviation
FM-Index
RF level:
three-digit with indication (dBm)
example:
-400
122
Modulation depth:
three-digit (%)
example:
304
004
FM-deviation:
four-digit (Hz)
example:
4800
0004
FM-Index:
three-digit
example:
160