Read some of the manual, The binding process and the 2 channels are a great idea, but done some checking and I still say that other 2.4GHz devices may casue problems. Of course they wont advertise this as no one would buy them if they did, but to say it certainly will not is asking for trouble, what they probably mean is it may stop working be wont casue unpreditable results.

The 802.11b Wi-fi standard used 11 channels for the whole spectrum and when they actaully tested them, they found they could only reliablely use 3 of them because they interfere with each other in practice. So if there are 3 WLAN access points in a venue the whole spectrum will already be full. This data is in packet form so does not transmitt all the time, one of these radio sets could then allocate an overlapping frequency.

I should point out that this is still extremly unlikely to cause the robot to go out of control but could intermitantly enter failsafe. With only one or 2 robots using these I doubt this will cause a problem or even be noticed if it did, but if more used them then the chance of problems increases.

As proven many times before you can only use the same frequency band so much before problems arise and this band is not reserved for model use as 40MHz is.

Bluetooth uses 80 channels as well so I suspect that its the same technology as this but with more range and without the frequency hopping, which makes it resaonalby cheap.

Having said that if I needed a new transmitter Id seriously think about these, they still have alot of advantages, the most for me is that it will have predictable behaviour like PCM (but cheaper) on loss of signal, so less chance of a weapon firing on its own.

The only problem I see so far is how to extend the areial so the rx is well inside the robot but Im sure the manufactures can advise people.

Kane, If you get one then Ill bring my 27MHz set and see if it stops it as even there manual says theres no posibility of this.