Yaesu FT-712RH Operating Manual page 11

To install the transceiver, position the transceiver in the bracket so that the clip
on the left side fits into the slot in the left side of the bracket e 31, then push
the right side of the transceiver upwards until it latches.
To remove the transceiver place your hand underneath it and pull the latch on
the right side of the bracket outward until the right side of the transceiver drops
free.
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