Radio Shack Pro 2055 User manual

Please read this user’s guide before installing,
setting up and using your new product
www.radioshack.com
20-428
PRO-2055 1,000 Channel
Triple Trunking
Mobile/Base Scanner
NOTE: Actual product may vary from the images found
in this document.

2
Contents
user’s guide • quick start guide • preloaded data addendum
Thank you for purchasing your PRO-2055 triple trunking
scanner from RadioShack. You can mount your scanner
in a fixed position and use it as a base scanner or you can
use it as a mobile scanner by mounting it in a vehicle. No
additional hardware or add-on cards are needed. This
scanner is one of a new generation of scanners designed
to track Motorola® Type I and II (such as Smartnet®
and Privacy Plus®) and hybrid analog trunking systems,
GE-Ericsson (EDACS®) type systems, and EF Johnson
(LTR) type systems which are extensively used in many
communication systems.
AC adapter
DC cable w/fuse
DIN sleeve and keys (2)
Scanner Antenna
Mounting
bracket
Knob (2)
Rubber washer (2)
Lock washer (2)
Screw (2)
Rubber foot (3)

3
The Basics
contents
your scanner’s keypad 7
your scanner’s rear view 9
your scanner’s display 10
step 1: install your scanner 11
mounting your scanner in your dashboard 11
mobile mounting in your vehicle 12
using your scanner as a base station 13
step 2: power your scanner 14
from a wall outlet 14
through your vehicle’s ignition 15
from your vehicle’s cigarrette lighter 16
step 3: connect your scanner 17
connect the supplied antenna 17
connect an external antenna 17
connect an external speaker or headphones 18
quick start 20
understanding your scanner’s modes 20
setting up your scanner 29
turning on the scanner and setting squelch 29

4
The Basics
storing known frequencies into channels 30
CTCSS and DCS 32
storing trunking frequencies into channels 35
storing text tags 36
finding and storing active
frequencies 40
searching a preprogrammed frequency
range 40
band charts 42
searching active frequencies in a range 47
manually tuning a frequency 49
listening to the weather band 50
skywarn 52
using frequency copy 53
Signal Stalker II 55
scanning the channels 57
using CTCSS and DCS 59
deleting frequencies from channels 59
deleting all frequencies in a channel bank 60
using delay 60
locking out channels or frequencies 61
priority 63
changing the receive mode 65
using the attenuator 66
turning the key tone on and off 67
using the dimmer 67
changing the display contrast 67
cloning the programmed data 68

5
The Basics
trunking 69
how trunking works 69
setting squelch for trunking mode 71
programming trunking frequencies 71
care 85
replacing fuse 85
resetting/initializing your scanner 85
service and repair 86
birdie frequencies 86
specifications 88
The FCC wants you to know 91
scanning legally 91
glossary 93
FAQs (Frequenctly Asked Questions) 95
warranty 96

6
The Basics
©2005 RadioShack Corporation.
All Rights Reserved.
RadioShack, RadioShack.com. Hypersearch, Hyperscan, and Adaptaplug are
trademarks used by RadioShack Corporation.
Motorola, Smartnet, ASTRO and Privacy Plus are registered trademarks of
Motorla Inc.
EDACS is a registered trademark of MA-COM Inc.
LTR is a registered trademark of EF Johnson.

7
The Basics
your scanner’s keypad
TRUNK — stores the trunking ID code or holds
the trunking ID while scanning.
L/OUT — locks out selected channels and ID
codes, and skips specified frequencies during
a search.
CLEAR — clears an incorrect entry.
PROG — programs frequencies in selected
channels.
PWR/VOL/SQ — long knob turns OFF/ON, and
controls volume. Short knob controls squelch.
PC/IF — connect data cable for cloning or
connecting to a PC.
s— attach headphones with 1/8” jack here.

8
The Basics
ATT — Press to
activate attenuation (reduce
scanner sensitivity, block
strong signals). Press again to
deactivate attenuation.
PAUSE — pauses search
or tune operation.
DIM — adjusts the
backlight level (Light, Dark,
or OFF).
TUNE — Press TUNE,
PAUSE then eor dto tune
to a frequency.
FUNC — press in
combination with other keys
to perform various functions.
WX/— scans through
the seven preprogrammed
weather channels, or jumps
to a Skywarn channel you
programmed (997-999).
PRI — turns the
priority function on or off.
TEXT — press to input text. MODE — press to
change the receive mode.
SRCH — press to search
through search banks.
SCAN/— scans
through the programmed
channels, or activates the
Signal Stalker II function.
MAN — press to manually
enter a channel number.
eor d— press to
scan or search in either
direction.

9
The Basics
EXT SP — connect an
external speaker here.
ENT — press to
confirm frequency
and text entries.
your scanner’s rear view
ANT — connect the
supplied antenna or an
external antenna here. DC 13.8V — connect a
power source here.
SCREW HOLE — use to mount
the scanner in a car with some
hardware (screw not supplied).
RESET—
press to
reset your
scanner.
Press to enter a number or a
character (in text mode).
./DELAY — press to enter a
decimal point, space, or hyphen.
Press to program delay time for a
channel/search bank.

10
The Basics
your scanner’s display