Spectrum Analyzer Menus
2715 User Manual
6–13
8. Select the antenna number (1 through 5) that matches the antenna you are
using.
9. Press [
a
] to return to REFERENCE LEVEL UNITS.
10. Press [5] to select DBUV/M IN WFM x.
11. Press [INPUT] [6] and enter any external gain or attenuation (skip this step
if none is present).
This number should include the gain or attenuation of any external amplifier
or filter, and the losses of any balun that are not included in the manufactur-
ers K factor table for your antenna.
12. Connect your antenna and proceed with your measurement. To obtain a
measure of the maximum signal strength, save the measurement in the A or
B register and select MAX HOLD. Rotate the antenna until the maximum
reading is obtained.
13. Turn on the marker and use it to read out the field strength directly in
dB
m
V/m or V/m.
While using the dB
m
V/m unit, you cannot unsave the destination register or use
the LIN, FM DEMODULATOR, or EXTERNAL SOURCE features (you also
cannot select the dB
m
V/m unit while using these features). Attempting to do so
will result in an error message.
If you turn off the destination register while using dB
m
V/m, the message
DBUV/M MEASUREMENT MODE IDLE is displayed.
The dB
m
V/m measurement is not made while idling, and you still cannot unsave
the destination register or use the LIN, FM DEMODULATOR, or EXTERNAL
SOURCE features.
To disable the dB
m
V/m measurement mode, select any other reference unit.
If you are using an antenna for the first time, you need to create an antenna table.
From time to time you may also need to alter an existing table. Whether creating
new antenna tables or changing old tables, all editing takes place in the local
buffer or editing buffer using the EDIT ANTENNA TABLE selection from the
DBUV/M SETUP on the Input menu. New antenna data is written directly to the
buffer prior to permanent storage; old data is loaded into the buffer prior to
editing and restorage. If you wish to enter new antenna data or change old data,
use the following procedure:
1. Press [INPUT] to call up the Input menu.
2. Press [9] to select DBUV/M SETUP from the INPUT menu.
3. Press [0] to select item EDIT ANTENNA TABLE.
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Страница 18: ...Preface xiv 2715 User Manual ...
Страница 19: ...Introduction ...
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Страница 24: ...Introduction 1 4 2715 User Manual ...
Страница 25: ...Getting Started ...
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Страница 47: ...Operating Basics ...
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Страница 71: ...Dedicated Controls ...
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Страница 109: ...CATV Measurements ...
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Страница 275: ...Appendices ...
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Страница 302: ...Appendix B Broadcast AM FM and TV Signal Sources B 2 2715 User Manual ...
Страница 318: ...Appendix C System Messages C 16 2715 User Manual ...
Страница 334: ...Appendix E External Input and Output E 12 2715 User Manual ...
Страница 339: ...Glossary and Index ...
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