Its value is saved b program, and recalled when the program is restarted. The filters are automatically centered on the strongest signal. GAIN sets the mapping gain between signal magnitude and color. When rerecording after a pause, the file is appended. ESC terminates the program, after resetting the sound card mixer to the state found at program initialization.
Case is immaterial.
The status line reports the percentage of CPU used by the program. For EME operations, a real time clock shows to the operator the two minute periods used for trasmission exchange between east and west stations. Over the spectrum display the same color is used to trace a thin line, to ease the identification of the stations. Any remarks, suggestions, praises, complaints, whatever you may have on this program are welcome. Please feel free to contact the authors at the email addresses below.