RadioShack Pro 92 Handheld Trunking Scanner Owners Manual

							51
3. Press FUNC, then press 4. Confirm list
clear?
 1=YES Press other key for NO.
appears on the display. Press 1 to clear all lock-out
frequencies and 
List cleared appears on the
display for about 2 seconds. Press any key other
than 
1, to cancel clear.
PRIORITY
With the priority feature, you can scan through pro-
grammed channels and still not miss an important or in-
teresting call on a specific channel. When a channel is
selected as the priority channel and priority is turned on,
the scanner checks that channel every 2 seconds, and
stays on the channel if there is activity until the activity
stops.
The scanner is preset to select Channel 00 in Bank 8 as
the priority channel. You can program a different channel
as the priority channel. Also, you can program a weather
channel as the priority channel.
Notes: 
• The priority feature does not operate while the scan-
ner receives trunking frequencies.
• If you program a WX channel as the priority channel,
the scanner stays in the priority channel only when
the scanner detects the weather alert tone.
Follow these steps to program a channel as the priority
channel.
1. Press 
MANUAL.
2. Use the number keys to enter the channel number
you want to program as the priority channel. Then
press 
MANUAL again.
3. Press 
FUNC then press PRI.
Pri appears on the dis-
play to the right of the fre-
quency.
20-522.fm  Page 51  Friday, May 19, 2000  4:35 PM 
						

							52
Note: This scanner cannot set a channel as the priority
channel if the channel’s receive mode is 
LTR, MOT, or
ED.
Follow these steps to program a weather channel as the
priority channel.
1. Press 
WX.
2. Select the weather channel you want to program as
the priority channel.
3. Press 
FUNC then press PRI. Pri appears on the dis-
play to the right of the frequency.
To turn on the priority feature, press 
PRI while scanning.
Priority ON (or Priority WX if you set the priority
to a weather channel) appears for about 3 seconds then
P appears. The scanner checks the priority channel every
2 seconds. It stays on the channel if there is activity (or if
it detects a weather alert tone in priority wx mode), 
Pri
appears and S or M changes to P on the display.
Notes: 
• The WX priority is only for receiving a weather alert.
• When the scanner detects a 1050 Hz tone, the WX
priority activates and you receive a weather alert.
To turn off the priority feature, press 
PRI. Priority
OFF
 appears on the display and P disappears from the
display.
Note: The priority channel is always active if it is in the
closed mode, regardless of the open or closed setting for
the bank. This means that if the priority channel is PL,
and has a PL code stored for it, the priority function will
not be active unless the priority signal has the matching
PL code.
20-522.fm  Page 52  Friday, May 19, 2000  4:35 PM 
						

							53
CHANGING THE RECEIVE MODE
The scanner is preset to the most common AM or FM re-
ceive mode for each frequency range. The preset mode
is correct in most cases. However, some amateur radio
transmissions and trunked systems do not operate in the
preset mode. If you try to listen to a transmission when
the scanner is not set to the correct receive mode, the
transmission might sound weak or distorted.
If you want to listen to and watch the private line or trunk-
ing transmission in the closed mode, you need to change
the receive mode. (PL, DPL, MOT, LTR, and ED all use
FM).
You can change a receive mode by pressing 
MODE. The
receive mode changes as follows:
Display Description
AMAM Mode
FMFM Mode
PLFM Mode, Private Line (with 67.0–254.1 Hz PL 
code).
DLFM Mode, Digital Private Line (with 3-digit DPL 
code).
LTFM Mode, LTR Trunking System (with 6-digit ID 
code).
MOFM Mode, Motorola Trunking System (with a 4- or 
5-digit ID code).
EDFM Mode, EDACS Trunking System (with 4-digit 
ID code).
20-522.fm  Page 53  Friday, May 19, 2000  4:35 PM 
						

							54
CHANGING THE FREQUENCY STEP
The scanner searches at a preset frequency step for
each frequency range. Press 
STEP to change the step in-
crement when moving between frequencies of a search
band or follow these steps to change steps in a specific
bank.
1. Press 
SEARCH.
2. Select a bank.
3. Press 
FUNC then STEP. **PAUSED** displays on
Line 3.
4. Press 
STEP continuously until you reach the desired
step.
5. Press 
FUNC then STEP to return to scanning.
These are the changeable frequency steps your scanner
uses for each frequency range.
USING THE ATTENUATOR
To reduce interference or noise caused by strong signals,
you can reduce the scanner’s sensitivity to these signals.
Press 
ATT until A appears on the display to reduce the
scanner’s sensitivity on the current channel.
Range (MHz) Search Step (kHz)
29.000-54.000 5, 10, 15, 20, 25, 30, 50, 100
108.000-136.9875 12.5, 25, 50, 100
137.000-174.000 5, 10, 15, 20, 25, 30, 50, 100
380.000-512.000 12.5, 25, 50, 100
806.000-823.9875 12.5, 25, 50, 100
849.000-868.9875 12.5, 25, 50, 100
894.000-960.000 12.5, 25, 50, 100
20-522.fm  Page 54  Friday, May 19, 2000  4:35 PM 
						

							55
Note: If you turn on this feature, the scanner might not re-
ceive weak signals.
To turn off the attenuator, press 
ATT again. A disappears
from the display.
This setting is stored for each channel.
USING THE DISPLAY BACKLIGHT
You can turn on the display’s backlight for easy viewing in
dimly lit areas. Press 
LIT to turn on the display light for 5
seconds. To turn off the light before it automatically turns
off, press 
LIT again.
TURNING THE KEY TONE ON AND 
OFF
Each time you press any of the scanner’s keys, the scan-
ner sounds a tone. Follow these steps to turn the scan-
ner’s key tone off or on.
1. If the scanner is on, turn 
VOLUME OFF/MAX counter-
clockwise until it clicks to turn it off.
2. Turn 
VOLUME OFF/MAX clockwise to turn it on. Wel-
come
 To Multi-System Trunking appears
on the display.
3. To turn on the key tone, press 1 while the display
shows 
Welcome To Multi-System Trunk-
ing
. To turn off the key tone, press 2 while the dis-
play shows 
Welcome To Multi-System
Trunking
.
USING THE KEYLOCK
Once you program your scanner, you can protect it from
accidental program changes by turning on the keylock
feature. When the keypad is locked, the only controls that
operate are 
FUNC and /LIT.
20-522.fm  Page 55  Friday, May 19, 2000  4:35 PM 
						

							56
Note: You cannot activate the keylock when in the middle
of programming.
To turn on the keylock, press 
FUNC then press  /LIT.
Keyboard Locked appears on the display for about 1
second. 
Keyboard Locked appears when you press
any key after locking the keypad.
To turn off the keylock, press 
FUNC then press  /LIT.
The scanner beeps once and 
Keyboard Unlocked
appears on the display about 1 second.
CHANGING THE DISPLAY 
CONTRAST
1. Press MANUAL.
2. Press 
FUNC then press 9. Use Up/Down keys to
set
 contrast. appears on the display.
3. Press   or   to select the contrast.
4. Press 
ENTER to set the display contrast.
CLONING THE PROGRAMMED 
DATA FROM SCANNER TO 
SCANNER
You can transfer the programmed data to and from an-
other PRO-92 using the supplied clone cable. To clone
the data, follow these steps.
1. Turn on both scanners.
2. Connect the supplied clone cable to each scanner’s
PC/IF jack. CLONE MODE UP to send, remove
cable
 to exit appears.
3. Press . 
Yes=1, No=Other appears.
4. Press 
1 to send the data to the other unit or press
any other key to cancel the operation.
The scanner sends the data. To exit the clone mode, re-
move the cable.
20-522.fm  Page 56  Friday, May 19, 2000  4:35 PM 
						

							57
TRUNKING OPERATION
The PRO-92 scanner tracks transmissions that use the
Motorola® Type I and Type II (such as Smartnet and Pri-
vacy Plus) and hybrid analog trunking systems, plus GE/
Ericsson (EDACS) and EF Johnson (LTR) type systems,
which are extensively used in many communication sys-
tems. 
Trunking systems allocate a few frequencies to many dif-
ferent users. When the mobile unit transmits a signal, one
frequency is chosen from among the allocated frequen-
cies in that trunking system. The user’s 
ID talk group is
sent with the signal.
Trunking group frequencies are included in the supplied
Police Call Trunking Guide. Frequency fleet map and talk
group information is also widely available on the Internet,
including at 
www.trunkscanner.com.
UNDERSTANDING TRUNKING
In the past, groups that transmit frequently, such as po-
lice departments, were restricted to transmitting on just a
few frequencies. This resulted in heavy traffic and often
required 2-way radio users to wait for a specific frequen-
cy to clear before transmitting. 
Trunked systems allow more groups of 2-way radio users
to use fewer frequencies. Instead of selecting a specific
frequency to transmit on, a trunked system chooses one
of several frequencies when the 2-way radio user press-
es PTT (push to talk). The system automatically transmits
the call on that frequency, and also sends a code that
identifies that 2-way radio user’s transmission on a con-
trol channel.
This scanner lets you easily hear both the call and re-
sponse transmissions for that 2-way radio user and there-
fore follow the conversation. For Motorola and LTR
systems, the scanner uses the subaudible data sent with
each transmission to identify talk groups. For EDACS, the
scanner monitors the control channel between each trans-
mission to identify talk groups.
20-522.fm  Page 57  Friday, May 19, 2000  4:35 PM 
						

							58
PROGRAMMING TRUNKING 
FREQUENCIES
Program trunking frequencies just as you program nor-
mal, non-trunked frequencies, but store the appropriate
mode (MO, ED, or LT) with each frequency.
Notes:
• EDACs systems must be stored in banks by them-
selves. You can, however, mix Motorola, or LTR and
conventional channels in a bank.
• During Trunking operation, lock out all data chan-
nels. (See “Locking Out Channels or Frequencies”
on Page 48.)
1. Press 
PGM and select the bank, then press TRUNK to
enter the ID program mode.
2. Press 
MODE to select LT for EF Johnson, MO for
Motorola or 
ED for EDACS (GE/Ericsson) system to
scan. This sets the talk group ID decoding method to
be used for the bank.
Note: If you programmed a Motorola Type I or
Hybrid system, see “Programming Fleet Maps”.
PROGRAMMING FLEET MAPS
If you want to receive a Motorola Type I system, you
need to set the fleet map.
Fleet maps are included along with other information
about Motorola Type I systems on the Internet. To pro-
gram the fleet map:
1. Press 
PGM.
2. Press 
TRUNK.
3. Press 
FUNC,   or  . to select the bank. 
4. Press 
FUNC.
20-522.fm  Page 58  Friday, May 19, 2000  4:35 PM 
						

							59
5. Press 8 and the display below appears.
6. Enter the size code information supplied with the
Type I system information, referring to the instruction
that appears on the display. If the information was
not supplied, try these common fleet maps.
B
L
O
C
KSize Code
123 4 5 6 78
0 S11 S4 S4 S12 S4 S3 S10 S1
1 S11 S4 S4 — S4 S10 S10 S1
2 S11 S4 S4 S4 S12 S4 S11 S2
3 S11 S4 S4 S4 — S4 S4 S2
4 S11 S4 S4 S4 S4 S12 S4 S3
5 S11 S4 S4 S4 S4 — S4 S3
6 S11 S4 S12 S4 S4 S12 S4 S4
7 S11 S4 — S4 S4 — S4 S4
B
L
O
C
KSize Code
91011
12 13 14 15 16
0 S4S0S4S0S3 S4S4S3
1 S4S0S0S0S3 S3S4S10
2 S0S0S0S0S11S10S4S10
3 S0S0S0S0S4 S4S11S11
20-522.fm  Page 59  Friday, May 19, 2000  4:35 PM 
						

							60
7. Enter the size code and press ENTER for each entry.
If you make a mistake, press 
CL and enter the cor-
rect size code.
Note: The default setting of the bank is for Motorola
Type II. However, after you set Type I and if you
want to return to Type II, press 
15 at Step 5.
8. To confirm the input, repeat Steps 1–6 and press
ENTER. Each time you press ENTER, you confirm the
size code. If you find an error, press 
CL and begin
again at Step 1.
TALK GROUP ID’S
You can program up to 100 talk group ID’s in each bank.
When the scanner stops on a transmission in the LTR,
Motorola, or EDACS mode, it checks to see if the ID has
been stored. In the Closed mode, the scanner only stops
on the transmission and displays its text tag if you have
stored and not locked out the ID. In the Open mode, the
scanner always stops on a transmission, but it displays
the ID’s text tag if you have stored the ID.
Storing Talk Group ID’s
To store a talk group ID when scanning, press TRUNK
when the scanner stops on a transmission. The bottom
line changes to 
ID#XXXX indicating that the ID is stored.
4 S0S0S0S0S4 S4S11S0
5 S0S0S0S0S0 S4S0S0
6 S0S4S0S0S0 S12S12S12
7 S0S4S0S4S0 —— — B
L
O
C
KSize Code
91011
12 13 14 15 16
20-522.fm  Page 60  Friday, May 19, 2000  4:35 PM