Business Band Mobile Transceiver w/CTCSS/VHF-FM
(190-1210) Frequency Options Faxback Doc. # 56027
Setting Frequency Options
Before you can use your transceiver, you must set it to one or two VHF
business band frequencies you have a license to use. Then, you can select
a preset CTCSS (Continuous Tone Control Squelch System) frequency and set
your transceiver to use it.
The transceiver's preset frequencies are:
151.625 MHz (red dot)
151.700 MHz
151.760 MHz
151.820 MHz
151.880 MHz
151.940 MHz
151.955 MHz (purple dot)
154.570 MHz (blue dot) (preset as Channel 2)
154.600 MHz (green dot) (preset as Channel 1)
Note: Some manufacturers identify some business band frequencies by
color. These "dot" frequencies are shown above.
Setting Business Band Frequencies
Follow these steps to program your transceiver with one or two business
band frequencies.
Notes: You can set both of the transceiver's channels to the same
business band frequency.
You must send the transceiver to an authorized service center in
order to have it programmed to use an extended business band
frequency.
1. Turn VOLUME fully counterclockwise to make sure the transceiver is
turned off.
2. Set CTCSS on the front of the transceiver to OFF.
3. Use a Phillips screwdriver to open the cover on the bottom of the
transceiver.
4. Use a pointed object such as a straightened paper clip to set the
position of each DIP switch on the bottom of the transceiver to 1
(up), 0 (down), 1 (up), 0 (down), 1 (up), and 0 (down).
5. Hold down the button on the microphone then turn VOLUME clockwise
until it clicks. If the transceiver beeps once, continue setting the
transceiver. Otherwise, start over at Step 1.
6. Set CHANNEL on the front of the transceiver to 1.
7. Choose a business band frequency from the table below.
Frequency Switch Frequency Switch Frequency Switch
(MHz) Setting (MHz) Setting (MHz) Setting
151.625 XX0000 151.700 XX0100 151.760 XX0101
(Red)
151.820 XX0110 151.880 XX0111 151.940 XX1000
151.955 XX0001 154.570 XX0010 154.600 XX0011
8. Set the position of each DIP switch on the bottom of the transceiver
to 1 (up) or 0 (down) corresponding to the setting shown in the table
for that business band frequency.
DIP Switch Setting Key:
0 = Down 1 = Up X = Do not change (frequency or CTCSS option)
9. Hold down the button on the microphone. The transceiver sets the
business band frequency into the channel you selected in Step 6 based
on the DIP switch setting. Then release the button on the microphone.
If the transceiver beeps once, the transceiver successfully set the
business band frequency you selected. Otherwise, if the transceiver
beeps 3 times and TX lights red for about 2 seconds, start over at
Step 1.
10. Turn VOLUME fully counterclockwise, set CHANNEL to 2, then repeat
Steps 4-9 to set Channel 2 to a business band frequency.
11. Set the position of each DIP switch on the bottom of the transceiver
to 000000.
12. Close the cover on the bottom of the transceiver.
Selecting a Business Band Frequency
To set your transceiver to use one of its programmed business band
frequencies, set CTCSS to OFF then set CHANNEL to 1 or 2.
Using a CTCSS Frequency
CTCSS helps eliminate interference between different users of the same
frequency, letting you talk and listen to people who are using other
transceivers set to the same frequency and CTCSS code. This is like
having a sub-channel within a channel, giving you greater communication
flexibility.
When you set a CTCSS code - there are 38 to choose from - and turn on your
transceiver's CTCSS, the transceiver transmits a tone with your
transmission, letting you communicate with anyone who has a transceiver
set to the same frequency and code. This tone is too low for you to hear,
but other transceivers can detect it.
If CTCSS is turned on and set to the same tone on the receiving
transceiver, your transceiver only receives those transmissions that
include the tone. If two different groups operate transceivers in the
same area on the same frequency, they do not hear each other's broadcasts
if they both use CTCSS and each select a different CTCSS tone. Your
transceiver's default CTCSS tone is 100 Hz.
Follow these steps to set your transceiver to a CTCSS frequency then
activate or deactivate CTCSS.
1. Turn VOLUME fully counterclockwise to make sure the transceiver is
turned off.
2. Set CTCSS on the front of the transceiver to OFF.
3. Use a Phillips screwdriver to open the cover on the bottom of the
transceiver.
4. Write down each DIP switch's current setting.
5. Choose a CTCSS code from "DIP Switch Settings," below. Then use a
pointed object such as a straightened paper clip to set the position
of each DIP switch on the bottom of the radio to 1 (up) or 0 (down)
corresponding to the setting for that CTCSS code.
6. Hold down the button on the microphone then turn VOLUME clockwise
until it clicks. The transceiver sets the CTCSS code based on the DIP
switch setting. Then release the button on the microphone.
If the transceiver beeps once and RX lights green for about 2 seconds,
the transceiver successfully set the CTCSS code you selected.
Otherwise, if the transceiver beeps 3 times and TX lights red for
about 2 seconds, start over at Step 1.
7. Set the DIP switches back to the settings you wrote down in Step 4.
8. Close the cover on the bottom of the transceiver.
Set CTCSS to ON to activate the CTCSS code you set or to OFF to deactivate
it.
Note: If you set the CTCSS code to 000000, CTCSS does not work even if
you set CTCSS on the front of the transceiver to ON.
DIP Switch Settings
DIP Switch Setting Key: 0 = down, 1 = up
CTCSS DIP Switch CTCSS DIP Switch
Code Freq (Hz) Setting Code Freq (Hz) Setting
None 000000 20 131.8 010100
1 67.0 000001 21 136.5 010101
2 71.9 000010 22 141.3 010110
3 74.4 000011 23 146.2 010111
4 77.0 000100 24 151.4 011000
5 79.7 000101 25 156.7 011001
6 82.5 000110 26 162.2 011010
7 85.4 000111 27 169.9 011011
8 88.5 001000 28 173.8 011100
9 91.5 001001 29 179.9 011101
10 94.8 001010 30 186.2 011110
11 97.4 001011 31 192.8 011111
12 100.0 001100 32 203.5 100000
13 103.5 001101 33 210.7 100001
14 107.2 001110 34 218.1 100010
15 110.9 001111 35 225.7 100011
16 114.8 010000 36 233.6 100100
17 118.8 010010 37 241.8 100101
18 123.0 010010 38 250.3 100110
19 127.3 010011
(EB 7/21/99)
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