open the top to that army radio and you will see a card showing that this little jewel transmits on four bands : band 1 from 2.2 to 2.85 mhz ; band 2 from 2.8 mhz to 3.65 mhz ; band 3 from 3.6 mhz to 4.7 mhz and band 4 from 4.6 to 6.0 mhz or 2.2 mhz to 6.0 mhz .