Numeric Measurement Modes
R&S
®
EVSF1000
66
User Manual 1178.6410.02 ─ 05
is 10
ms, that is: 100 per second.) If the defined measurement time is longer, the val-
ues captured internally in that interval are averaged and only the average value is dis-
played.
Note that the measurement time determines the minimum interval for values to be
stored during recording (see
Enter the time in milliseconds.
Remote command:
6.3
VOR Mode (Option R&S
EVSG-K2)
Access VNC
: [m] > Down arrow key
If the VOR Mode option (R&S
EVSG-K2) is installed, signals from VOR systems can
be analyzed with the R&S
EVSF1000.
Remote command:
6.3.1
VOR Basics
Some background knowledge on basic terms and principles used in VOR measure-
ments is provided here for a better understanding of the required configuration set-
tings.
6.3.1.1
VHF Omni Directional Radio Range (VOR)
Very high frequency (VHF) omnidirectional radio range (VOR) is a radio navigation sys-
tem for short and medium distance navigation. The VOR radio navigation aid supplies
the aircraft with directional information, angle information relative to the magnetic north
from the site of the beacon. Thus, it helps aircraft to determine their position and stay
on course. The range covered by a VOR station is ideally a circle around the VOR sta-
tion with a radius depending on the flight altitude.
A VOR system consists of a ground transmission station and a VOR receiver on board
the aircraft.
Ground transmitter
The transmitter stations operate at VHF frequencies of 108
MHz to 118
MHz, with the
code identification (COM/ID) transmitting on a modulation tone of 1.020
kHz. It emits
two types of signals:
●
An omnidirectional reference signal (REF) that can consist of two parts:
VOR Mode (Option R&S
EVSG-K2)
