Chapter 1 Overview
Accessories and options
WCDMA Options Version 6.20
33
Antennas for use on the 4400
When there is a need to perform quick basic tests on a mobile, an antenna might
be good to have. However, there are a couple of drawbacks using an antenna for
real measurements. Section Cabling provides you with all the technical back-
ground information.
If you need to perform reproducible measurements without having the possibility
of using a RF adapter cable, we recommend to work with the optional RF Shield.
This is a metal box that covers the mobile under test and contains the Antenna
Coupler. This Antenna Coupler carries the mobile under test and provides
antennas for all mobile phone frequency ranges.
The RF Shield keeps radio interference away from the air connection. Together
with a coupling loss table, the achievable measurement quality is as good as
using a cable.
The RF Shield is available with either a TNC-type or N-type connector.
NOTE
To connect any RF adapter to the 4400’s N-type RF in/out socket, you will
need the optional RF-click to N-type adapter cable.
NOTE
The RF shield package contains both the RF Shield and the Antenna Coupler.
Antennas on the
4400
Antenna Coupler
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