R&S SMA100B - Page 146

Avionic standards
R&S
®
SMA100B
146User Manual 1178.3834.02 ─ 09
Carrier Frequency Mode
Sets the mode for the carrier frequency of the signal.
Select "Carrier Frequency Mode > ICAO" to set a standard ILS frequency channel. If
you want to couple carrier frequencies of ILS glide slope and localizer components,
enable Sync with Glide Slope/ Sync with Localizer.
"User Defined"
Activates user-defined variation of the carrier frequency.
"ICAO"
Activates variation in predefined steps according to standard ILS
transmitting frequencies (see Table 6-2).
Remote command:
[:SOURce<hw>]:ILS[:GS|GSLope]:FREQuency:MODE on page 608
Carrier Frequency
Requires "Carrier Frequency Mode > User Defined".
Sets the carrier frequency of the signal.
Remote command:
[:SOURce<hw>]:ILS[:GS|GSLope]:FREQuency on page 607
ICAO Channel
Requires "Carrier Frequency Mode > ICAO".
Sets the ICAO channel and the corresponding transmitting frequency.
If avionic standard modulation is activated and you change the "RF Frequency", the
frequency value of the closest ICAO channel is applied automatically. The "ICAO
Channel" is also updated.
For an overview of the ILS ICAO channel frequencies, see Table 6-2.
Remote command:
[:SOURce<hw>]:ILS[:GS|GSLope]:ICAO:CHANnel on page 608
Sync with Glide Slope/ Sync with Localizer
Activates synchronization of the ILS glide slope with the ILS localizer carrier frequency
or vice versa.
If "Carrier Frequency Mode > User", the ILS glide slope carrier frequency is applied to
the ILS localizer carrier frequency or vice versa.
If "Carrier Frequency Mode > ICAO", the ILS glide slope ICAO channel is applied to the
ILS localizer ICAO channel or vice versa. The ILS glide slope/localizer frequency of the
ICAO channel (Table 6-2) is set automatically.
Remote command:
<subsystem>:FREQuency:SYNChronize:STATe on page 599
EXT AM
Enables/disables additional modulation from an external source. The external signal is
input via the Ext connector.
"Off"
Selects the internal modulation source for the avionic standard modu-
lation.
ILS configuration and settings