User's Manual

Connecting an External Speaker
In a noisy area, an amplified speaker (not supplied) might provide more comfortable listening. Plug the
speaker cable's 1/8-inch (3.5 mm) mini-plug into your scanner's HEADPHONE jack.
NOTE: You must use an amplified speaker with this scanner. Non-amplified speakers do not provide
sufficient volume for comfortable listening.
Using the Belt Clip
You can use the belt clip attached to the back of the scanner for hands-free carrying when you are on the
go. The PSR-310 ships with the belt clip already installed. To remove the belt clip, use your finger to
disengage the retaining catch at the top of the belt clip from the back of radio, and slide the belt clip
upwards. To install the belt clip, slide it down into the belt clip receptacle on the rear of the radio. Press
down on the belt clip until it locks in place. Slide the belt clip over your belt, pocket or waistband.
NOTE: You can order a replacement belt clip from GRE America (http://www.geramerica.com if the one
that came with your radio becomes lost or damaged.
Using AC Power
You can power the scanner using a supplied AC adaptor.
WARNING: You must use the supplied AC adaptor.
. Always connect the AC adaptor to the scanner before you connect it to AC power. When you finish,
disconnect the adaptor from AC power before you disconnect it from the scanner.
. The correct orientation for the enclosed power adaptor is in a vertical or floor-mount position.
To power the scanner using an AC adaptor, connect the plug into the scanner's PWR DC 9V jack. Then
connect the AC adaptor to a standard AC outlet.
WARNING: To prevent electric shock, do not use the AC adaptor's polarized plug with an extension cord,
receptacle, or other outlet unless you can fully insert the blades to prevent blade exposure.
Using Vehicle Battery Power
You can power the scanner from a vehicle's 12V power source (such as cigarette-lighter socket) using a
9VDC at least 500-mA adaptor with 4.75mm outer/1.7mm inner plug. Its center tip must be set to positive
and its plug must fit the scanner's PWR DC 9V jack. Using an adaptor that does not meet these