Connecting The Antenna - Radio Shack PRO-2048 Owner's Manual

20-417.fm Page 9 Wednesday, August 4, 1999 11:33 AM
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
jack. The recommended
DC 12V
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
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
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.
socket
ANT EXT SP DC 12V RESET
The antenna's length controls its
sensitivity. Adjust the length of the
telescoping antenna as follows for
the best reception.
29
DC 12V
108
MHz
406
MHz
54 MHz Extend all 3
–
segments
174 Extend only 2
–
segments
956 Collapse fully
–
(only 1 segment
extended)
9