ClearOne XAP TH1 - Manual (Page 16)

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INSTALL ATION & OPERATION • CALIBRATION
Auto-Adapt
If DIP switch 1 is OFF (DOWN), call someone and continue to talk while
the system adapts over time. Once complete, the XAP TH1 will be fully
calibrated and ready for use.
Conclude your conversation and press the OFF button [6]. (If the auto-
disconnect feature is active, and the distant location hangs up, the XAP
TH1 will disconnect upon sensing loop drop or call-progress tones,
depending on the position of DIP switch 6.)
Transmit Level Adjustment
Someone in the local room should speak into the microphone at a
normal distance, in a normal voice. The party at the distant location
should not speak during the transmit adjustment. Adjust the XAP 800
output that is connected to the XAP TH1 TRANSMIT input to nominal 0
reaching peaks of +4dB to +8dB. The XAP TH1 TRANSMIT LED [1]
should be solid green while the person is speaking and extinguish when
the person stops. Refer to your XAP 800 manual for more information.
Receive Level Adjustment
Someone in the distant location should speak into the microphone at a
normal distance, in a normal voice; the local room should maintain
silence. Adjust the XAP 800 input that is connected to the XAP TH1
RECEIVE output to to nominal 0 reaching peaks of +4dB to +8dB. The
XAP TH1 RECEIVE LED [2] should be solid green while the person is
speaking and extinguish when the person stops.
Calibration is now complete.
XAP TH1 transmit and
receive audio level
adjustments are made via
the XAP 800. Nominal transmit and
receive level for the XAP TH1 is
0dB.
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