Setting Frequency Options
Before you can use your transceiver, an | About CTCSS |
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authorized service facility must set your | CTCSS | helps eliminate | interference | |||
transceiver to a VHF business band fre- | ||||||
between | different users | of the same | ||||
quency you have a license to use. Then, | ||||||
frequency, letting you talk and listen to | ||||||
you can select a preset CTCSS (Contin- | ||||||
uous Tone Control Squelch System) fre- | people who are using other transceiv- | |||||
quency and set your transceiver to use | ers set to the same frequency and | |||||
it. | CTCSS code. This is like having a sub- | |||||
Here is what you need to do to set your | channel within a channel, giving you | |||||
greater communication flexibility. When | ||||||
transceiver to use a business band fre- | you set a CTCSS code — there are 38 | |||||
quency and CTCSS. | ||||||
to choose from — and turn on your | ||||||
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þ Send your transceiver to an authorized | transceiver’s CTCSS, the transceiver | |||||
service facility to have it set to a busi- | transmits a tone with your transmis- | |||||
ness band frequency. | sion, letting you communicate with | |||||
À Set the DIP switches for a CTCSS fre- | anyone who has a transceiver set to | |||||
the same frequency and code. This | ||||||
quency (see “Using a CTCSS Frequen- | ||||||
cy” on Page 14). | tone is too low for you to hear, but oth- | |||||
à Set your transceiver to that CTCSS | er transceivers can detect it. |
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frequency. |
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Õ Set a DIP switch to activate or deacti- | If CTCSS is turned on and set to the | |||||
vate CTCSS. | ||||||
same tone on the receiving transceiv- | ||||||
You can select one CTCSS frequency at | ||||||
er, it only receives those transmissions | ||||||
a time. If you do not want to use a CTC- | ||||||
that include the | tone. If | two | different | |||
SS frequency, skip Steps 2_4 above. | ||||||
groups | transceivers | in the | ||||
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same area on the same frequency, they do not hear each other’s broad- casts if they both use CTCSS and each select a different CTCSS tone. Your transceiver’s default CTCSS tone is 100 Hz.
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