Yaesu VX-8GR Operating Manual page 35

RX-INVERT, TX-INVERT:
Receive and transmit the Inverted DCS Tone.
RX-BOTH, TX-INVERT:
Receive both Normal and Inverted DCS Tones and transmit the Inverted DCS
Tone.
5. When you have made your selection, press the PTT switch, to save the new settings
and exit to normal operation.
This is different from the usual method of restoring normal operation, and it applies only
to the configuration of the CTCSS/DCS frequencies. Remember to restore the default
setting "RX-NORMAL, TX-NORMAL" (Receive and transmit the Normal DCS Tone) when
done.
VX-8GR O
CTCSS/DCS/EPCS O
DCS O
M 33