Uniden UBCD996T - Manual (Page 116)

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After you select an alert pattern, the scanner prompts for the alert level for a
received alert. Level options 1 to 15 sets a fixed audio level independent of the main
volume setting. uses the main volume setting for the alerts.
The scanner can check multiple tone combination pages for channels whose
settings are the same. To achieve this, set the channel to the same frequency,
modulation, and attenuation. For example, the scanner checks tone combinations
for channel 1 to channel 3 for the following settings.
Although set to Auto, if the band default is anything other than FM or NFM,
modulation will always be FM.
If you switch to Tone-Out Standby Mode for Multi-Channel Monitoring, the display
switches every 2 seconds to show the frequency it is checking. However, it is, at the
same time, checking all frequencies for Tones. If one is detected, it switches to
Tone-Out Hold mode.
AUTO
Tone-Out Multi-Channel Monitoring