Rohde & Schwarz EVSG1000, User Manual

Page: 91 / 311

Numeric Measurement Modes
R&S
®
EVSG1000
91 User Manual 1178.6227.02 ─ 04
Remote command:
MEASTIME
on page 193
5.4 COM Mode (Option R&S EVSG-K6)
Access : [Mode] > "COM"
Access VNC : [m] > Down arrow key
If the COM Analysis option (R&S EVSG-K6) is installed, signals from VHF/UHF com-
munication channels can be analyzed with the R&S EVSG1000. Very high frequency
(VHF) and ultrahigh frequency (UHF) communication is used for air traffic control (ATC
COM), for example.
The COM mode can be used to analyze both the civil aircraft band and military fre-
quencies, with channels spaced at 25
kHz or 8.33 kHz.
The R&S EVSG1000 can perform COM measurements on signals containing one or
two carriers (see Chapter 5.1.4.1, "Channel and Frequency Configuration" ,
on page 56). It assumes a 1000 Hz test tone is being sent.
Remote command:
MODE_COM
on page 252
5.4.1 COM Measurement Results
The COM measurement provides the following results. For measurements on two fre-
quencies, the results for the individual frequencies and the sum of both are displayed.
You can display graphical results directly from the COM mode by selecting the softkey
in the "Meas" menu. In this case, the settings for the current measurement are applied
to the graphical results.
To return from the graphical results to the COM mode, select "Return" ([F8]).
For details on the graphical results, see:
●
Chapter 6.1, "RF Spectrum Mode (Option R&S EVSG-K10)" , on page 100
●
Chapter 6.2, "IF Spectrum Mode (Option R&S EVSG-K10)" , on page 105
●
Chapter 6.3, "AF Spectrum Mode (Option R&S EVSG-K11)" , on page 110
●
Chapter 6.4, "AF Time Domain Mode (Option R&S EVSG-K12)" , on page 115
Remote command:
MODE_COM
on page 252
COM Mode (Option R&S EVSG-K6)