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RadioShack Pro 2041 Vhf Uhf Scanner Reciever Maintenance Manual
RadioShack Pro 2041 Vhf Uhf Scanner Reciever Maintenance Manual
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159...495-161.565 TRAN 161.580-162.000 OIL, MARI, RTV 162.0125-162.35 GOVT, MIL, USXX 162.400-162.550 WTHR 162.5625-162.6375 GOVT, MIL, USXX 162.6625 MED 162.6875-163.225 GOVT, MIL, USXX 163.250-166.225 MED, GOVT, MIL, USXX 166.250 GOVT, RTV, FIRE 166.275-169.400 GOVT, BIFC 169.445-169.505 Wireless Mikes, GOVT 169.55-169.9875 GOVT, MIL, USXX 170.000-170.150 BIFC, GOVT, RTV, FIRE 170.175-170.225 GOVT 170.245-170.305 Wireless Mike 170.350-170.400 GOVT, MIL 170.425-170.450 BIFC 170.475 PUB 170.4875-173.175 GOVT, PUB, Wireless Mikes 173.225-173.5375 MOV, NEWS, UTIL, MIL 173.5625-173.5875 MIL Medical/Crash Crews 173.60-173.9875 GOVT ULTRA HIGH FREQUENCY (UHF) U.S. Government Band 406.125-419.975 GOVT. USXX 70-cm Amateur Band 420.000-150.000 HAM Low Band 450.050-450.925 RTV 451.025-452.025 IND, OIL, TELM, UTIL
452.0375-453.00 IND, TAXI, TRAN TOW, NEWS 453.0125-454.000 PUB, OIL 454.025-454.975 TELB 455.050-455.925 RTV 457.525-457.600 BUS 458.025-458.175 MED 460.0125-160.6375 FIRE, POL, PUB 460.650-462.175 BUS 462.1875-462.450 BUS, IND 462.4625-462.525 IND, OIL, TELM, UTIL 462.550-462.925 GMR, BUS 462.9375-463.1875 MED 463.200-467.925 BUS FM-TV Audio Broadcast, UHF Wide Band (Channels 14 through 69 MHz steps) 475.750 Channel 14 481.750 Channel 15 487.750 Channel 16 511.750 Channel 20 NOTE: Some cities use the 470-512 MHz band for land/mobile service. Conventional Systems Band - Locally Assigned 851.0125-855.9875 CSB Conventional/Trunked Systems Band - Locally Assigned 856.0125-860.9875 CTSB Trunked Systems Band - Locally Assigned 861.0125-865.9875 TSB Public Safety Band - Locally Assigned 866.0125-865.9875 PSB 33-Centimeter Amateur Band 902.0000-928.0000 HAM
Private Trunked 935.0125-939.9875 PTR General Trunked 940.0125-940.9875 GTR FREQUENCY CONVERSION The tuning location of a station can be expressed in frequency (kHz or MHz) or in wavelength (meters). The following information can help you make the necessary conversions. 1 MHz (million) = 1,000 kHz (thousand) To convert MHz to kHz, multiple the number of megahertz by 1,000: 30.62 (MHz) x 1000 = 30,620 kHz To convert from kHz to MHz, divide the number if kilohertz by 1,000: 127,800 (kHz) + 1000 = 127.8 MHz To convert MHz to meters, divide 300 by the number of megahertz: 300 + 50 MHz = 6 meters (LB/km-04/11/1997)
PRO-2041 Scanner
(200-0463) Operation Faxback Doc. # 38898
TURNING ON THE SCANNER/SETTING VOLUME AND SQUELCH
NOTE: Make sure the scanners antenna is connected before you turn
it on.
1. Turn SQUELCH fully counterclockwise.
2. Turn OFF/VOLUME clockwise until it clicks and you hear a hissing
sound.
3. Turn SQUELCH clockwise, then leave it set to a point just after the
hissing sound stops.
If the scanner automatically starts scanning channels, press MANUAL
to stop scanning.
NOTE: If you have not stored frequencies into any channels (see
Storing Active Frequencies), the scanner does not scan.
If the scanner picks up unwanted, partial, or very weak
transmissions, turn SQUELCH clockwise to decrease the scanners
sensitivity to these signals. If you want to listen to a weak
or distant station, turn SQUELCH counterclockwise. (Also see
Special Features, Faxback Doc. # 38899 for more information
about adjusting the scanners sensitivity).
If SQUELCH is adjusted so you always hear a hissing sound, the
scanner does not scan properly.
STORING ACTIVE FREQUENCIES
You can store frequencies into channels using any of these methods:
Manual storage
Auto storage
Band, limit, or direct search
Good references for active frequencies are Radio Shacks Police Call
Radio Guide Including Fire and Emergency Services, Aeronautical
Frequency Directory, and Maritime Frequency Directory. We update
these directories every year, so be sure to get a current copy. See
also General Guide to Scanning, Faxback Doc. # 38900.
If you do not have a reference to frequencies in your area, follow the
steps in Automatically Storing Frequencies, Band Search, Limit
Search,
or Direct Search from the Displayed Frequency to search for
transmissions.
Manually Storing Frequencies
If you know a frequency you want to store, you can store it manually.
1. Press PROGRAM. PROGRAM appears.
2. Use the number keys to enter the channel number where you want to
store the frequency, then press PROGRAM again.
3. Use the number keys to enter the frequency you want to store into
that channel (including the decimal point).
4. Press ENTER to store the frequency.
NOTES: If you entered an invalid frequency in Step 3, the scanner
beeps and displays the channel number and Error. Simply
repeat Steps 3 and 4.
Your scanner automatically rounds the entered frequency down
to the closest valid frequency. For example, if you try to
enter 151.4730, your scanner accepts it as 151.4700.
If you entered a frequency that is already stored in another
channel, the scanner beeps three times and displays the lowest
channel number where the lowest channel number where the
frequency is already stored, and -DUPL- then the frequency
flashes at the channel where you tried to store it. If you
want to store the frequency anyway, press ENTER again.
If you find that you entered a wrong frequency after you press
ENTER, you can change it to the correct frequency by following
these steps.
a. Press ENTER. One of the frequencys digits flashes.
b. Repeatedly press UP ARROW and DOWN ARROW until the digit
you want to change flashes.
C. Use the number keys to enter the correct digit.
d. Press ENTER.
5. Repeat Steps 2-4 to store more frequencies into channels.
Automatically Storing Frequencies
Your scanner can automatically store active frequencies from a particular
frequency range into empty channels in the channel-storage banks you
specify.
NOTES: The scanner does not store duplicate frequencies during auto
store.
The scanner does not store locked-out frequencies during auto
store (see Special Features, Faxback Doc. # 38899).
1. Press AUTO BANK and all channel-storage bank numbers appear, and the
bar under the currently selected bank number flashes. AUTO and
AC-XXCH also appear, where XX is the number of empty channels in the
active bank.
To view the number of empty channels in other banks, repeatedly press
AUTO.
2. Press the number key for each bank where you do not want to store
frequencies. The bar under each bank number you select disappears.
NOTES: To turn off bank 10, press 0.
To turn a bank back on, press its number key again. The bar
under the bank number appears.
If you select a bank that does not contain any empty channels,
A-FULL appears instead of AC-XXCH. To enter new frequencies
into this bank, you must delete one or more frequencies
stored in it. See Deleting Frequencies.
3. Press LIMIT. L and the lower limit frequency (29.0000) appear.
29.0000 is the default.
4. Use the number keys to enter the lower limit of the frequency range
where you want to find frequencies to store, then press ENTER.
5. Press LIMIT. H and the upper limit frequency (960.0000) appears.
960.0000 is the default.
6. Use the number keys to enter the upper limit of the frequency range
where you want to find frequencies to store, then press ENTER.
NOTE: If you enter an invalid frequency in Step 4 or 6, the scanner
displays Error. Simply repeat the step.
7. Press UP ARROW to go from the lower to the upper limit, or DOWN ARROW
to go from the upper to the lower limit. AUTO and the bar under the
currently selected bank number flash.
When the scanner finds an active frequency, it stores the frequency in
the channel number displayed to the left of CH, then continues
searching for more active frequencies and storing them in any sub-
sequent empty channels. When the scanner fills all channels within
the selected banks, it beeps rapidly and displays the last frequency
stored and the number of the channel where it was stored.
NOTES: During auto store, you can manually change the receiver mode.
To pause auto store, press AUTO. The scanner displays the
last channel number where a frequency was stored, or - - - - -
if no frequencies are stored. To continue auto store, press
UP ARROW or DOWN ARROW.
During auto store, the scanner beeps when it reaches the upper
limit frequency, then continues searching from the lower
limit frequency, or vice versa.
8. To stop auto store, press MANUAL. MANUAL appears.
Band Search
If you do not know of a frequency to store, you can search your scanners
preprogrammed search bands for active frequencies, then store any that
you find into your scanners channels or monitor memories.
NOTES: You can use the scanners delay feature while using band search.
During band search, you can manually change the receive mode.
Follow these steps to search for and store active frequencies using band
search.
1. Press BAND. The last selected band number (b followed by a number,
such as b02), SEARCH, and the frequency search range appear.
2. To select a different band, enter the bands number (01-17), or
repeatedly press BAND until the desired band number appears.
3. To step through the band upward or downward in small increments (in
steps of 5, 12.5, or 25 kHz depending on the band), repeatedly press
UP ARROW or DOWN ARROW.
Or, hold down UP ARROW for about 1 second to search up from the
bottom of the band, or DOWN ARROW for about 1 second to search
from the top of the band. UP ARROW or DOWN ARROW appears.
When the scanner finds an active frequency, it stops searching and
displays the frequencys number.
NOTES: To reverse the rapid search direction at any time, hold down
UP ARROW or DOWN ARROW for about 1 second.
To store the displayed frequency in the lowest available channel,
press ENTER. The channel and frequency flash twice, and the
scanner stores the displayed frequency. Then the scanner
continues to search for frequencies.
If there is no empty channel, CH-FULL appears. To store more
frequencies, you must clear some channels. To continue searching
after CH-FULL appears, press CLEAR then UP ARROW or DOWN ARROW.
To store the displayed frequency in the lowest available monitor
memory, press MONITOR. The frequency flashes twice, and MON,
the monitor memory number, and CH flash. To search for another
active frequency in the selected band, hold down UP ARROW or
DOWN ARROW for about 1 second.
If you try to store a frequency in a monitor memory that is
already stored in a channel, -dUPL- flashes then the channel
number and CH, MON, and the frequency flash. If you want to store
the frequency anyway, press MONITOR.
4. To select a different band and search for another active frequency,
repeat Steps 2-3.
Limit Search
You can search for transmissions within a range of frequencies you select,
or you can use one of the scanners 10 preprogrammed limit search ranges.
NOTES: You can use the scanners delay feature while using limit search.
During a limit search, you can manually change the receive mode.
The scanner contains there preprogrammed limit search ranges, stored in
search banks, 1-10.
Search Limit Search Range (MHz) Description
Bank
1 29.0000-54.0000 10-Meter Amateur Radio,
VHF Lo, 6-Meter Amateur
Radio
2 108.0000-136.9750 Aircraft
3 137.0000-174.0000 Government, 2-Meter
Amateur Radio, VHF Hi
4 380.0000-512.0000 Military Aircraft, UHF
Lo, 70-Centimeter
Amateur Radio, UHF T
Band, Government
5 806.0000-815.2875 UHF Public Service
6 815.3000-820.7375 UHF Public Service
7 820.7500-824.0000 UHF Public Service
8 849.0000-869.0000 UHF Hi
9 894.0000-960.0000 UHF-Hi, 33-Centimeter
Amateur Radio
10 29.0000-960.0000 All Frequencies
Follow these steps to select the preprogrammed limit search ranges and
search them for active frequencies.
1. Press LIMIT. L and the last selected search bank number appear, and
the bar under the selected bank number flashes.
2. Using the number keys, enter the search bank number for each limit
search range you want to remove or select. When a bank is selected,
a bar appears under it.
NOTE: To select bank 10, press 0.
3. To step through the selected band upward or downward in small
increments (in steps of 5, 12.5 or 25 kHz depending on the band),
press and release UP ARROW or DOWN ARROW.
On hold down UP ARROW for about 1 second to search from the lower to
the upper limit, or DOWN ARROW to search from the upper to the lower
limit. As the scanner searches, it displays SEARCH, and the bar under
the current search bank number flashes.
When the scanner finds an active frequency, it stops searching.
NOTES: To reverse the rapid search direction at any time, hold down
UP ARROW or DOWN ARROW for about 1 second.
To store the displayed frequency in the lowest available
channel, simply press ENTER. The scanner stores the frequency
and continues to search.
If there is no empty channel, CH-FULL appears. To store more
frequencies, you must clear some channels.
If you entered a frequency that is already stored in another
channel, the scanner beeps three times and displays the
lowest channel number where the frequency is already stored,
and -dUPL- then the frequency flashes at the channel where you
tried to store it. If you want to store the frequency anyway,
press ENTER again.
To store the current frequency in a monitor memory, simply press MONITOR.
To search for another active frequency, hold down UP ARROW or DOWN ARROW
for about 1 second.
Changing a Preprogrammed Range
You can replace any of the preprogrammed limit search ranges with your
own frequency ranges. This is useful if there is a range of frequencies
you search often that is not within any of the preprogrammed ranges.
NOTES: You cannot set a frequency limit outside the scanners range
of 29.0000 MHz to 960.0000 MHz.
You can restore the preprogrammed limit search limit search
ranges you replaced by initializing the scanner.
1. Press PROGRAM. PROGRAM appears.
2. Using the number keys, select the number for the search bank where
you want to store a new limit search range.
NOTE: To select bank 10, press 10.
3. Press LIMIT. SEARCH BANK, the selected bank number, and L appear,
and a bar flashes under the selected search banks number.
4. Use the number keys to enter the lower limit of the frequency range
you want to search, then press ENTER.
5. Press LIMIT. L changes to H.
6. Use the number keys to enter the higher limit of the frequency range
you want to search, then press ENTER.
NOTE: If you enter an invalid frequency in Step 4 or 6, the scanner
displays Error. Simply enter another frequency.
7. To store more limit search ranges, repeat Steps 2-6.
8. Follow Steps 1-3 in Limit Search to search the range(s)
you just set.
Direct Search from the Displayed Frequency
You can search up or down from the currently displayed frequency and store
frequencies into channels or monitor memories.
NOTES: You can use the scanners delay feature while using direct search.
Direct direct search, you can manually change the receive mode.
1. When you see the frequency where you want to start the search, press
DIRECT/..SEARCH, -d-, and the starting frequency appear.
2. To step through the selected band upward or downward in small
increments (in steps of 5, 12.5 or 25 kHz depending on the band),
press and release UP ARROW or DOWN ARROW.
Or, hold down UP ARROW or DOWN ARROW for about 1 second to search
up or down from the selected frequency.
When the scanner finds an active frequency, it stops searching.
NOTE: To reverse the search direction at any time, hold down UP ARROW
or DOWN ARROW for about 1 second.
To store the current frequency in the lowest available channel,
simply the frequency, then continues to search.
NOTES: If the displayed frequency is already stored in another channel,
the scanner beeps three times and displays the lowest channel
number where the frequency is already stored, and -dUPL- then the
frequency flashes. If you want to store the frequency anyway,
press ENTER again.
If there is no empty channel, CH-FULL appears. To store more
frequencies, you must clear some channels.
To store a displayed frequency in a monitor memory, simply press
MONITOR. To search for another active frequency, hold down UP
ARROW or DOWN ARROW for about 1 second.
Direct Search from a Frequency You Select
You can search all frequencies within a range of 1 to 10 MHz, starting
from a frequency you select.
1. Press MANUAL or PROGRAM.
2. Use the number keys to enter the frequency you want to start the
search from. Or, use the number keys to enter the channel number
containing the starting frequency, then press MANUAL or PROGRAM again.
3. Press DIRECT/.. SEARCH, -d-, and the starting frequency appear.
4. Using the number keys, enter the frequency range you want to search.
For example, if you want to search a 2 MHz range of frequencies
starting from the selected frequency, press 2.
NOTE: To select 10 MHz, press 0.
5. Follow Step 2 in Direct Search from the Displayed Frequency to search
the range and store any frequencies you find.
NOTE: Page 4 has a list of all frequency in Step 2 that is at the
edge of a range of frequencies that the scanner cannot tune,
and try to search in that range, the scanner beeps and does not
search.