12 Interphone
The device has an independent interphone function. The
channel, subsonic code, etc. of the interphone are set in the
device; when the device is turned off, voice intercommunica-
tion is still possible.
12.1 Interphone function switch
Turn the interphone switch toward the antenna, and the
interphone will give a prompt tone, indicating that the
interphone has been turned on. At this point, press the PTT
button, and the interphone indicator will be illuminated in
red, indicating that the interphone is transmitting audio. If the
PTT button is not pressed and interphone indicator lights up
in red, it means the interphone has received an audio, and the
speaker will play the received audio. Turning in the reverse
direction will turn off the interphone. The reference preview
screen of the device after the interphone is turned on is as
shown below:
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12.2 Interphone setting
When both the interphone and the recorder are turned on,
users can set the interphone in the interphone setting bar of
the menu. Setting in the interphone setting bar of the menu
is possible only when the interphone is turned on; when the
interphone is turned off, the options in the interphone setting
bar of the menu will become gray and cannot be selected.
12.3 Interphone volume adjustment
After the interphone is turned on, turn it toward the inter-
phone antenna to increase its volume, and in the reverse
direction to reduce its volume. Intercommunicate with a
proper volume for a clearer voice.