To get started connect a receiver and tune to the desired frequency. Connect the line input from your SoundBlaster compatible audio card to the line output of the receiver. Please check audio power levels to prevent damage to your equipement. If the power level is carefully adjusted the headphone output of the receiver may be used. For a start you can use the settings listed below and you can experiment with other settings to find optimal results for your needs.
Signal range is set lower for viewing signals with more or less the same strength.
For more dynamic signals choose a bigger signal range. The gain sets the relation between colours and signal strength. If the screen is black or blue increase the gain and if the screen is to yellow or red you may decrease the gain. Again experimenting is the best way to find the optimal settings four your own spectrograms. For more information please read the help-information available via the help menu in the software.