Spectrum markers management
The spectrum markers are controlled with this dialog. Note that spectrum markers will effectively show on the spectrum display only when it is active (shows some data).
General interface
1. Sub-dialog selection
The complete dialog is split into tabs:
- **Hist** for histogram (spectrum line) markers
- **Wat** for waterfall markers
2. Markers set selection
This lets you selects which markers are displayed
- **None**: no markers are displayed
- **Spec**: spectrum markers are displayed
Histogram markers tab
1. Marker frequency
Use this frequency dial to set the marker frequency in Hz
2. Center marker frequency
Push this button to move the marker at the center of the spectrum
3. Marker color
The marker color is displayed here. You can click on the square to open a standard color selection dialog to select the marker color. Note that it selects the color of the text display of the marker the crosshairs remain in white color.
4. Marker show
Toggles marker display on the spectrum
5. Marker selection
Turn the dial button to select the marker being set up. The index of the marker appears at left.
6. Swap marker with reference marker (index 0)
Push this button to swap the current marker with marker at index 0. The marker at index 0 is the reference marker. Note that the colors are not swapped so that the marker color is associated to its index and not the marker itself.
7. Add/Remove marker
- Press the "+" button to add a new marker with a maximum of 4 markers.
- Press the "-" button to remove the current marker. When reference marker (index 0) is removed the marker at index 1 if it exists replaces it and thus is made the reference marker.
8. Power hold reset
When the power max hold is selected (9) this button resets the max hold
9. Marker type
This combo lets you select the type of marker:
- **Man**: manual power set. The value is set with the next control (10)
- **Cur**: current power. The marker will move according to the current power at the marker frequency
- **Max**: max hold. The marker will move according to the maximum power at the marker frequency. Use button (8) to reset.
10. Manual (fixed) power
Use this slider to adjust the power position of the marker. The units are in dB irrespective of the linear or log set of the spectrum display.
Waterfall markers tab
1. Marker frequency
Use this frequency dial to set the marker frequency in Hz
2. Center marker frequency
Push this button to move the marker at the center of the spectrum
3. Marker color
The marker color is displayed here. You can click on the square to open a standard color selection dialog to select the marker color. Note that it selects the color of the text display of the marker the crosshairs remain in white color.
4. Marker show
Toggles marker display on the spectrum
5. Marker selection
Turn the dial button to select the marker being set up. The index of the marker appears at left.
6. Swap marker with reference marker (index 0)
Push this button to swap the current marker with marker at index 0. The marker at index 0 is the reference marker. Note that the colors are not swapped so that the marker color is associated to its index and not the marker itself.
7. Add/Remove marker
- Press the "+" button to add a new marker with a maximum of 4 markers.
- Press the "-" button to remove the current marker. When reference marker (index 0) is removed the marker at index 1 if it exists replaces it and thus is made the reference marker.
8. Time mantissa
The time mark of the marker is given in seconds by mantissa M and exponent E so that t(s) = M × 10E. This part controls the mantissa component M that appears on the left. The slider lets you control the decimal part from .000 to .999 and the dial button the integer part from 0 to 9.
9. Time exponent
This slider lets you control the exponent part E of the time mark so that t(s) = M × 10E. The value in exponential notation appears on the left.