Is 2.4ghz really better than 35mhz?

[muscleflex]

I'm still on 35mhz... and someone mentioned that 35mhz causes jittering and stuff...
will 2.4ghz really make a difference?

i remember i was impressed when i upgraded my nitro truck from it's basic AM radio to a dx3 and got rid of all sorts of problem... will the same thing happen if i upgrade my radio to 2.4ghz?

i know people say use 35mhz for fpv as it can fly further or something like that...

[Lynx.1677]

I honestly can't believe anyone still uses 35Mhz. I started off with it but had nothing but brown outs and crashes. 2.4Ghz is the present (was the future).

[Christimson]

I recently bought a dx6i to replace my old futaba ff8 which hadn't been used for about 10 years. As I have recently got back into helis with the new battery stuff, I found the old ff8 was twitchy with my 450 heli. Not sure if it was the 35mhz or the fact that my tx/rx was so old. Anyway I'm pleased with the Spektrum. It does the job well and I've not experienced any glitches what so ever.

[simon1]

Iv used 35mhz for over 2 years without a problem, nothing wrong with it in my opinion of course if it works why change?

[cjcj1949]

35Mhz does not cause jittering. There are advantages and disadvantages between 35Mhz and 2.4Ghz. It also depends on where you fly and how good your tx and rx are. Futaba pcm 35Mhz has failsafe and reconnects instantly. 2.4Ghz is very convenient as frequency control is automatic. 2.4Ghz is above the noise generated from motors, but the noise doesn't cause a problem with suppression. People using video links operating on 2.4Ghz tend to prefer 35Mhz to reduce interference. If the video link and control system are designed to work together there shouldn't be a problem.

Chris

[LaurenceGough]

It's IMO the best upgrade you can do if you're not already on 2.4GHz.

It's just so much better, and you will never have a glitch with 2.4GHz.

[unwind-protect]

Not better; "quicker, easier, more seductive..."

[muscleflex]

Haha...'more seductive', I like that.
My 450 twitches sometimes.... So maybe I definitely need to upgrade.

[cjcj1949]

If you fly with other people then 2.4Ghz is handy. It does go wrong all the time though, in the sense that it misses frames. Because of the way it checks its data it filters these frames out and so there is no glitch. In principle this is good, but it can make you unaware that there is a problem with your installation until there is a complete hold and you are locked into failsafe. You haven't mentioned what 35Mhz system you have. You could upgrade that to pcm to stop the twitches. You might also find that is the servos and not the tx/rx link. Or it could be the pots in the tx. 2.4Ghz is very different to 35Mhz as the wavelength is roughly 100 times shorter. That means it is 100 times more likely to be affected by metallic objects in its path. We only ever needed 1 aerial with 35Mhz, we seem to need more than 1 with 2.4Ghz. If you do upgrade to 2.4 I would certainly go for a system that has a good track record like Futaba with rxs that have dual aerials as standard that are mounted well away from any metal or carbon fibre components. That would include the main rotor if you fly in such a way that the main rotor can shield all aerials from the tx as in a roll.

Chris

[muscleflex]

thanks.
well, my setup is:
Hitec Eclipse 7
Hitec Electron 6ch receiver

on the heli, I have Align servos (410m i believe and the standard 750 gyro with tail servo)
yesterday, i accidentally walked the heli away from the tx to start my flying session and the servos started twitching about 2 feet away when i forgot to pull out the transmitter aerial. good thing i had the throttle locked on the tx.

[del19_82]

Having seen various 450's go in due to glitching from 35Mhz I wouldn't fly one on it now. You shouldn't have a problem with servo's twitching with the ariel down with any radio set because you range check with the ariel down on 35Mhz

[muscleflex]

i have to admit i dont range check... i am only hovering the heli... 20ft away from me

[barryorbik]

I was at our club yesterday and there must have been at least 20 flying fixed wing and heli's on 2.4GHz with only one fixed wing pilot still on 35MHz. Most of the members are dyed in the wool types who resist change just for the sake of it but they have nearly all gone onto 2.4GHz now. I have been to quite a few big shows this year where 35 MHz has been banned and none of the crashes at these shows were put down to radio problems (even where DX8's were being used!), which was quite a change from a couple of years ago when radio failures and strange glitches were almost an expected part of flying.

Barry

[MiniMarsh]

with 35mhz, one day your going to get a hit, with someone being on the same channel. with 2.4ghz, your never going to get a hit

[muscleflex]

i might try a 2.4ghz conversion module for my tx. i think i saw one for £40 on ebay from the states....