Display
Here you can change the look of MRP40 main window
Put MRP40 Window always On Top
Ensures that no other windows will hide the MRP40 window
Restore Default
Just reset the MRP40 Window size to 640x480 Pixel and place it at the upper left corner of screen
Window Size
Select a convenient window size
Spectrograph
The Spectrograph permanently prints graphically the intensity of the incoming Audio Signals. The Spectrum is analyzed with a Fast Fourier Transformation (FFT) calculated over a certain amount of Points. The higher the number of FFT Points the slower is the printing speed. To stretch the Morse Dashes and Dots to a reasonable graphical length one may change the printing speed by changing the number of FFT Points.
Following FFT settings are available:
Fast (default setting) 128 Point FFT
Slow 256 Point FFT
Extra Slow 512 Point FFT
FFT Settings 64 to 8192 Point FFT
Just select any Number you are convenient with.
Numbers of 1024 or more are used when receiving QRSS signals (extreme slow Morse)
Note: The Spectrograph (FFT) Settings have absolutely NO link and NO effect to the performance of Morse-Signal filtering and decoding algorithm itself.
Attach function Windows
A number of windows appear and dock around the Main Window. This will give you a convenient overview and control to following Functions: Oscilloscope, Font-Size, Text Formatting, TX-Macro. The Mini Log Book can be lauched separately.