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Chapter 9 - Electromagnetic Interference Measurement
10713 Vxx.11
9.8
Setting the identifier
The measuring instrument has a help setting for setting the identifier of the frequency identification
generator. Application note “AN002 – Measuring electromagnetic interference” contains information
on how to set and change the identifier for KFG 242.
If a character received from the identifier is marked showing that this character is one that can be
changed with two buttons on KFG 242, this character will be displayed inverted on the display. If no
character is displayed inverted (normal mode), it means that there is no character that is currently
selected for modification.
9.9
Remote supply
The measuring receiver can provide a remote power supply for active receiving antennas via the
RF input.
Antennas EMI 240 (with the EMI 240/V pre-amplifier) and EMI 241 require a supply of 5 V.
The supply is short circuit-proof and provides a maximum current of 100 mA. A red LED in the
keypad area at the device (DC OUT) indicates that the supply is on.
Figure 9-4 EMI Remote supply
Important! Before switching on a remote supply, always check the compatibility of the
system connected to the remote supply that is selected. Otherwise,
terminating resistors may be overloaded or active components may be
destroyed.
9.9.1
Setting the remote supply voltage
Press the
MODE
key to open the drop-down menu. Use the
DC out
menu item to access a
selection menu where you can choose between 0 V and 5 V.
