I am one of those non Tecy sort of people but I have been using Spectrum radio since it was introduced into the UK and now have upgraded to the JR9X TX . I fly models fitted with Petrol engines of 62cc, Electric models with 3KW 10S set ups , down to shock flyer's. I have never had a single instance with the radio in all that time , BUT I do use power supplies that are up to the job. All the big models are fitted with sub C 5 cell packs,Smaller modes are fitted with 5 cell AA packs. I never use 4 cell packs now and this gives me the safety margin I feel is needed using this radio. Some of my Digital servos needed changing to do this . I always check the voltage before flying with a decent meter that puts a load on the system..On Electric models using the ESC to provide the power for the radio I only use Switch mode Becs ,and again this has given no problems at all. Good quality switch harnesses are also a must and a lot of the cheap copies are going to fail. I only use heavy duty unites . All these thing cost very little to be sure of and is nothing compared to the cost of a model. Maybe what I do is overkill but As I said I have not had a single radio fault with 2.4. If you have a radio loss due to low battery voltage at the RX it IS YOUR OWN FAULT AND NO ONE ELSES in my book. I can't see it needs to be any more technical than that.