Aaronia NF-5030S Manual page 21

Table of Contents

6.0 Manual frequency selection

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.

Table of Contents

Spectran nf