Thread: 2.4Ghz
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Old 09-27-2007, 07:59 PM
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Default RE: 2.4Ghz

To understand 2.4GHz systems firstly you need to stop thinking in the same terms as you used to think when working with 35/36/72MHz systems.

Even if someone switches on, on the same channel as you are on (with a device such as a cordless phone or bluetooth transmitter), you will not be shot down. This is were the real advantage of 2.4GHz over 72/35/36MHz systems. This is done via binding the receiver to a transmitter with a unique code as implemented by all the major players (XPS, Spektrum(JR) and Futaba(FASST)). The receiver will look at all the data transmitted on its frequency and filter out the data that has its unique identity code. This may lead to a case of the system acting sluggishly due to some of the transmitter data getting lost in the noise. It is in the same manner that multiple laptops can operate using the same WIFI access point at the same time on the same frequency. The only true cases of interference that I have truly heard of is when the receivers are saturated due to the placing of a high powered transmitter right next to it such as wireless cameras. (You can simulate this also in the 35/36/72MHz systems by turning your transmitter on and placing it next to a receiver operating on a different frequency and you will see what I mean)

The main disadvantage of the 2.4GHz systems over the older systems is the problems due to the higher sensitivity of the systems to low power brown outs forcing the systems to "Reboot", but proper battery management and common sense seems to be the solution to this.