© FlexRadio Systems 2006
Step 7: Calibrate the Microphone Input Level
Refer to the image below for a reference to the front panel for this calibration. Select Mic on the TX Meter
(upper right). Click the MOX button to begin transmitting. Speak in a normal voice and adjust the Mic control
(left, middle) until the voice peaks are right at 0dB on the multimeter (figure below). If you are unable to
modulate to the 0dB point, it may be necessary to use a hardware preamp to bring the input levels up for the
Delta 44.
This concludes the Delta 44 Quick Start Guide. At this point you should be able to receive and transmit with
the Delta 44. If you are still having problems, please refer to the support links mentioned at the top of this
guide.
Updated 05/24/06
PowerSDR - Mic Setup
