kopia lustrzana https://github.com/f4exb/sdrangel
112 wiersze
4.4 KiB
Markdown
112 wiersze
4.4 KiB
Markdown
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<h1>Spectrum markers management</h1>
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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).
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<h2>General interface</h2>
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<h3>1. Sub-dialog selection</h3>
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The complete dialog is split into tabs:
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- **Hist** for histogram (spectrum line) markers
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- **Wat** for waterfall markers
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<h3>2. Markers set selection</h3>
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This lets you selects which markers are displayed
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- **None**: no markers are displayed
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- **Spec**: spectrum markers are displayed
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<h2>Histogram markers tab</h2>
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<h3>1. Marker frequency</h3>
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Use this frequency dial to set the marker frequency in Hz
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<h3>2. Center marker frequency</h3>
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Push this button to move the marker at the center of the spectrum
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<h3>3. Marker color</h3>
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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.
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<h3>4. Marker show</h3>
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Toggles marker display on the spectrum
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<h3>5. Marker selection</h3>
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Turn the dial button to select the marker being set up. The index of the marker appears at left.
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<h3>6. Swap marker with reference marker (index 0)<h3>
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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.
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<h3>7. Add/Remove marker</h3>
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- Press the "+" button to add a new marker with a maximum of 4 markers.
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- 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.
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<h3>8. Power hold reset</h3>
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When the power max hold is selected (9) this button resets the max hold
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<h3>9. Marker type</h3>
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This combo lets you select the type of marker:
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- **Man**: manual power set. The value is set with the next control (10)
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- **Cur**: current power. The marker will move according to the current power at the marker frequency
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- **Max**: max hold. The marker will move according to the maximum power at the marker frequency. Use button (8) to reset.
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<h3>10. Manual (fixed) power</h3>
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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.
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<h2>Waterfall markers tab</h2>
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<h3>1. Marker frequency</h3>
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Use this frequency dial to set the marker frequency in Hz
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<h3>2. Center marker frequency</h3>
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Push this button to move the marker at the center of the spectrum
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<h3>3. Marker color</h3>
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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.
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<h3>4. Marker show</h3>
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Toggles marker display on the spectrum
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<h3>5. Marker selection</h3>
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Turn the dial button to select the marker being set up. The index of the marker appears at left.
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<h3>6. Swap marker with reference marker (index 0)<h3>
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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.
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<h3>7. Add/Remove marker</h3>
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- Press the "+" button to add a new marker with a maximum of 4 markers.
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- 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.
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<h3>8. Time mantissa</h3>
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The time mark of the marker is given in seconds by mantissa M and exponent E so that t(s) = M × 10<sup>E</sup>. 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.
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<h3>9. Time exponent</h3>
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This slider lets you control the exponent part E of the time mark so that t(s) = M × 10<sup>E</sup>. The value in exponential notation appears on the left.
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