Hytera PD412i, Owner'S Manual

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11
Operation
●
Press the programmed Squelch Off key to enable the feature (a
high-pitched tone sounds) and sounds background noise. Press this
key again to disable the feature (a low-pitched tone sounds).
●
Press the programmed Squelch Off Momentary key to enable the
feature (a high-pitched tone sounds) and sounds background noise.
Press this key again to disable the feature (a low-pitched tone
sounds).
TDMA Direct Mode
Description
TDMA Direct Mode allows the radio to divide the 12.5 kHz channel into
two alternative slots in direct mode. If the radio operates on a channel
with this feature enabled and one time slot is already occupied, it can
transmit and receive in the other free time slot.
Operation
Enable or disable this feature via CPS by your dealer. With this feature
enabled, you can manually switch to a digital channel in TDMA Direct
Mode or enter the TDMA Direct Mode by powering on the radio on a
digital channel in TDMA Direct Mode.
VOX
Description
VOX allows you to trigger the voice transmission by speaking directly
Features and Operations
without holding down the PTT key. When the voice detected by the
microphone (either external or internal microphone) reaches the volume
to trigger the transmission, it will be transmitted automatically.
Follow the instructions below when using the VOX
feature:
●
To use the VOX feature with an external microphone,
make sure the PTT/VOX switch is switched to “VOX”
before the radio is powered on and the VOX feature is
enabled.
●
The VOX feature will be enabled for all the channels.
●
The VOX feature settings will not remain unchanged when
the radio is powered on and off.
●
After the VOX feature is enabled, switching the PTT/
VOX switch to “PTT” will disable the feature. In such case,
switching the PTT/VOX switch to “VOX” will keep the radio
transmitting. To make the radio function properly, reattach the
earpiece to enable the feature again.
Operation
Switch the PTT/VOX switch to
“
VOX
”
and attach the earpiece to the
radio. Press the programmed VOX key to enable this feature. The VOX
gain level can be programmed via CPS by your dealer.
Caution