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mast, connection of coaxial cable to a lightning arrestor, size of grounding
conductors, location of the lightning arrestor and connection of grounding
conductors to grounding electrodes. Additionally, you may wish to discon-
nect your radio from the outdoor antenna during electrical storm activity to
prevent damage. The diagram below provides an example of a proper an-
tenna grounding system.
Connecting an Earphone/Headphones
For private listening, you can plug an 1/8-inch (3.5 mm) mini-plug earphone
or headphones (not supplied) in the jack on top of your scanner. This au-
tomatically disconnects the internal speaker.
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 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 re-
ceptacle 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.
Caution:
• You must use the supplied AC adaptor.
• The correct orientation for the enclosed power adaptor is in a vertical or
floor-mount position.
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