RadioShack Pro 2051 Trunk Track Scanner Owners Manual

For a Type I ID, the Block number, Fleet number and Subfleet number make up the 
Talk 
Group ID number. For detail please see page 59. 
1. Enter the ID you want to store by  using the keypad (ID = Block number + Fleet 
number + 
(decimal key) + Subfleet number). 
2. Press  E. 
To enter a Full EDACS ID®: 
1. Enter the Agency number. 
2. Press (decimal key) for the “dash”. 
3. Enter the Fleet number  and Subfleet number. 
4. Press E. 
To enter a Partial EDACS® ID: 
1. Enter the Agency number you want to...

can 
monitor the system in several different ways. You will find that Search, Hold, 
Lockout, Scan 
and Delay are all similar to conventional scanning. 
✎  ID SCAN lets you receive those talkgroups that you store in Scan Lists. \
✎ ID SCAN HOLD lets you selectively listen to a talkgroup in your Scan Lists. 
✎ ID SEARCH lets you hear all system talkgroup activity. This is the best way to 
get 
started. 
✎  ID SEARCH HOLD works with Search mode to let you quickly freeze reception 
on an 
interesting...

Trunking mode and enter into Private Scan Hold mode. 
Note: • appears on the display during Trunk Scan instead of simply . 
ID Scan Hold Feature 
If you want to stop on a ID  during ID scanning, press 
HOLD/RESUME. 
To directly access a specific ID location: 
There are several ways to access a specific ID quickly. 
1. Press HOLD/RESUME  to enter into Hold mode. 
2. Using the keypad,   or   key, enter the ID location number 
(See page 31). 
3. Press  HOLD/RESUME. 
If you want to resume scanning, press...

1. Press and hold SRCH for 2 seconds until you hear two beeps. Then begins 
flashing and all active talk group IDs appear on the display every 0.5 s\
econds. 
2. To activate ID search mode, press  SRCH 
Note: Lockout ID also appears on the display. 
ID Search Hold and Direct Entry ID in Hold Mode 
Just like in Conventional Search, Hold lets you pause ID Search on an interesting 
transmission without storing the talkgroup into memory. 
If you hear an interesting ID during Search mode, 
and want to...

The ID is locked out. You can Lockout up to 100 IDs. The 101st skip freq\
uency 
entered 
causes the first skipped freqnency to unlock. 
Note: If you Lockout an ID in Search mode, it is also locked out in Scan Lis\
t mode. 
Conversely, if you Lockout an ID while in Sc an List mode, it is locked out in Search 
mode. For information about Scan Lists see page 31. 
EDACS BLOCKOUT is a powerful form of ID Lockout that can be used only with 
AFS and 
EDACS systems. This feature lets you lo ckout entire...

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37 
Setting the Delay Mode for Trunking Mode 
A default delay of 2 seconds is automatically set for each talkgroup for ID Scan 
mode and ID 
Search mode. To set the delay feature on or off, press  DELAY while trunking, 
“ DLY ” will 
appear or disappear depending on your setting. 
Trunking Frequency Confirmation 
You can check the frequency while a talkgroup ID is active. 
Press the   key ,and the active frequency on which the talk group is transmitting 
will flash on 
the display. Or press and...

number), then 
press 0-9 (memory position). For exam ple to move to Scan List 4, memory position 
10, 
press:  HOLD/RESUME, 4 , 0, HOLD/RESUME 
Page 37 
38 
Multi-Track 
The 20-426 allows you to track more than one system at a time. Here are \
some 
highlights of 
this feature: 
✎  You can actually track up to 5 trunking systems at one time. 
✎ You can trunk scan, or search and sc an conventional frequencies at the same 
time. 
✎  You can program conventional frequencie s in the same bank as trunking...

bank. 
The scanner will not look for any other IDs within the same trunked system (as this 
would slow the scan process). If you press the  key while you are listening to 
one ID, 
the scanner will check to see if  another ID in your Scan List is active. It will disregard 
the 
ID to which you were just monitoring. 
TRUNK SEARCH : This mode works similarly to  Trunk Scan. If the scanner finds 
any (nonlocked- 
out) ID when it checks the control channel , you will hear it. You will then hear any 
replies...

between 
systems/frequencies as follows: 
TRUNK SCAN: The scanner moves to a trunked system and looks for IDs in your 
Scan 
List(s) for up to 1 second.  If it finds no activity on your programmed talkgroups, it 
moves 
on to conventional channels in the same  bank or to the next active bank. 
If the scanner finds a talkgroup in one of y our active Scan Lists, you will begin to 
hear that 
communication and the scanner will of course  display the proper talkgroup number. 
When 
the communication ends,...

EDACS systems use Transmission Trunking, which means that each 
transmission is 
assigned a new frequency. As the conversation moves through the systems 
frequencies, 
your TrunkTracker III automatically follows it. 
This chart shows a 30 second sample of EDACS transmissions. Eight different 
talkgroups 
are using the system as their transmissions switch between the thirteen system 
frequencies. 
Notice how the dotted line shows talk group 02-023 moving from channel to 
channel. Your 
20-426 can clearly...