Spektrum 6DX vs Spektrum 7DX (elec RCH)

[Drekhh]

Hi,

I am new to RC helicopters and considering buying the Trex 450 (se v2), but I am unsure which radio is best, Spektrum 6DX/6DXi or Spektrum 7DX (2.4Ghz systems)?

It seems most folks like the Spektrum DX7 and recommend spending as much as you can on a radio for the future. What I wanted to know is, do I require 7 channels to fly this helicopter or are 6 channels just fine? What does an extra channel give me?

Finally Futaba or Spektrum, is there much difference between the standard of these two controllers?

Thanks
Drekhh

[jamiem]

you only need 6 channels for the 450se v2, but consider if you will eventually buy a bigger heli. if you do you will obviously have to sell up and get a dx7 or equivalent. I personally prefer the feel of the spektrum and like the model matching feature.

[moyesboy]

The dx6 is not a "full range" system and it uses DSM1 ratherthan theDSM2 on the DX7. - so it uses its own 6 ch receiver. The DX7 will drive that receiver but the Dx6 won't drive the AR7000 or AR6200 DSM2 receivers.

The DX6i (the new curvy one)I think is DSM 2 and fullrange (ie compatable withthe DX7 but only6 channels).
Were you to get a bigger heli you might like to use 7 channels for a governor, but the trex450 only needs 6 channels.

The Dx6 is adequate for a trex450 or any other park fly model that doesn't fly far away. to fly larger models you shoud use the DSM2 system which is full range (about a kilometer ie plenty!).

Th 2.4Ghz systems are definitely the way to go with small electric models where on 35Mhz the electrics can interfere with eachother.

[Bubblefish777]

while we're on the topic.... there's a guy on eBay selling Ar7000 and AR6200 Rx's for dollars what we pay in pounds. I sent off for 4 * Ar7000's and will let you guys know what happens in terms of arrival times and VAT/IMPORT duty etc. Hopefully cause it's a tiny package it'll slip through without either