Kenwood TS-990S, Instruction Manual

Page: 166 / 290

8 AUDIO SCOPE
8-2
Index Contents
CHANGING THE AUDIO SCOPE FREQUENCY DISPLAY
SPAN
The displayed frequency span for the audio scope can be
toggled between 3 kHz and 8 kHz. You can configure the
frequency display span following the configuration for the
filter bandwidth or the frequency to be observed.
[F1]~[F7]
1 Press [RF/AF] (F1) on the Bandscope screen to open
the Audio Scope screen.
If [RF/AF] (F2) is unavailable in the key guide for function
keys, press [MORE] (F1) to alternate the key guide.
2 Press [SPAN] (F4) to select the frequency display
span.
• Each time you press [SPAN] (F4), the frequency toggles
between 3 kHz and 8 kHz.
• With the frequency display span of 3 kHz, the frequency
step size will be 0.5 kHz and the audio scope will appear
with six frequency steps in the horizontal direction.
• With the frequency display span of 8 kHz, the frequency
step size will be 1 kHz and the audio scope will appear with
eight frequency steps in the horizontal direction.
• The default is "3 kHz".
CHANGING THE LEVEL OF THE OSCILLOSCOPE
The amplitude of the waveform will change if the signal
level applied to the oscilloscope is changed. Optimizing
the amplitude of the waveform into an easy-to-see size will
make it easy to observe the waveform.
1 Press [RF/AF] (F2) on the Bandscope screen to open
the Audio Scope screen.
2 Press [LEVEL] (F7) to change the signal input level
• Each time you press [ATT] (F3), the level cycles through
dB > -10 dB > -20 dB > -30 dB > 0 db. The audio signal
level applied to the oscilloscope appears on the upper left
side of the grid. The default is "0 dB".
• Each long press of [LEVEL] (F7) cycles the signal level in
the reversed sequence.