16 Installation Note E8356-90001
In This Guide
Installing Your Analyzer
-
— ECal module (separate product)
Step 5. Install Ferrite Cores
CISPR 11 is an international regulation that specifies the maximum level of
frequency emissions that can originate from an electronic device. The
regulation is designed to minimize the interference that one electronic device
may have with another.
Frequency emissions can occur when cables are connected to an electronic
device. To minimize this, try to use high-quality cables with built-in molded
ferrite cores, with the core closest to the PNA. If cables with built-in cores
cannot be found, use one of the clamp-on ferrite cores that are included with
the PNA. It is especially important to use these cores on USB cables and LAN
cables.
The core should snap closed to grip the cable firmly, but without damaging the
cable. Attach the core to the cable as close as possible to the PNA connector
end. Cable ties are included to help ensure that the ferrite cores remain in
place
Figure 4
Cable
Consider ergonomics when locating the mouse and keyboard.
Do NOT connect an ECal module to the USB until after the PNA is started.
Once the PNA is started, press the front panel Help button to learn about
'Connecting an ECal module for the first time'.
