Chapter 1 Overview
Connecting test leads
4 WCDMA Options Version 6.20
Connecting test leads
Crash course – Starting a test is easy!
Cabling – Connecting a mobile to the 4400
Crash course To perform a test on the 4400, keep to the following procedure:
1 Switch on the 4400 using the standby button on the front panel.
2 Select the required communication system, e.g. GSM or CDMA.
3 Connect the mobile to the 4400.
4 Switch on the mobile and set up a call.
5 Navigate to the required test menu.
Cabling For precise measurements, we strongly recommend to use an RF adapter cable
between the mobile under test and the Willtek 4400. Mobile-specific RF adapter
cables are available from the mobile’s manufacturer or from Willtek. Please
contact your local Willtek representative.
However, should the adapter cable for your mobile not be at hand, the air
connection offers a simple-to-use alternative for quick tests. With the optional
RF Shield, precise measurements can be achieved without interference.
Don’t exceed the maximum RF power level
Before connecting any RF equipment to the 4400, please check that the max-
imum input power level is not exceeded. The maximum input power level is
indicated on the front panel of the 4400, just besides the RF in/out socket.
Don’t exceed the maximum RF power level
Before connecting any RF equipment to the 4400, please check that the max-
imum input power level of the 4400 is not exceeded in any case. Otherwise,
the highly sensitive input stage may be destroyed immediately. The maximum
input power level is indicated on the front panel of the 4400, just besides the
RF in/out socket.
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