Bessel Nulls for Frequency Modulation Systems
| m = (Dev./ Fm) | (FM) | (TV-MTS) | (SCA / PRO) | |||||||
| Modulation Index (m) | (Fm) for 75 kHz Deviation | (Fm) for 25 kHz Deviation | (Fm) for 5 kHz Deviation | |||||||
| Null | Carrier | 1st Sidebands | Carrier | 1st Sidebands | Carrier | 1st Sidebands | Carrier | 1st Sidebands | ||
| lst | m=2.405 | m=3.832 | 31,185.0 Hz | 19,572.0 Hz | 10,395.0 Hz | 6,524.0 Hz | 2,079.0 Hz | 1,304.8 Hz | ||
| 2nd | m=5.520 | m=7.016 | 13,587.0 Hz | 10,689.9 Hz | 4,529.0 Hz | 3,563.3 Hz | 905.8 Hz | 712.7 Hz | ||
| 3rd | m=8.654 | m=10.173 | 8,666.5 Hz | 7,372.5 Hz | 2,888.8 Hz | 2,457.5 Hz | 577.8 Hz | 491.5 Hz | ||
| 4th | m=11.792 | m=13.323 | 6,360.2 Hz | 5,629.4 Hz | 2,120.1 Hz | 1,876.5 Hz | 424.0 Hz | 375.3 Hz | ||
| 5th | m=14.931 | m=16.470 | 5,023.1 Hz | 4,553.7 Hz | 1,674.4 Hz | 1,517.9 Hz | 334.9 Hz | 303.6 Hz | ||
| 6th | m=18.071 | m=19.616 | 4,150.3 Hz | 3,823.4 Hz | 1,383.4 Hz | 1,274.5 Hz | 276.7 Hz | 254.9 Hz | ||
| 7th | m=21.212 | m=22.760 | 3,535.7 Hz | 3,295.3 Hz | 1,178.6 Hz | 1,098.4 Hz | 235.7 Hz | 219.7 Hz | ||
