System information

From the receiver front panel, press and hold the Enter button, and then press Radio menu button to select the audio
from the unaffected channel. To indicate that the channel has been selected, the color of the FD-Bodypack mode icon
will invert.
To return to Frequency Diversity mode, press and hold the Enter button, and then press the Radio menu button for the
selected channel.
For optimal performance, the audio levels between 2 AXT100 bodypack transmitters must be set within 1 dB when used
for Frequency Diversity. The AXT400 receiver has a bodypack calibration mode that graphically compares the audio levels
between the bodypacks, allowing for precise calibration.
If the bodypacks are enabled with ShowLink remote control, real-time adjustments can be made from the calibration
screen. Otherwise, make adjustments using the bodypack controls.
Note: An uninterrupted audio source (voice, instrument, or tone generator) is necessary for calibration. The arrow indicator appears on the display
when a sufficient level of audio signal is present.
If a problem develops with one channel such as a lavalier microphone moving out of position and creating unwanted
noise, there is an option to disable Frequency Diversity and select the audio from the unaffected channel.
1. When the calibration screen appears, use the menu buttons to select Tx1 or
Tx2. An arrow will appear on the screen to indicate the relative audio level
difference between the two transmitters.
2. Use the control wheel to adjust the gain of the selected transmitter to move
the arrow indicator towards the 0 dB level. Gain information for the transmitter
appears below the gain scale.
3. When the gain adjustment has moved the arrow within 1 dB, the screen
message will indicate Levels Calibrated.
4. Press the Exit button to end the calibration function.
To access the calibration function from the receiver menu: Radio > Options > Diversity > Calibrate
Bodypack Frequency Diversity Calibration
Selecting Audio from a Single Bodypack Channel
Tip: Use the Pre-Tonekey Squelch monitoring option to determine which channel has good audio.
Frequency Diversity and Interference Detection and Avoidance
You can combine Frequency Diversity and Interference Detection and Avoidance together for further mitigation of
interference. As described in the prior chapter, turn on and adjust the Interference Detection and Avoidance mode and
sensitivity before configuring the receiver for Frequency Diversity operation.
96
Part 3: System Operation
Channel Name:
Tx1
Tx2
+10 +5 0dB +5 +10
From
Tx1
From
Tx2
Relative Audio Levels
Adjust Gain for Vocal 1 +15
Channel Name:
Tx1
Tx2
+10 +5 0dB +5 +10
From
Tx1
From
Tx2
Levels Calibrated