Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: des321 on May 07, 2009, 08:59:48 pm

Title: rc choice
Post by: des321 on May 07, 2009, 08:59:48 pm
Hi guys,
I am building my second model and am very new to the world of rc. I want 4 channels for my new model. I have discussed the subject with members at my local club and get so much conflicting advice.
I would like a system that will be robust, easy to use and also be available for future builds.
My research on the web leads me to either the Spectrum DX5e or the Futaba Sky Sport 4.
Am I on the right track? Your advice will be gratefully received.
Thanks
Title: Re: rc choice
Post by: andyn on May 07, 2009, 09:25:35 pm
I reccomend the Spektrum, cheaper, future proof, more comfortable to hold...
Title: Re: rc choice
Post by: des321 on May 07, 2009, 09:34:06 pm
Thanks for that. :-)
Title: Re: rc choice
Post by: Subculture on May 07, 2009, 11:36:06 pm
If you ever intend to construct a model submarine, go for the 40mhz system.
Title: Re: rc choice
Post by: Ghost in the shell on May 07, 2009, 11:50:17 pm
FUTABA :D i have the 6EXA 40mhz set.  best radio i have used
Title: Re: rc choice
Post by: FullLeatherJacket on May 08, 2009, 06:12:32 am
I want 4 channels for my new model. My research on the web leads me to either the Spectrum DX5e or the Futaba Sky Sport 4.

Ghost
Which one of these two sets is that, then?
FLJ
Title: Re: rc choice
Post by: barriew on May 08, 2009, 08:45:30 am
Although not one of the sets mentioned, if you plan to keep on building models one with a model memory like the 6EXA has some advantages. The Spektrum equivalent - the DX6i is quite a bit more expensive, and seems to be in short supply at the moment.

I have both a DX5e and a 6EXA. I plan to move to 2.4Ghz and will buy a DX6i when I have finished this relocation :((. My only comment on the 6EXA is that the supplied battery is useless! You need to upgrade to one with more capacity.

Barrie
Title: Re: rc choice
Post by: wideawake on May 08, 2009, 09:56:56 am
Those who know my views won't be surprised that of the two I'd recommend the DX5e.   However more broadly I'd advise getting a 2.4GHz set generally.   Particularly if you're just starting out then the ability to "switch on and go" without worrying about crystals and frequency clashes is a huge bonus.   I wouldn't not buy 2.4GHz on the basis that you might build a submarine in the future.   Normal 40MHz gear is cheap and getting cheaper so  against the cost of a sub, buying a set 'specially for the sub will be a small part of the cost.

There are now a number of manufacturers offering 2.4GHz equipment ranging from simple sets like the DX5e to more complex ones such as the DX6i and cheap computer programmable sets like the Turborix.    However IMHO the Dx5e still takes a lot of beating if you want a basic set without complex menu-driven programming.

HTH

Guy
Title: Re: rc choice
Post by: tomo55 on May 08, 2009, 12:35:47 pm
Go for the 2.4 ghz set ,I fly model aircraft as well as sail model boats and now only use 2.4 ghz (Dx6i) it is ideal for my needs and only need one transmitter to do both and no waiting for crystals to be clear.
If you are only going to use it for model boats the DX5e will certainly suit, Ive got the Dx6i mainly for aero use.
I have used Futaba systems for years but the Spektrum radios are very nice and receivers are cheaper than Futaba's.
One point to be aware of is that Spektrum use 4 x 1.5V AA batteries and most re-chargable batteries Ive seen are 1.2V they still work but you are losing 1.2V ie 4.8 volts instead of 6 volts .
In a nutshell get a 2.4 ghz Spektrum.
Chris

Title: Re: rc choice
Post by: 787Eng on May 08, 2009, 02:03:26 pm
Go Spektrum, you will never regret it :-))
No interference form you on-board equipment especially electric motors.
No waiting for the frequency
No one switching on and causing you interference >>:-(
No trying to fine a place for that long receiver aerial

but i would recommend at least a 6i as it gives you more functionality with things like mixers (mix one channel to another) for use with things like twin props....

I have used spektrum for several years and have NEVER had problems and I also have come from the Airplane/helicopter and TURBINE jet world. if its good at 200mph its good for boats and have never had a problem with it in boats.

Also Spektrum receivers are cheaper than FUBAR receivers....
Mark
Title: Re: rc choice
Post by: malcolmfrary on May 09, 2009, 11:59:44 am
I would go along with a new starter opting for 2.4G, but I would quietly ignore the advice that it "is immune to interference".  It is a digital system, the signals are very robust and have enormous resistance to interference, vastly better than preceding systems, but this does not mean that interference cannot happen.  Being digital, it will work until conditions prevent it working, when it will fail compltely.  Local interference generated by a motor with mildly suspect wiring and tired brushes at long range will do the job nicely.
Title: Re: rc choice
Post by: Mankster on May 09, 2009, 01:03:58 pm
Depending on your budget, I would think a little outside the box and go for one of the marine specific radios, rather than ones designed for pilots, from Robbe or Graupner. You can get them in 40mhz variety (if you already have boats kitted out with 40Mhx RX's that you dont fancy changing, or want to use then in submarines) but with an interchageable RF module so you can fit a 2.4GHz one at a later dater or 2.4Ghz out of the box.
Title: Re: rc choice
Post by: des321 on May 09, 2009, 10:39:16 pm
Hey, :-)
Thanks everyone for your thoughtful replies. Really shows the value of the Forum. I think we can draw a line under this one now.