Icom IC-746PRO Manual page 154

• By monitoring a signal that is being operated
with a repeater, tone squelch or DTCS, you
can determine the tone frequency necessary to
open a repeater or the squelch.
• When matched tone or code is found, the scan
pauses and the tone frequency or code is set
for the selected tone as in step
– When the tone scan or DTCS code scan is
operated in memory or call channel, the
detected tone frequency or code can be used
for temporarily.
• To keep the detected tone frequency or code
setting for memory contents, you must over-
written the memory or call channel.
Decode Scan