Uniden Bc72xlt Vhf Uhf Scanner Owners Manual

							21
Setting Up Your Scanner
Cautions:
• Use only fresh batteries of the required size and 
recommended type.
• Always remove old or weak batteries. Batteries 
can leak chemicals that destroy electronic 
circuits.
• Do not mix old and new batteries, different types 
of batteries (standard, alkaline, or rechargeable), 
or rechargeable batteries of different capacities.
5. Replace the cover. 
6. When   flashes and the scanner beeps 
every 15 seconds, replace both batteries.
Using Rechargeable Batteries
You can also use two rechargeable batteries to 
power your scanner. Before you use Ni-MH or Ni-Cd 
batteries, you must charge them.
The scanner has a built-in circuit that lets you 
recharge Ni-MH or Ni-Cd batteries while they are in 
the scanner. To charge the batteries, set 
REG. ALK. BATT./NI-MH BATT. inside the battery 
compartment to NI-MH BATT., install the batteries in 
the scanner, and connect an external AC adapter to 
the scanners DC 6V jack (see “Using AC Power” on 
Page 23).
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Setting Up Your Scanner    WARNING!
 
Do not connect either adapter to the scanner if non-
rechargeable batteries (such as alkaline batteries) are 
installed in the scanner and REG. ALK. BATT./NI-MH 
BATT. is set to NI-MH BATT., or if you are unsure of 
the switch’s position. Non-rechargeable batteries will 
get hot and can even burst if you try to recharge them.
Before you use Ni-MH or Ni-Cd batteries for the first time, 
charge them for 14 hours to bring them to a full charge.
Discharged batteries take about 14 hours to fully 
recharge.
Notes:
• The scanner might test rechargeable batteries 
when you install them. TSt CHArg and   
appear. If the batteries are good, TSt 
disappears and the scanner charges the 
batteries. Otherwise, no bAtt appears and the 
scanner does not charge the batteries.
• Ni-MH batteries last longer and deliver more 
power if you occasionally let them fully 
discharge. To do this, simply use the scanner 
until it beeps every 15 seconds and   
flashes.
• To prevent damage to Ni-MH batteries, never 
charge them in an area where the temperature is 
above 113°F (45°C) or below 40°F (4°C).
• If you connect an external power source to the 
scanner with REG. ALK. BATT./NI-MH BATT. 
set to REG. ALK. BATT., CHArg and   
appear but the scanner does NOT charge the 
batteries. Make sure that you use the correct 
batteries and set REG. ALK. BATT./
NI-MH BATT. to the correct position when you 
connect an external power source.
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Setting Up Your Scanner
• For longer operation, you can also use high-
capacity Ni-MH batteries to power the scanner. 
This type of battery takes longer to recharge. 
You can get high-capacity Ni-MH batteries at 
your local electronics store.
Using AC Power
You can power the scanner using the supplied 6V, 
500 mA AC adapter.
To use the scanner on AC power, plug the AC adapter 
into DC 6V on the side of the scanner then plug the 
other end into a standard AC outlet.
If rechargeable batteries are installed and 
REG. ALK. BATT./NI-MH BATT. is set to NI-MH BATT., 
the adapter powers the scanner and recharges the 
installed batteries at the same time.
Connecting the Antenna
To attach the supplied flexible antenna to the 
connector on the top of your scanner, align the slots 
around the antennas connector with the tabs on the 
scanners BNC connector. Then slide the antennas 
connector down over the scanners connector and 
rotate the antenna connectors outer ring clockwise 
until it locks into place.
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							24
Setting Up Your Scanner
Connecting an Optional Antenna
The scanners BNC connector makes it easy to 
connect a variety of optional antennas, including an 
external mobile antenna or outdoor base station 
antenna.
Note: Always use 50-ohm, RG-58, or RG-8, coaxial 
cable to connect an outdoor antenna. If the antenna 
is over 50 feet from the scanner, use RG-8 low-loss 
dielectric coaxial cable. You can get a BNC adapter 
at your local electronics store.
Connecting an Earphone/Headphone
For private listening, you can plug a 1/8-inch (3.5 
mm) mini-plug earphone or mono headphones (not 
supplied) into the headphone jack on top of your 
scanner. This automatically disconnects the internal 
speaker.
Connecting an Extension Speaker
In a noisy area, an optional extension speaker, 
positioned in the right place, might provide more 
comfortable listening. Plug the speaker cables 
1/8-
inch (3.5-mm) mini-plug into your scanners jack.
   WARNING! 
If you connect an external speaker to the scanners 
headphone jack, never connect the audio output line 
to a power supply and ground. This might damage 
the scanner.
BC72XLT
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							25
Setting Up Your Scanner
Attaching the Belt Clip
To make your scanner easier to carry when you are 
on the go, use the supplied belt clip. Use a Phillips 
screwdriver and the supplied screws to attach the 
clip to the scanner.
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							26
About Your Scanner
About Your ScannerWe use a few simple terms in this manual to explain 
the features of the scanner. Familiarize yourself with 
these terms and the scanners features, and you can 
put the scanner to work for you right away. Simply 
determine the type of communications you want to 
receive, then set the scanner to scan those 
communications.
A frequency, expressed in kHz or MHz, is the tuning 
location of a station. To find active frequencies, you 
use the search function or refer to a frequency 
reference.
Besides searching within a selected frequency 
range, you can also search your scanners service 
banks. Service banks are preset groups of 
frequencies categorized by the type of services that 
use those frequencies. For example, many amateur 
radio frequencies are located in the HAM service 
bank.
When you search and find a desired frequency, you 
can store it into a programmable memory location 
called a channel. Channels are grouped into 
channel-storage banks. The scanner has 10 
channel-storage banks and each bank has 10 
channels. You can scan the channel-storage banks 
to see if there is activity on the frequencies stored 
there.
About Your Scanner
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							27
About Your Scanner
A Look At The Keypad
Your scanners keys have various functions labeled 
on the key tops and below the keys. 
To select the function labeled on a key, simply press 
the key. To select the function labeled below a key, 
first press Func then release it.   appears on the 
display. Then press the next key in the function key 
sequence while   appears.   appears or 
disappears as you press Func.
If your scanners keys seem confusing at first, the 
following information should help you understand 
each keys function.
Key Name Description
Hold/Hold – Holds the scan or the 
frequency search. Press and 
hold Hold to increment 
channels continuously.
Func +   
– Switches between 
the three Close Call modes.
F
FF
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							28
About Your Scanner
Scan/Src Scan – Scans the stored 
channels.
Func + Src 
– Starts chain 
search or resumes searching.
/ 
– Turns the display 
backlight on or off.
Func +   
– Locks and 
unlocks the keypad.
FuncLets you use various functions 
by pressing this key in 
combination with other keys.
Press and hold for more than 
2 seconds to turn the scanner 
on or off.
1/Pri 1 
– Enters a 1.
Func + Pri 
– Sets and turns the 
priority function on or off.
2/2 
– Enters a 2.
Func +   
– Selects the scan or 
search direction.
3/Svc 3 
– Enters a 3.
Func + Svc 
– Sets and turns 
the service search function on.
44 
– Enters a 4.
Key Name Description
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About Your Scanner
5/Dly 5 – Enters a 5.
Func + Dly 
– Sets and turns the 
delay function on or off.
6/PSrc 6 
– Enters a 6.
Func + PSrc 
– Sets and turns 
program band select mode on 
or off.
77 
– Enters a 7.
8/8 
– Enters an 8.
Func +   
– Selects the scan or 
search direction.
9Enters a 9.
/ClrEnters a decimal point.
0/L/O 0 
– Enters a 0.
Func + L/O 
– Lets you lock out 
a selected channel or skip a 
specified frequency.
E/Pgm E 
– Enters frequencies into 
channels.
Func + Pgm 
– lets you program 
the frequency.
Key Name Description
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							30
About Your Scanner
A Look At The Display
The display has indicators that show the scanners 
current operating status. The display information 
helps you understand how your scanner operates.
BANK - appears with numbers (1-10).
 - appears when you lock the keypad.
 - appears only when the function mode is on.
 - appears while you store a frequency into a 
channel.
SRCH - appears during search mode.
 or   - appears during search mode.
 - appears while rechargeable batteries are 
charging and alerts you when the battery power 
gets low.
 - appears when the scanner is set to a Close Call 
mode.
P - appears when you select a priority channel.
F
PGM
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