Guy with heli has this frequency doesnt know what channel doesnt know

Chanell 54...

Here's the entire 72 Mhz frequencies

Channel 11 72.010 MHz
Channel 12 72.030 MHz
Channel 13 72.050 MHz
Channel 14 72.070 MHz
Channel 15 72.090 MHz
Channel 16 72.110 MHz
Channel 17 72.130 MHz
Channel 18 72.150 MHz
Channel 19 72.170 MHz
Channel 20 72.190 MHz
Channel 21 72.210 MHz
Channel 22 72.230 MHz
Channel 23 72.250 MHz
Channel 24 72.270 MHz
Channel 25 72.290 MHz
Channel 26 72.310 MHz
Channel 27 72.330 MHz
Channel 28 72.350 MHz
Channel 29 72.370 MHz
Channel 30 72.390 MHz
Channel 31 72.410 MHz
Channel 32 72.430 MHz
Channel 33 72.450 MHz
Channel 34 72.470 MHz
Channel 35 72.490 MHz
Channel 36 72.510 MHz
Channel 37 72.530 MHz
Channel 38 72.550 MHz
Channel 39 72.570 MHz
Channel 40 72.590 MHz
Channel 41 72.610 MHz
Channel 42 72.630 MHz
Channel 43 72.650 MHz
Channel 44 72.670 MHz
Channel 45 72.690 MHz
Channel 46 72.710 MHz
Channel 47 72.730 MHz
Channel 48 72.750 MHz
Channel 49 72.770 MHz
Channel 50 72.790 MHz
Channel 51 72.810 MHz
Channel 52 72.830 MHz
Channel 53 72.850 MHz
Channel 54 72.870 MHz
Channel 55 72.890 MHz
Channel 56 72.910 MHz
Channel 57 72.930 MHz
Channel 58 72.950 MHz
Channel 59 72.970 MHz
Channel 60 72.990 MHz

If you know the frequency (72.870 for example), just add 21 to it and then divide by 2.

87 + 21 = 108

108 / 2 = 54

Channel 54 = 72.870

thanks.

Great, now I have to take a calculator with me