User Manual

PSR-410 O/Manual
Note: When your radio is connected
to your vehicle’s DC power system, you may hear noise from your
vehicle’s electrical system in the radio’s speaker. Consult with a local electronics supply store to obtain a
filter that will reduce or eliminate this noise.
Connecting an earphone or headphones
For private listening, you can plug an 1/8” (3.5mm) mini-plug earphone or headphones (not supplied), into
the headphone jack on the from panel. This automatically disconnects the internal speaker.
Connecting an Extension Speaker
In a noisy areas, or you install the scanner into your dashboard, extension speaker (not supplied) might
provide more comfortable listening. Plug the speaker cable’s 1/8 inch (3.5mm) mini-plug into your
scanner’s EXT-SP jack, located on the rear panel of the radio.
Listening Safely
To protect your hearing, follow these guidelines when you use headphones.
Do not connect headphones to the external speaker jack located on the rear panel of the radio.
Set the volume to zero before putting on headphones. With the headphones on, adjust the volume to a
comfortable level.
Avoid increasing the volume once you set it. Over time, your sensitivity to a volume level decreases, so
volume levels that do not cause discomfort might damage your hearing.
Avoid or limit listening at high volume levels. Prolonged exposure to high volume levels can cause
permanent hearing loss.
Traffic Safety
Wearing headphones while operating a motor vehicle or riding a bicycle can create a traffic hazard and is
illegal in most areas.
Even though some headphones let you hear some outside sounds when listening at normal volume levels,
they still can present a traffic hazard. Exercise extreme caution!
Connecting an Optional External Antenna
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