There are several versions of the Futaba 7CAP in Tower Hobbies. One is really cheap because it comes with only 2 servos but it also has a different name than the rest. They are all 7CAP - 7 Channel PCM but one of them is 7CAP - 7 Channel PCM Computer, which is the cheaper one. What's the difference?

Question, if you are already buying a radio system at this price shouldn’t it be 2.4 GHz
Spread Spectrum?
I don’t know how is it at the field you are flying if its crowded or not.

I bought “just for now� a tower hobbies 6 channels and what happens now is that I got two airplanes on it and im buying a new 2.4 GHz Spread Spectrum, so now I’ll have two radio systems…
I’m sorry I didn’t buy Spread Spectrum at the beginning…
I’m trying to help and not add to the confusion

Both 75 mhz radios are for surface use (cars).
If you plan to use the radio for aircraft, purchase one of the other ones, the difference on both are the recievers.

Hope this helps.

Thanks to both for the feedback, but I want to know precisely what does the Computer thing mean.

They are BOTH "computer" radios because they can be programmed and have processers in them. They just left the word "computer" out of one ad.

All the Futaba 7C series transmitters are computer controlled. That just means you have memory to store different models as well as advanced features such as mixes, trimmable endpoints, etc. For example, when you input aileron control, you can program the radio to also give you coordinated rudder input set at 25%, 50%, 37% or whatever.

You can also disable all computer functions and fly it like an entry 4 channel system. I happen to like exponential control. I can "soften" the throws for the various controls. That means if I move the aileron stick 25% I may only get 10% deflection on the actual ailerons. As I keep moving the stick more away from center, the aileron begins to move faster. Sort of like having low rates only on the first 30% or so of stick movement, regular rates on the next 25% of stick movement and high rates for the final 45% of stick movement. Neat stuff.

I have to agree with alex. You are probably better off getting a 2.4 ghz radio now. If you plan on staying in this hobby you are probably going to buy one anyways down the road, so why not just buy one now.

Austin

I must agree. I had (have) three 72 MHz radios, all on different channels. One is channel 11, one is 15, and one is 42. Oh, I also have one on 48 which came with the RTF Hobbico Super Star trainer I bought as a club trainer. I may change that, but that's not the point here.

I bought the Spektrum 2.4 GHz Spread Spectrum system when it first came out and use it all the time now. All other planes that had the 72 MHz have been converted over to the 2.4 Gig system. It has multiple model memory as well as all the computer controls that you need. The reason for the conversion is that the systems are remarkably free from interference as compared to the 72MHz systems. No one can come in and 'accidentally' turn on their transmitter and shoot my plane down.

So, as mentioned above, if you are going to buy a new system, consider one of the fine 2.4 Gig systems out there. Regardless of the manufacturer, be it Spektrum, JR, Futaba, and I understand Airtronics is coming out with one.. they are all fine systems and will definitely serve you well in the coming years.

CGr.

Go for the 2.4GHz version of the 7C or look at the 9C. If you get a 72MHz version of the 7C you'll be stuck with whatever frequency it comes with, unless you want to send it into a service center for a frequency change. The 9C has modules, so you can just get a different 72MHz channel module, or you can even buy a 72MHz synthesized module that can be tuned to all the 72MHz band channels. You can also get a 2.4GHz module for the 9C.

Look at the Spektrum DX7 too, it's a better radio IMO than the 2.4GHz 7C.