PRO-74 100-Channel VHF/UHF/Air/800 MHz Race Scanner
(200-0513) Understanding Your Scanner Faxback Doc. # 47322
Once you understand a few simple terms we use in this manual and
familiarize yourself with your scanner's features, you can put the scanner
to work for you. You simply find the communications you want to receive,
then set the scanner to scan them.
A frequency is the tuning location of a station (expressed in kHz or MHz).
To find active frequencies, you can use the search function.
You can also search the memory banks, which are preset groups of
frequencies categorized by type of service.
When you find a frequency, you can store it into a programmable memory
location called a channel, which is grouped with your other channels in a
memory bank. You can then scan the memory banks to see if there is
activity on the frequencies stored there. Each time the scanner finds an
active frequency, it stays on that channel until the transmission ends.
Remember, you search frequencies and scan channels.
A LOOK AT THE KEYPAD
Your scanner's keys might seem confusing at first, but this information
should help you understand each key's function.
RACE - lets you store car numbers and frequencies in the scanner's
channels, add and delete frequencies from car numbers,
display car numbers, and listen to the channel where a car
number is stored.
MAN - stops scanning and lets you directly enter a channel number
or frequency.
PROG - stores frequencies into channels.
BAND - lets you search service banks.
SCAN - scans through stored channels.
HOLD - holds a frequency search.
DATA - turns on or off the date signal skip feature, and lets you
sequentially recall channels where car numbers and
frequencies are stored during manual operation.
PRIORITY/H/S - sets and turns on and off priority for a particular channel
Also turns Hypersearch on and off.
L-OUT/S/S - lets you lock out a selected channel and skips a specified
frequency during a service bank, direct, or weather search.
(\/) and (/\)- enters the search direction (down or up).
DEL - deletes the frequencies and car numbers stored in the
memory.
KEYLOCK/ - locks the keypad to prevent accidental program changes.
(symbol) Also turns on the display light for 15 seconds.
Number Keys - each key is marked with a single digit, and has a range of
numbers printed above it. The single digits are used to
enter a channel or frequency. The range of numbers (31-40,
for example) indicates the channels that make up a memory
bank.
CLEAR/(*) - erases an incorrect entry or an error, and enters a decimal
point.
WX/E - selects a weather channel and enters the frequency when you
store a frequency into a channel.
A LOOK AT THE DISPLAY
The display has indicators that show the scanner's current operating
status. A good look at the display will help you understand how your
scanner operates.
BANK - appears with numbers (1-10) to show which memory banks are
turned on for scanning.
Service bank - appears when you select the scanner's service banks (see
indicators "Service Banks" below).
BATT.Lo - flashes when the batteries are low.
K/L - appears when you lock the keypad.
RACE - appears when you store car numbers and frequencies in the
scanner's channels, add and delete frequencies from car
numbers, display car numbers, and move to the channel where
a car number is stored.
PRI - appears when you set the scanner to scan the priority
channels every 2 seconds.
DATA - appears when you turn on the data skip function.
HOLD - appears during a search hold.
WX - appears when you search the preset frequencies in the
weather band.
HYPER - appears when you are using Hypersearch during service bank
and direct search. However, HYPER disappears when the
scanner searches any frequency bands other than the 5 kHz
step bands.
No. - appears when a car number is displayed.
MRN - appears with CH when you select the scanner's marine
service blank (see "Service Banks" below).
P - appears when you listen to a priority channel.
CH - digits that precede this indicator show which of the 100
channels the scanner is tuned to.
MHz - digits that precede this indicator show which frequency the
scanner is tuned to. 5 appears directly above the MHz
indicator when the displayed frequency is an odd multiple
of 12.5 kHz (for frequencies between 406 - 956 MHz, or
108 - 136.975 MHz).
SCAN - appears when you scan channels.
MAN - appears when you manually select a channel.
PGM - appears when you store (program) frequencies into the
scanner's channels.
L/O - appears when you manually select a locked channel or a skip
frequency.
S - appears when the battery save function is active.
(\/) or (/\) - indicates the search direction.
SEARCH - appears during a service bank, direct, or weather search.
-d- - appears during a direct SEARCH.
Error - appears when you make an invalid entry.
UNDERSTANDING BANKS
Memory Banks
To make it easier to identify and select the channels you want to listen
to, the PRO-74's channels are divided into 10 banks of 10 channels each.
Use each memory bank to group frequencies, such as the police department,
fire department, ambulance services, or aircraft (see "Guide to the Action
Bands" in Faxback Doc. # 17653). For example, the police department might
use four frequencies, one for each side of town. You could program the
police frequencies starting with Channel 1 (the first channel in bank 1)
and program the fire department frequencies starting with Channel 11 (the
first channel in bank 2).
Service Banks
You can search for auto racing, marine, VHF, aircraft, military, amateur
radio, government, UHF, TV, and 800 MHz transmissions even if you do not
know the specific frequencies that are used in your area. And, you can
store any of the frequencies you find into channels.
This table shows each service bank's name, what it is used for, and its
frequencies.
Name Typical Usage Frequency Range (in MHz)
CAr Auto Racing 150.9950 - 151.9550
152.8700 - 153.7250
154.4900 - 154.6250
460.0000 - 470.0000
MRN CH Marine Listed in "VHF FM Marine
Frequencies" in Faxback
Doc. # 17653.
Lo VHF Lo 29.000 - 54.0000
AIr Air 108.0000 - 136.9750
MIL Military 137.0000 - 144.0000
HAM 2-Meter Ham 144.0000 - 148.0000
HI VHF Hi 148.0000 - 174.0000
FEd Federal Government 406.0000 - 420.0000
HAM 70-Centimeter Ham 420.0000 - 450.0000
UHF UHF 450.0000 - 470.0000
TV TV 470.0000 - 512.0000
800 800 MHz 806.0000 - 823.9375
851.0000 - 868.9375
896.1125 - 956.0000
Your scanner also has 7 preprogrammed weather frequencies.
For example, if you wanted to search for transmissions between a driver
and that driver's pit crew at an auto race, you could search only the
service bank where you are most likely to hear the transmissions (CAr).
Notes: The frequencies in the scanner's service banks are preset. You
cannot change them.
"Band Allocation" in Faxback Doc. # 17653 lists frequency ranges
and the broadcasters you are likely to hear on those frequencies.
(BR/eb 4/24/98)
Privacy Policy