ET's IMDTabler - Intermodulation Distortion Table Generator

Links:  IMDTools, FreqSetGen.  Sample frequency sets:
IMD 5: 5685 5760 5800 5860 5905, IMD 6: 5645 5685 5760 5800 5860 5905
ET5A: 5665 5752 5800 5866 5905, ET5B: 5665 5752 5800 5865 5905
ET5C: 5665 5760 5800 5865 5905, ETBest6: 5645 5685 5760 5805 5905 5945
ET6minus1: 5645 5685 5760 5905 5945, ET 5: 5665 5725 5820 5860 5945
raceband: 5658 5695 5732 5769 5806 5843 5880 5917, Freq in YT video: 5780 5860 5945

Enter frequencies:

(Hover the mouse cursor over table cells for information)

5658 5695 5760 5800 5880 5917
5658 5621 5556 5516 5436 5399
5695 5732 5630 5590 5510 5473
5760 5862 5825 5720 5640 5603
5800 5942 5905 5840 5720 5683
5880 6065 6000 5960 5843
5917 6074 6034 5954

IMD rating (100=best): 29

5732 is 28MHz away from 5760
5630 is 28MHz away from 5658
5862 is 18MHz away from 5880
5825 is 25MHz away from 5800
5720 is 25MHz away from 5695
5640 is 18MHz away from 5658
5942 is 25MHz away from 5917
5905 is 12MHz away from 5917
5720 is 25MHz away from 5695
5683 is 12MHz away from 5695

IMD rating: A "perfect" table will be rated at 100; lower values are worse. For each (valid) cell in the table with a frequency-difference value less than 35, a value of (35-diff)^2 is added to a ratings total (the squaring is to make low-difference values detract more from the IMD rating). The ratings total is then divided by the number of selected frequencies and again by 5, and then subtracted from 100 to get the IMD rating.


                 1       2       3       4       5       6       7       8
Band F: 5740 5760 5780 5800 5820 5840 5860 5880 (IRC NexWave / Fatshark)
Band E: 5705 5685 5665 5645 5885 5905 5925 5945 (Boscam E / DJI)
Band B: 5733 5752 5771 5790 5809 5828 5847 5866 (Boscam B)
Band A: 5865 5845 5825 5805 5785 5765 5745 5725 (Boscam A / TBS / RC305)
Band R: 5658 5695 5732 5769 5806 5843 5880 5917 (Raceband)

IMDTabler Version 1.1


5.8GHz FPV "Visual" Frequency Chart

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