If power is continuously supplied to the scanner for at least 24 hours, the memory backup circuit maintains the channels stored in memory for up to 5 days. If power is disconnected and the memory backup circuit becomes too weak to save the scanner’s program- ming, MEMO LOSS appears again when power is reconnected until you reprogram the scanner.
CONNECTING AN EXTERNAL SPEAKER OR HEADPHONES
In a noisy area, an extension speaker or pair of monaural headphones (Cat. No.
Plug the speaker cable’s or head- phones’
(add corrected illus F13. Add external speaker and callout EXT SP and arrow to jack)
Caution: Do not turn the scanner’s volume all the way up while using headphones. The headphones could be damaged.
Note: Plugging in an external speaker or headphones disconnects the scan- ner’s internal speaker.
Listening Safely
To protect your hearing, follow these guidelines when you use headphones.
•Do not listen at extremely high volume levels. Extended
•Set the volume to the lowest set- ting before you begin listening. After you begin listening, adjust the volume to a comfortable level.
•Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing.
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