A note on frequencies and bands

HF 3 to 30 MHz
VHF 5 to 200 MHz
UHF 500 to 1000 MHz

And now its about bands ( not rock ! ) all frequencies in GHz

L S C X Ku K Ka V
1-2 2-4 4-8 8-12 12-18 18-27 27-40 40-80

as we move from L --------> V, PMPO decreases.