Icom IC -2410A Instruction Manual page 40

The HM-56 HAND MICROPHONE is equipped with 14
DTMF memory channels and a re-dialing function for
auto dialing. Up to a 22-digit telephone number, etc.,
can be memorized into each DTMF memory channel.
NOTE: Set [LOCK] on the microphone to the OFF
position to use the HM-56 functions.
The HM-56 has 4 different mode types as follows:
@ NORMAL mode
A DTMF code is transmitted when a digit key is
pushed.
@ MEMORY WRITE mode
Used when writing DTMF codes into a DTMF
memory channel in the HM-56.
e The active indicator blinks fast.
@ MEMORY READ mode
Used when reading DTMF codes from a DIMF
memory channel in the HM-56.
e The active indicator lights continuously.
(à) RE-DIAL mode
Used when recalling the last-transmitted DTMF
codes.
e The active indicator blinks slowly.
ll Writing a DTMF code
1)
2)
Push [MW] on the microphone to select the
MEMORY WRITE mode.
e The active indicator blinks fast.
While pushing and holding the PTT switch, push
the desired DTMF memory channel number [1]~[0]
or [A]—-[D] on the microphone. Do not release
the PTT switch until step 4.
e The active indicator goes out.
@ Push the desired
DTMF memory.
channel number.
(D Push and hold
the PTT switch.
3) While pushing the PTT switch, push the desired
4)
9)
6)
keys.
e Up to 22 digits can be memorized.
Release the PTT switch.
e The active indicator blinks fast.
To write other memory channels, repeat steps 2-— 4.
Push [MW] on the microphone to return to NORMAL
mode.
e The active indicator goes out.