I have noticed that when you are flying your quad copter the kettle in the hut seems to boil the water much more quickly, is there any interaction between your 5.8 GHz transmitter and the kettle?

Please keep your answer simple so that us non-techies can understand it.

I have been researching 2.4Ghz interference. Basically both fast and dsm are bullet proof, they transmit faster, recover faster and outrange anything we have ever had before.

There is however one know weakness for dsm. Now this has nothing to do with 5.8Ghz this is all about 2.4Ghz video interference. Essentially there is a small possibility that when you switch on, your radio will randomly choose two channels that are close together or adjacent. More sensibly your radio should choose two channels that are far apart but it does not.

2.4Ghz channels actually overlap anyway but that is another story. Now for this to happen the video sender would need to be off, else the radio would not pick those channels in the first place. So your radio has started up and it has a one in eighty chance of picking two channels side by side.

Thats the first condition. Now someone must switch on a 2.4Ghz video sender using one of three video channels that just happens to cover both the radio channels, perhaps a one in six chance of that happening, also the video sender must be outputting at least 600milliwatts and be positioned closer to your receiver than your transmitter!

I conclude that the tester was being scrupulously fair but the odds of these conditions all coming together are pretty long. We can make them longer by banning 2.4Ghz video kit at the site.

The same tester reports that fast systems are failing when overheated, 120o seems to be the tipping point. Perhaps Tom will need to change to Spektrum after all, as global warming rolls in.

You are right Rod 2.4ghz video senders are not a good idea but when used at the legal power level (10mw) they only interfere with 2.4ghz receivers that are very close by (a few inches away) but since I use 2.4ghz receivers in all my flying contraptions I went down the safe road of installing a 5.8ghz downlink.

The overheating you refer to in futaba receivers was caused by the uninformed wrapping them in foam in the mistaken belief that this was neccessary for vibration protection and the same applies to spectrum cra**.:D

I was going to dabble in the hobby of uncontrolled missile launches but changed my mind when I realised that you could make one by installing a spectrum receiver in just about anything 

See you soon.

http://diydrones.com/profiles/blog/show?id=705844%3ABlogPost%3A47140   Found this article Very interesting;)                                                 MERRY CHRYSTMAS......A bit early I know,butI know so many beutiful and happy people I thought Id start with the Mierable Argumentive  """kers first

Hi Tom glad you got the Quad  it,s fairly livend up the heli part of the site

Hello again Eck.

Yes all this discussion has brought the heli part of the website to life and you can't beat a good argument !!! especially about the merits of both Futaba and Spectrum radio systems :D. Rod is right they are both substantial improvements on the old 35mhz system but look out for fake spectrum receivers that are appearing on the market especially ebay,they are easy to distinguish from the genuine article because they work !!!

See you later Eck !

Tom,

Enjoy it while you can. Given all past history, the likely scenario is for the SAA to ignore it for about two years, then introduce a number of highly restrictive rules and require you to sit for your bronze quadcopter and bronze FPV before you can fly with their blessing. You'll probably need a failsafe parachute system or suitably sized helium balloon. You may also have to emply someone to walk in front of it with a red flag and guarantee that you cannot fly faster than 5 mph.

I'm still awaiting a reply from my early questions on whether they were supportive of 2.4GHz systems! For a while, it looked like they were going to ban them.

Remember, it's not paranoia if they really are out to get you!

Can't wait to see the Silver Or Gold FPV Test 

Well I plan to be hanging underneath my tricopter so FPV is a bit passe. The motors that arrived yesterday were unexpectedly large, about the size of car starter motors, but I guess I can live with that. The batteries are coming from Hong Kong and I know they are 500x300x300mm so thats ok. The problem I have is with the speed controllers, Pickfords couldn't get the low loader down the drive.