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When Transmit Inhibit feature is enabled, the radio
stops all transmission including voice and data. The
radio could receive messages but not replying the
acknowledgement request of the received message.
User could physically control the transmission of the
radio especially during operation in hazardous
environments with this feature. An environment is
considered hazardous when the power emitted by the
radio power amplifier could initiate an explosion or
other dangerous reactions.
When the Transmit Inhibit feature is disabled, the
radio functions according to its normal operations.
The radio sounds alert tone when user enters or exits
this feature and also when
PTT
is pressed.
Note:
Acknowledgement of any messages required
from the radio is not transmitted if the Transmit
Inhibition is enabled.
Enabling Transmit Inhibition
Press the Transmit Inhibit programmable button.
Note:
If the user has disabled TX Inhibit via the
menu and then moves the switch to the
position where TX Inhibit is enabled, the
new value overwrites the menu value.
The display shows
Tx inhibit on
. You hear a
sequence of short, low
‐
high tones to indicate
transmission is inhibited.
Pressing
PTT
triggers the radio sounds a constant
short, low
‐
pitched tone (reject tone).
Note:
The status of the Transmit Inhibit does not
change after the radio powers up.
Disabling Transmit Inhibition
Press the Transmit Inhibit programmable button.
Note:
If the user has disabled TX Inhibit via the
softkey and then moves the switch to the
position where TX Inhibit is enabled, the
new value overwrites the menu value.
The display shows
Tx inhibit off
. You hear a
sequence of short, high
‐
low tone (Transmit Inhibit
Off tone) to indicate transmission is back to normal
operation.
Advanced Features
68
English
Summary of Contents for ASTRO APX 1000 Series
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