Hi, I recently browsed through one topic on 2.4Ghz which says, "its best to use a battery Voltage which is higher then 4.8V as 2.4Ghz RX is due to reset if the voltage is lower then 4.8V, most RX can take a Voltage between 4.8V to 8V"

But wait guys I need help here ... I bought Esky ET4 2.4Ghz Tx which comes with a receiver (yes from Ebay) I first asked the seller if this can be use on a normal plane (I was thinking Esky is for Heli) I got a response from the seller saying that he too have been using it on a scale plane.

What worries me is that the TX set does not comes with a manual, (there is no manual according to manufacturer- email) so I search about the control range of the TX but could not find it.

Has anyone tested or use this Esky ET4 2.4GHz on a plane ? What is the control range ?

I would say you do a range test yourself.  If there is no option to reduce the power on this TX, you might need to get creative with a full range test with the possible use of more than 2 people and mobile phones held a few feet away from the model/radio

Ha.. maybe after losing Rs.10000/- plane I`ll realized it`s a short range hehe

This is one reason why a good radio should be opted for, if the circumstances are favorable.  It takes some of the guesswork out, resulting in more confidence and peace of mind.

It has a 4mv transmitting power and its range is around 55-70 percent of that of the DX6.  A safe estimate would be 300-430m.