COMMON TASKS
Yaesu FT-8900R Operating Manual Expanded Edition (courtesy of W5JCK) Page 21 of 77
To activate the Audio Mute feature:
1. Press the SET key momentarily to enter the Set mode.
2. Rotate the DIAL knob to select Menu #24 MUTE.
3. Press the DIAL knob momentarily, then rotate the DIAL knob to choose the
desired selection.
TX: Reduces the audio level of the Receive Only band whenever you transmit
on the Main band
RX: Reduces the audio level of the Receive Only band whenever you receive a
signal on the Main band
TX/RX: Reduces the audio level of the Receive Only band whenever you
receive a signal on the Main band or you transmit on the Main band
OFF: Disables the Audio Mute feature
4. Press and hold in the DIAL knob for ½ second to save the new setting and exit to
normal operation.0.
Set the RF Squelch Level
A special RF Squelch feature is provided on this radio. This feature allows you to set the
squelch so that only signals exceeding a certain S-meter level will open the squelch.
When setting up the RF Squelch circuit for operation, note that you may set the RF Squelch
independently for the left and right sides, using the following procedure:
1. Press the SET key momentarily to enter the Set mode.
2. Rotate the DIAL knob to select Menu #32 RF SQL.
3. Press the DIAL knob momentarily, then rotate the DIAL knob to select the
desired signal strength level for the squelch threshold (OFF, S-2, S-5, S-9, or S-FULL).
4. Press and hold in the DIAL knob for ½ second to save the new setting and exit to
normal operation.
5. Finally, rotate the SQL knob fully clockwise. 0.
Activate the Time-Out Timer
The Time-Out Timer (TOT) feature is designed to force the transceiver into the Receive mode
after a preset time period of continuous transmission (the default is 6 minutes). This feature
prevents your transceiver from transmitting a dead carrier for a long period of time in the
event that the microphone PTT switch is accidentally locked in the TX position.
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