Motorola T5500 - Manual (Page 23)

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To transmit to a radio that has QT noise filtering turned on:
1. Select the same channel and Interference Eliminator Code as the other radio.
2. Press
to send a call tone. This allows your voice to pass through the QT
noise filter on the receiving radio.
3. Press and speak normally.
Note: If you skip step 2, the beginning of your message may not be heard on the
receiving radio.
For a 30-second period, starting after the last transmission, all transmis-
sions received on the selected channel and code will pass through the QT
noise filter.
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