User Guide

SA-138 RF coupler

SA-138 is an RF coupler for GSM RF testing. It is used together with

SS-46 and SS-62.

The following table shows attenuations from the antenna pads of the

mobile terminal to the SMA connectors of SA-138:

•

Band Tuning

channel

Attenuation RX

(dB)

Attenuation

TX(dB)

GSM 900 38 7 11.7

124 7 10.9

975 9 12.9

GSM 1800 512 9 12.5

698 9 10.7

885 9 10.1

GSM 1900 512 9 10.4

661 10 10.9

810 10 11.6

General devices

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

repair of product RM-436. For the correct use of the service devices, and the best effort of workbench setup,

please refer to various concepts.

RM-436

Service Devices and Service Concepts

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