Leave the the entry by pressing the menu key and you are back in the main
menu.
Please leave then the main menu and all settings are saved. The sweep (mea-
surement) will be carried out with our specified parameters.
All following measurements
only
use the specified frequency (sweep) range
from
20kHz to 70kHz
, that means all operating modes (exposure limit display
and spectrum display) now
only
refer to this specified frequency range!
Now you can measure
precisely which fields with which frequencies
are
being generated by your monitor or TV set.
Next, experiment a bit: For example, change the Sampletime (key 8) to
100mS or 1S, or change the filter (key 9) to 10kHz or 1kHz and observe the
displayed changes.
You will notice very soon a simple regularity:
1.) The higher the sampletime the more accurate are the measured values
but the longer time takes the sweep
2.) The bigger the RBW the lower is the required sampletime to get accu-
rate measurements
Please note that only
full kHz
will be displayed for all frequency redisplays in the
menue because the display is limited to 4 digits (9999). For example an entry of
50Hz will result a 0 (0kHz) display and 6,788kHz will be displayd as 7kHz (roun-
ded).
HINT:
You can permanently save this setup as a custom preset as a “hotkey“ of
your choice. Find more details on the following pages.
HINT2:
You can switch between the modes
Spectrum analysis
,
Exposure
limits
and
Audio
at any time by pressing the Enter key.
Further hints and other information related to setting a frequency range
and to other options available in the main menu are available in the sec-
tion “The main menu“ on the following pages.
6.0 Manual frequency selection
Firmware BETA50 / © 2005-2013 by Aaronia AG, DE-54597 Euscheid, www.aaronia.de
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