60
limits when using maximum CMP values along with maximum
amplifier power output.
• If you were in TX TEST mode, return to normal operation by
holding [TEST].
• If you had PWR set to 0, set it for the desired level. Key the rig again
and verify that you have about the right power output level.
Voice Mode VOX Setup
In speech and audio data modes, the [VOX] switch enables or disables
voice-activated (or audio-activated) transmit. VOX sensitivity and anti-
vox controls can be accessed by tapping <TX>, then <VOX GAIN>
and <ANTIVOX>.
To set up VOX:
• VOX gain should be set to trigger at normal speech levels, but not in
response to incidental noise. Start with low settings (5-10).
• ANTIVOX sets VOX immunity to receiver audio coming from the
speaker(s). With the mic closer to the speaker than normal, increase
ANTIVOX until the K4 doesn’t switch to TX mode when listening to a
strong signal.
• Adjust the VOX delay using {XMTR} <DLY>. A longer value will keep
the K4 in transmit mode for a longer period of time, allowing for
pauses in speech.
Transmit Noise Gate
The noise gate function mutes mic audio below a selected threshold;
this may be useful in noisy environments. See MENU:TX Noise Gate
Threshold.
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