A lot more work needs to be done to make this presentable for an image addition. I will show you what is need at a minimum, but doing it this way makes the plugin useless for Universal lnb blindscan.

Add a routine to calculate a 10750 lnb.
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Change the lnb cutoff to 11550 (I used 11500)
This cutoff exists in two places.
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Configure Limits
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Doing it this way deletes the first 150 MHz of transponders (11700 - 11850). So you need to drop down at least 150 MHz with the bottom scan limit (11700 - 150 = 11550).