Rohde & Schwarz SME02 - Page 112

Analog Modulations SME
1038.6002.02 2.66 E-13
BEARING ANGLE
Input value of the phase angle between the 30-Hz VAR signal and the 30-Hz
reference signal.
IEC-bus command SOUR:VOR 0deg
DIRECTION
Selection of the reference position of the phase information.
FROM Selection of the beacon as a reference position. The angle set
under BEARING ANGLE corresponds to the angle between
the true north and the connection line between beacon and
airplane.
TO Selection of the airplane position as a reference position. The
angle set under BEARING ANGLE corresponds to the angle
between the true north and the connection line between
airplane and beacon.
IEC-bus command SOUR:VOR:DIR FROM
VAR/REF
FREQUENCY
Input value of the frequency of the VAR and the REF signal.
IEC-bus command SOUR:VOR:VAR:FREQ 30
VAR DEPTH
Input value of the AM modulation depth of the 30-Hz VAR signal.
IEC-bus command SOUR:VOR:VAR 30PCT
SUBCARRIER
FREQUENCY
Input value of the frequency of the FM carrier.
IEC-bus command SOUR:VOR:SUBC 9960
SUBCARRIER DEPTH
Input value of the AM modulation depth of the FM carrier.
IEC-bus command SOUR:VOR:SUBC:DEPT 30PCT
REF DEVIATION
Input value of the frequency deviation of the REF signal on the FM carrier.
IEC-bus command SOUR:VOR:REF 480
VOR DEFAULT
SETTING
Call the VOR default setting.
The default setting corresponds to the setting represented in Fig. 2-33 except
for the MODE setting (=NORM). The selection of the CARRIER FREQ KNOB
STEP parameters is not changed by calling this function.
IEC-bus command SOUR:VOR:PRES
COM/ID STATE
Switching on/off an additional communication/identification signal (COM/ID
signal).
IEC-bus command SOUR:VOR:COM ON
COM/ID FREQUENCY
Input value of the frequency of the COM/ID signals.
IEC-bus command SOUR:VOR:COM:FREQ 1020
COM/ID DEPTH
Input value of the AM modulation depth of the COM/ID signals.
IEC-bus command SOUR:VOR:COM:DEPT 10PCT