Chapter 1 Overview
Accessories and options
34 WCDMA Options Version 6.20
MS Power Supply Option and Current Measurement Option
The MS Power Supply is an option that simulates the power supply (battery) of
the mobile under test. Some of the benefits are:
– It can be used to replace an extra power supply, which may be expensive and
consumes space on the desktop or in a rack.
– As with any simulated battery, you can set operating, under or overvoltages
in a wide range to check the mobile’s reaction to that on the RF side.
In conjunction with the Current Measurement option, there are even more appli-
cations feasible to test the mobile phone:
– You can measure the average and peak current the mobile draws from the
battery (e.g. when it transmits a burst).
– Even a current vs. time measurement with graphical display can be obtained.
– Last but not least, the average power requirement is calculated from the
measurement results.
RF Shield
Accessory Willtek order number
Antenna for GSM 900 with TNC
connector
M 860 261
Antenna for GSM 1800/GSM 1900
with TNC connector
M 860 262
4916 Antenna Coupler M 248 641
4921 RF Shield (N)
(including RF cable N – N)
M 248 346
Rear panel for RF Shield customisation M 300 850
RF Shield Package
(4921 RF Shield, 4916 Antenna
Coupler)
M 248 349
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