
About This Guide
Purpose and scope
vi 4921 RF Shield 1.00
Purpose and scope
The purpose of this guide is to help you successfully use the 4921 RF Shield
features and capabilities. This guide includes task-based instructions that
describe how to handle and use the 4921 RF Shield. Additionally, this guide
provides a description of Willtek’s warranty, services, and repair information,
including terms and conditions of the licensing agreement.
Assumptions
This guide is intended for novice, intermediate, and experienced users who want
to use the 4921 RF Shield effectively and efficiently. We are assuming that you
have basic computer and mouse/track ball experience and are familiar with basic
telecommunication concepts and terminology.
Related information
Use this guide in conjunction with the following information:
4916 Antenna Coupler: user’s guide, M 292 015.
Technical assistance
If you need assistance or have questions related to the use of this product, call
one of Willtek’s technical assistance centers. You can also contact Willtek by
Table 1 Technical assistance centers
Region Phone number Fax number
Europe, Middle East,
Asia, Africa
+49 (0) 89 996 41 386 +49 (0) 89 996 41 440
Americas +1 973 386 9696 +1 973 386 9191
China +86 21 5836 6669 +86 21 5835 5238