Keysight Technologies 8970B User manual

Keysight Technologies

8970B Noise Figure Meter

Security and

Memory Clearing

Notices

© Copyright 2018 Keysight Technologies, Inc.

The information contained in this document is subject to change without notice.

Keysight Technologies makes no warranty of any kind with regard to this material, including but

not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Keysight Technologies shall not be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing, performance, or use of this material.

Manual Part Number

08970-90006

Edition

Edition 1, November 2018

Printed in USA/Malaysia

Published by:

Keysight Technologies, Inc.

1400 Fountaingrove Parkway

Santa Rosa, CA 95403

8970B Noise Figure Meter Security and Memory Clearing 3

8970B Noise Figure Meter Security and Memory Clearing

8970B Noise Figure Meter Security and Memory Clearing

Introduction

8970B memory clearing process requires removal of the processor battery for 15 minutes or longer.

Below are step-by-step instructions for removing this battery. Make sure you use proper ESD

pre-cautions.

Tools Required

— Torx T15 driver

— #2 Phillips screwdriver

Procedure

1. Unplug the 8970B from AC power.

2. Place the instrument upside-down on a flat surface.

3. Remove the bottom cover using Torx T15 driver and #2 Phillips screwdriver.

4. Lift the processor assembly by loosening the two screws and hinge the board away as shown

below:

Figure 1 Battery Location

4 8970B Noise Figure Meter Security and Memory Clearing

8970B Noise Figure Meter Security and Memory Clearing

5. Remove battery shown in the lower-left corner of the processor board. Lift the contact clip and

slide the battery out.

6. After 15 minutes, replace the battery with positive terminal out as shown on the clip.

7. Re-install the processor board and replace the instrument bottom cover.

8. Connect the AC power cord and turn on the instrument.

9. Instrument memory is cleared if error message E80 (lost battery) appears at turn-on.

10.It is NOT necessary to re-enter the ENR tables for noise sources at this point.

11.Connect a noise source to the BNC drive and the RF input (failure to do this will cause an E13

IF calibration failure message).

12.Invoke special function 33.1 to perform the I.F. calibration.

13.You may now calibrate the 8970B as desired for your next measurement.

Contacting Keysight

For assistance, contact your nearest Keysight Technologies Sales and Service Office. To find your

local Keysight office access the following URL, or if in the United States, call the following

telephone number:

http://www.keysight.com/find/assist

1-800-829-4444 (8 am - 8 pm ET, Monday - Friday)

This information is subject to change

without notice.

© Keysight Technologies 2018

Edition 1, November 2018

08970-90006

www.keysight.com

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