What is 2.4 GHz?
Photo 1 All of our current aircraft radio control systems operate on one of fifty channels in the 72 MHz (each MHz means the signal’s frequency is one million cycles per second) radio transmission “Band”. “Band” is the range of frequencies that our transmitters use to send signals to our receivers. Our Frequency Band starts at 72.010 MHz (72,010,000 cycles per second) and goes up to 72.990 MHz. Each specific frequency in this band has a 5-number numerical identifier corresponding to its number of cycles per second. It is somewhat difficult to use the actual 5-number identifier in everyday field use because there are so many of them. Instead, we use two-digit “channel numbers”. A radio system operating on the 72.010 frequency is said to be working on Channel 11. One operating on a frequency of 72.990 MHz is working on Channel 60. The other 48 radio frequencies in the aircraft 72 MHz Band have numbers ranging from Channel 12 to Channel 59 in ascending order. The new 2.4 GHz (each GHz is