19-902.fm Page 19 Tuesday, August 3, 1999 2:03 PM

CTCSS OPTION

WHY USE CTCSS?

CTCSS (Continuous Tone-Coded Squelch System) is available as an optional add-on to your transceiver. When CTCSS is turned on, the transceiver transmits a selected tone with your transmission. This tone is too low for you to hear, but other transceivers can de- tect it. If CTCSS is turned on and set to the same tone on the receiving transceiver, it only receives transmis- sions that include the tone. This way, CTCSS can help keep you from hearing other users on the same frequency.

For example, if two different groups operate trans- ceivers in the same area on the same frequency but use a different CTCSS tone, they only hear their own broadcasts.

Note: CTCSS does not make your conversations pri- vate. Other users can still hear your transmissions if they use the same frequency.

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Radio Shack 19-902 owner manual Ctcss Option, Why Use Ctcss?