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9. One of the following three prompts circularly will show at the bottom-left of the screen when the format is
dB.
-
FFT dB level
- CH1 voltage level
- FFT vertical position
10. One of the following two prompts circularly will display at the bottom-left of the screen when the format is
Vrms.
- CH1 voltage level
- FFT vertical position
Press blue/button
VOLTS POSITION
and the screen show as follows:
- CH2 OFF
11. If FFT source is CH2, press blue button
VOLTS POSITION
.
12. One of the following three prompts circularly will display at the bottom-left of the screen when the format
dB.
- FFT dB level
- CH2 voltage level
- FFT vertical position
13. One of the following two prompts circularly will display at the bottom-left of the screen when the format is
Vrms.
Press red button
VOLTS POSITION
and the screen show as follows:
- CH1 OFF
14. FFT source CH1:
If left bottom of the screen displays "
-FFT dB level press red button
VOLTS POSITION
▲
and
VOLTS POSITION
▼
menu button to adjust dB value of each DIV, including 1dB, 2dB, 5dB, 10dB,
20dB
15. If left bottom of the screen displays "
-CH1 voltage level, press red button
VOLTS POSITION
▲
and
VOLTS POSITION
▼
menu button to adjust voltage of CH1, and "CH1 2V~ "shows in left
bottom of the screen.
16. If left bottom of the screen displays " -FFT vertical position, press red button VOLTS
POSITION
▲
and VOLTS POSITION
▼
menu button to adjust the position of the waveform along
vertical position such as "FFT 1.20 DIV (24.0dB)" which means the pink cursor departures from the
center line for 1.20 DIV and "CH1 20dB" shows on the left bottom, that is the arithmetic product is
24.0dB.
The operation steps are the same as FFT source CH2.
17. Press yellow
OPTION
key, the following prompts shows on the left bottom on the screen.
◄
/
►
- CH1 horizontal base
- CH1 trigger level
or
◄
/
►
- CH1 horizontal position
- CH1 trigger level
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