Menu toolbar:
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start receiving images
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stop receiving images
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force a restart (e.g. when you see a wrong synchronization then click the restart buttton).
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save the image at any time using the save button. You will probably want to use this if the Autosave is not selected.
- Mode: you can either select AUTO or one of the supported SSTV modes. When AUTO is selected, the program will try to determine the mode of the image it is receiving. If a specific mode is selected the program will reject all images except if they are transmitted in the selected mode.
Sync Indicator (vu-meter S):
- sync quality ranging from 0-10
Volume (vu-meter V):
- adjust your recording level to half scale.
SSTV tab:
- Use VIS Code: the reception will only start if a correct VIS code is received. If left unchecked, QSSTV will autodetect the modes (this is the most used method).
- Autoslant: A lot of times the receive clock of the local station is not equal to the transmit clock of the sending station. The result is a slanted image. If The autoslant is activated, the program will automatically try to compensate for those clock differences. You may notice a momentary freeze of the image build-up while the program is recalculating the image.
- Autosave: When at least 1/3 of an image is received and the program detect the end of the image, the image will be saved on disk.
- Filter: Only 1 filter is provided at this moment: a 600Hz Video filter (other filters will be added).
- Sensitivity: 1 is low, 2 medium and 3 high sensitivity. When the Sensitivity is set to 1, the synchronisation will be more strict and require a good signal before it's synchronizing. If it is set to 3 the synchroniser is more likely to start also on noise;
Spectrum:
You can select the spectrum or the waterfall by clicking in this window. In SSTV the spectrum gives you better view. There are three markers (red lines):
- 1200: Sync frequency
- 1500: Lower video frequency
- 2300: Upper video frequency