User Guide

SA-128 RF coupler

SA-128 is an RF coupler for WCDMA and GSM RF testing. It is used

together with the product-specific flash adapter.

The following table shows attenuations from the antenna pads of the

mobile terminal to the SMA connectors of SA-128 . The setup used for

measuring the values is SA-128 + FS-33 + CU-4.

•

Attenuation values for inductive RF coupler SA-128

Band Channel Attenuation TX Attenuation RX

GSM 850

128 6.7 6.6

190 5.3 6.2

251 4.2 6.3

GSM 900

975 2.2 6.3

37 2.1 6.6

124 2.1 7

GSM

1800

512 6.6 9

700 5.9 10

885 5.5 9.3

GSM

1900

512 5.4 8.9

661 5.5 8.6

810 5.8 6.9

WCDMA

Band I

9612 5.1

9750 4.4

9888 3.6

10562 3.4

10700 3.7

10838 6.1

General tools

The table below gives a short overview of service tools that can be used for testing, error analysis and repair

of product RM-176, refer to various concepts.

RM-176

Nokia Customer Care Service Tools and Service Concepts

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