RadioShack Pro 2051 Trunk Track Scanner Owners Manual

transmissions than others. It might not correctly 
display frequency information for transmitters 
using a highly directive antenna (such as an 
amateur radio beam antenna), if there are many 
transmitters operating at the same time in the 
same area, or if the transmitter is a broadcast 
television station. 
 
Setting the Signal Stalker Options 
    Press FUNC then press and hold for 2 
seconds. One of the following signal stalker 
options appears. 
S-S.bnd: Lets you select the signal stalker band....

    Press E while S-S.Alt appears. One of the 
following alert options appears. 
ALt bEEP: The scanner beeps when a signal 
stalker signal is detected. 
ALt Light: The scanner flashes the display 
backlight when a signal stalker signal is detected. 
ALt bP-Lt: The scanner flashes the display 
backlight and beeps when a signal stalker signal 
is detected. 
ALt OFF: The scanner does not provide any alert 
when a signal stalker signal is detected. 
    Repeatedly press or until the option you 
want appears,...

disappears. 
 
 
SKYWARN 
Skywarn 
The Skywarn function lets you jump directly to the 
last channel in memory (Channel 200) from any 
mode by pressing FUNC + . The scanner goes 
into scan hold mode and starts receiving 
transmissions in the last channel. If no frequency is 
programmed in the last channel, No Prg appears 
and the scanner sounds an error tone. 
About Skywarn 
Skywarn is an organized group of trained weather 
observers. A Skywarn group exists in virtually every 
US county with a significant...

Listen to NOAA: for weather alerts and warnings, 
watch box notices, and weather forecasts 
Listen to Skywarn: to hear trained observers in your 
vicinity call in official reports to a net control 
station who relays those reports to NOAA and other 
emergency agencies. 
If you tune to a Skywarn frequency when the 
Skywarn net is not active, you may hear nothing or 
you may hear amateur radio operators talking on a 
local repeater system. 
Most importantly, you get Skywarn reports directly 
from trained...

error while receiving data, End, d-Err, and its 
frame number appear. If the scanner received a 
communication error while receiving data, C-Err 
indicates the packet number where the error 
occurred. If the scanner received a checksum 
error while receiving data, S-Err indicates the 
packet number where the error occurred. If the 
scanner received a length field error while 
receiving data, L-Err indicates the packet number 
where the error occurred. 
 
 
150 CH PREPROGRAMMED FREQUENCY 
 
Follow these...

The FCC Wants You to KnowThis equipment has been tested and found to comply with the limits for a 
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits 
are designed to provide reasonable protection against harmful interference 
in a residential installation. This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed and used in accordance 
with the instructions, may cause harmful interference to radio 
communications. 
However, there is no...