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USING DTMF TONES
DTMF (Dual-Tone, Multiple Frequency) is another term for
touch-
tones
(the tones a telephone produces when you press a digit).
This standard set of tones is used by many different amateur
transceiver systems for accessing programmable features and
dialing through autopatches to a standard telephone.
Your transceiver produces all 16 standard DTMF tones (0–9,
*
, #,
A, B, C, and D).
Follow these steps to use the DTMF feature.
1. Set
DTMF
on the bottom of the microphone to
ON.
2. Enter the DTMF sequence using the alphanumeric keys.
3. After you complete your transmission, set
DTMF
to the left
position to turn off the feature.
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