L Edge
Master member
Back before 2.4 times, there were a fixed number of 72 megahertz slots that you could fly on. The range allowed certain channels for cars, airplanes and that was all that was allowed.
So in a club situation, it meant there needed to be control of only one pilot turning on their equipment and using it. If another pilot turned on his equipment when you are flying on the same frequency, chances are the transmitter signals did not match your servos, causing you to be "shot down" and your plane could be wounded or total destroyed. The usual method to prevent that was to place a clothes pin on that frequency board, so it identifies that you do not use this channel until the person quits flying and shuts off and takes that pin off. So if a pilot arrives at the field and forgets to check the freq board and powers up, your beautiful model can vist the ground gods rather quickly.
If you had a large gathering at the club field, and with the limit number of freqs, you might have 4-5 pilots all on the same frequency, that means you fly very few times during your stay. A flight from start to shutdown averages 10 to 15 min.
If you entered competition where you have 2-3 flightlines, certain combos of frequencies could also down your airplane if the harmonics were just right. Also, if you were going to meets around the country, there were certain freqs that could not be used due to interference from local electronic equipment. So it meant you need different crystals for your receivor and you would have to set up you plane on all new settings.
Last, if the neighbor didn't like the noise and knew electronics, all he had to do generate a signal in that same range RC equipment was on and cycle it, and it forced a bunch of AMA clubs to relocate due to interference.
Hooray for 2.4!!!!!!!!!!
So in a club situation, it meant there needed to be control of only one pilot turning on their equipment and using it. If another pilot turned on his equipment when you are flying on the same frequency, chances are the transmitter signals did not match your servos, causing you to be "shot down" and your plane could be wounded or total destroyed. The usual method to prevent that was to place a clothes pin on that frequency board, so it identifies that you do not use this channel until the person quits flying and shuts off and takes that pin off. So if a pilot arrives at the field and forgets to check the freq board and powers up, your beautiful model can vist the ground gods rather quickly.
If you had a large gathering at the club field, and with the limit number of freqs, you might have 4-5 pilots all on the same frequency, that means you fly very few times during your stay. A flight from start to shutdown averages 10 to 15 min.
If you entered competition where you have 2-3 flightlines, certain combos of frequencies could also down your airplane if the harmonics were just right. Also, if you were going to meets around the country, there were certain freqs that could not be used due to interference from local electronic equipment. So it meant you need different crystals for your receivor and you would have to set up you plane on all new settings.
Last, if the neighbor didn't like the noise and knew electronics, all he had to do generate a signal in that same range RC equipment was on and cycle it, and it forced a bunch of AMA clubs to relocate due to interference.
Hooray for 2.4!!!!!!!!!!
