PRO-27 20-Channel Programmable Scanner
(200-0507) Preparation Faxback Doc. # 31198
Using Vehicle Battery Power
You can power your scanner from your vehicle's battery power using an
optional DC auto adapter (such as Cat. No. 270-1533).
CAUTIONS: This scanner is designed to work in a vehicle that has a 12-volt
DC, negative-ground electrical system. If you are not sure
about your vehicle, check with your vehicle's dealer.
The recommended DC adapter supplies 12 volts and delivers at
least 200 milliamps. Its center tip is set to positive and its
plug properly fits the scanner's POWER and CHARGE jacks. Using
an adapter that does not meet these specifications could damage
the scanner or the adapter.
Be sure you connect the adapter to the scanner before you
connect it to the cigarette-lighter socket. Then disconnect the
adapter from the cigarette-lighter before you disconnect it from
the scanner.
NOTE: The scanner receives a 12-volt input at the CHARGE or POWER jack and
reduces it to the 6 volts required by the scanner.
1. Plug the adapter's barrel plug into your scanner's POWER jack.
NOTE: If you installed rechargeable nickel-cadmium batteries in the
scanner, connect the DC adapter to the CHARGE jack instead of
the POWER jack. This lets you use the DC adapter to power the
scanner and recharge the batteries at the same time.
2. Plug the other end of the adapter into your vehicle's cigarette-
lighter socket.
NOTE: If the scanner does not operate properly with a DC adapter
connected to your vehicle's cigarette-lighter socket, you might
need to unplug the adapter and clean the socket to remove ashes
and other debris or check the fuse inside the DC adapter cord
(if applicable).
RESETTING THE SCANNER
If the scanner's display locks up or does not work properly after you
connect power, you might need to reset the scanner.
CAUTION: Resetting the scanner clears all the information you stored in
the scanner's memory. Before you reset the scanner, try turning
it off and on to see if it begins working properly. Reset the
scanner only when you are sure it is not working properly.
1. If the scanner is on, turn VOLUME/OFF counterclockwise until it clicks
to turn it off.
2. While holding down 2 and 9, turn on the scanner. L appears on the
display.
3. Press MANUAL until a channel number appears on the display.
CONNECTING THE SUPPLIED ANTENNA
Follow these steps to attach the supplied flexible antenna to the antenna
jack on top of the scanner.
1. Slide the antenna's BNC connector slots over the tabs on the scanner's
antenna jack.
2. Press down and rotate the antenna's BNC connector until it locks into
place.
CONNECTING AN OPTIONAL OUTDOOR ANTENNA
The supplied antenna is usually adequate for storing, local signals.
However, for better reception on all bands, you can attach an optional
outdoor antenna, such as an external mobile antenna, telescoping antenna,
multi-band, or outdoor base antenna. If the coaxial cable's connector does
not fit the antenna jack, you might also need an adapter. Your local Radio
Shack store sells a complete line of outdoor antennas, adapters,
connectors, and mounting hardware.
For the best performance, consider the following when deciding on an
outdoor base antenna and its location:
The location of the antenna should be as high as possible.
The antenna and antenna cable should be as far away as possible from
sources of electrical noise (appliances, other radios, and so on).
The antenna should be vertical.
Mount the antenna following the instructions supplied with the antenna and
it's mounting hardware. Then route the antenna cable to the scanner, and
connect it to the antenna jack on top of the scanner.
WARNING: When installing or removing an outdoor antenna, use extreme
caution. If the antenna starts to fall, let it go! It could
contact overhead power lines. If the antenna touches a power
line, contact with the antenna, mast, cable or guy wires can
cause electrocution and death! Call the power company to remove
the antenna. Do not attempt to do so your self.
CAUTION: Do not route the cable over sharp edges or moving objects.
NOTE: Always use 50-ohm coaxial cable to connect an outdoor antenna.
For lengths under 50 feet, use RG58 (Cat. No. 278-1314) or RG8/M
(Cat. No. 278-1313).
For lengths over 50 feet, use RG-8 low-loss coaxial cable
(Cat. No. 278-1312).
CONNECTING AN EARPHONE/HEADPHONES/EXTERNAL SPEAKER
The 1/8-inch jack on top of the scanner lets you connect an earphone,
headphones, or external speaker(s).
For private listening, connect an earphone such as Cat. No. 33-175.
For more comfortable private listening, connect monaural headphones such as
Cat. No. 20-210.
For listening from a remote area or in a noisy area, connect an extension
speaker such as Radio Shack Cat. No. 21-549.
NOTE: Connecting any external device to the HEADPHONES jack automatically
disconnects the internal speaker.
Listening Safely
To protect your hearing, follow these guidelines when you use an ear phone
or headphones.
Do not listen at extremely high volume levels. Extended high-volume
listening can lead to permanent hearing loss.
Set the volume to the lowest setting before you begin listening.
After you begin listening, adjust the volume to a comfortable level.
Once you set the volume, do not increase it. Over time, your ears
adapt to the volume level, so a volume level that does not cause
discomfort might still damage your hearing.
Traffic Safety
Do not wear an earphone/headphones while operating a motor vehicle or
riding a bicycle. This can create a traffic hazard and is illegal in some
areas.
Even though some earphones/headphones are designed to let you hear some
outside sounds when listening at normal volume levels, they still present
a traffic hazard.
ATTACHING THE BELT CLIP
You can connect the supplied belt clip to your scanner for hands-free
carrying when you are on the go. Attach the clip to your scanner with the
two supplied Phillips-head screws.
(SP 3/12/96)
Privacy Policy