Radio Shack PRO-2048 - Manual (Page 9)

9
Cautions:
• The DC cigarette-lighter power
cable must be capable of deliv-
ering 12 volts and 500 milli-
amps, its center tip must be set
to positive, and its barrel plug
must correctly fit the scanner's
DC 12V jack. The recommended
power cable meets these speci-
fications. Using a power cable
that does not meet these specifi-
cations could damage the scan-
ner or the power cable.
• Always plug the power cable
into the scanner before you plug
it into your vehicle's cigarette-
lighter socket. Always unplug
the power cable from the vehi-
cle's cigarette-lighter socket
before you unplug it from the
scanner.
Follow these steps to use vehicle
battery power.
1. Insert the power cable’s barrel
plug into the scanner’s DC 12V
jack.
2. Plug the other end of the power
cable into the vehicle’s cigarette-
lighter socket.
Note: If the scanner does not oper-
ate properly when you use a ciga-
rette-lighter power cable, unplug the
power cable from the cigarette-
lighter socket and clean the socket to
remove ashes and other debris.
CONNECTING THE
ANTENNA
To attach the supplied telescoping
antenna to your scanner, simply
screw it into the hole on top of your
scanner.
The antenna’s length controls its
sensitivity. Adjust the length of the
telescoping antenna as follows for
the best reception.
RESET DC 12V ANT EXT SP
29 – 54 MHz Extend all 3
segments
108 – 174
MHz
Extend only 2
segments
406 – 956
MHz
Collapse fully
(only 1 segment
extended)
20-417.fm Page 9 Wednesday, August 4, 1999 11:33 AM