Elaym (Repeater Sound Response); Bclo (Busy Channel Lock-Out) - Baofeng UV-3R Mark II Reference

2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the SCANM: TO/C0.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.

ELAYM (Repeater Sound Response)

The UV-3R comes with the Repeater Sound Response feature.
When the feature is activated, the handheld transceiver will hear
the sound from the repeater that means the transceiver is
working via the repeater. Please see below to activate the
features:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [17], RELAYM.
2) Press the [ U/V ] key to enter the set mode.
3) Clockwise or counterclockwise rotation of [ DIAL ] knob to
select the RELAYM: ON/OFF.
4) Press the [ U/V ] key to save the setting.
5) Press [ MENU/LOCK ] or [ PTT ] to EXIT to normal
operation.

BCLO (Busy Channel Lock-out)

The BCLO feature prevents the radio's transmitter from being
activated if a signal strong enough to break through the 'noise'
squelch is present. On a frequency where stations using different
CTCSS or DCS codes may be active, BCLO prevents you from
disrupting their communications (because your radio may be
muted by its own Tone Decoder). The default setting for the
BCLO is OFF. The below instruction is the procedure to
activate the BCLO:
1) Press [ MENU/LOCK ] then rotate the [ DIAL ] knob to
MENU [18], BCLO.
2) Press the [ U/V ] key to enter the set mode.
Baofeng UV-3R Mark II Reference 11