mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-10-30 12:30:23 -04:00
50 lines
2.1 KiB
Plaintext
50 lines
2.1 KiB
Plaintext
|
// Status=review
|
||
|
|
|
||
|
|
The following controls appear at the bottom of the Wide Graph window.
|
||
|
|
With the exception of *JT65 nnnn JT9*, they affect only the graphical
|
||
|
|
displays — they have no effect on the decoding process.
|
||
|
|
|
||
|
|
image::images/wide-graph-controls.png[align="center",alt="Wide Graph Controls"]
|
||
|
|
|
||
|
|
- *Bins/Pixel* controls the displayed frequency resolution. Set this
|
||
|
|
value to 1 for the highest possible resolution, or to higher numbers
|
||
|
|
to compress the spectral display. Normal operation with a convenient
|
||
|
|
window size works well at 2 to 8 bins per pixel.
|
||
|
|
|
||
|
|
- *JT65 nnnn JT9* sets the dividing point (blue marker) for wide-band
|
||
|
|
decoding of JT65 and JT9 signals in *JT9+JT65* mode. The decoder
|
||
|
|
looks for JT65 signals everywhere, but JT9 signals only above this
|
||
|
|
frequency.
|
||
|
|
|
||
|
|
- *Start nnn Hz* sets the low-frequency starting point of the
|
||
|
|
waterfall frequency scale.
|
||
|
|
|
||
|
|
- *N Avg* is the number of successive FFTs to be averaged before
|
||
|
|
updating the spectral display. Values around 5 are suitable for
|
||
|
|
normal JT9 and JT65 operation. Adjust *N Avg* to make the waterfall
|
||
|
|
move faster or slower, as desired.
|
||
|
|
|
||
|
|
- *Zero* and *Gain* control the reference level and scaling for
|
||
|
|
waterfall colors. Values around 0 for both parameters are usually
|
||
|
|
about right, depending on the input signal level, the chosen palette,
|
||
|
|
and your own preferences.
|
||
|
|
|
||
|
|
- A dropdown list below the *Palette* label lets you select from a
|
||
|
|
wide range of waterfall color palettes.
|
||
|
|
|
||
|
|
- Click *Adjust* to activate a window that allows you to create a
|
||
|
|
user-defined palette.
|
||
|
|
|
||
|
|
- Check *Flatten* if you want _WSJT-X_ to compensate for a sloping or
|
||
|
|
uneven response across the received passband. For this feature to
|
||
|
|
work properly, remember to restrict the range of displayed frequencies
|
||
|
|
so that only the active part of the spectrum is shown.
|
||
|
|
|
||
|
|
- Select *Current* or *Cumulative* for the spectrum displayed in the
|
||
|
|
bottom one-third of the Wide Graph window. *Current* is the average
|
||
|
|
spectrum over the most recent *N Avg* FFT calculations. *Cumulative*
|
||
|
|
is the average spectrum since the start of the present UTC minute.
|
||
|
|
(*Linear Avg* is not useful for JT9 or JT65; it is intended for use
|
||
|
|
with the yet-to-be implemented JT4 mode.)
|
||
|
|
|