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Old 03-02-2007, 11:03 AM   #1
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Default How Good Is THis radio & servo

Airtronics MX-3S 3-Channel FM/2 94102Z Servo radio could you please tell me why trying to find good radio .

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Old 03-02-2007, 11:35 AM   #2
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If you are just planning to play around then that system is probably just fine.

I owned a MX-3S and it was okay. I traded for a Futaba 3PM-FS and I like it a lot better. The MX-3S has a nearly useless single page instruction manual and it doesn't explain what any of the settings actually do. The Futaba has a good instruction bound manual that has all the options listed out and what they do.

That servo is sort of weak for r/c racing. It's considered slow at .22 and with only 50oz/in of torque it doesn't have any power. I'm more of an offroad guy but I suspect for onroad touring you want a fast servo in the .1 - .15 range max with at least 80oz/in of torque.

In almost every radio combined with a servo in a package the servo sucks for racing. Why do the manufacturers do this? I have no idea. I guess it's to keep their systems competitively priced. Maybe most of the people don't race and therefore just need something that works that has below average performance. Your best bet to save money is to find places that sell the radio and receiver only, then buy the appropriate servo for your racing application.
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Old 03-02-2007, 12:08 PM   #3
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Futaba 3PM-FS Is the best BANG FOR THE BUCK radio out there. If your doing anything nitro or racing you should go for FM and this radio does it on a budget..

I use the Futaba 3PK and its awsum. i oftern the the 3pm the 3pk without the bling. All the core "nessasary" functions to go racing or run nitro are there with 10 model memory
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Old 03-02-2007, 02:57 PM   #4
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This radio is perfectly fine for racing, and has alot of features that are needed to properly setup you car for racing. These type of questions lead to personal opinions only. Exp the futaba is 3PM is comparable, but if you like airtronics as a manufacture you would get the MX-3S, and if you are a Futaba guy the 3PM is it! (hey I like playstation I think its better than the Xbox, but I am Bias because I only owned playstations. So If a guy had a Xbox and you asked him what system has the best graphics what do you think he would say? Exactly!

So get what you like and can afford just check the features first and see what you really need and what you can get away with not having.

New "Z" connectors compatible with most other brands although not
compatible with older connectors without adapters (see comments)
Large easy to read LCD display on rear right of transmitter
18 model memory
1-touch digital trims with memory and shown on adjustable LDC display
Adjustable trim rates
Adjustable servo speed to speed or reduce response
Exponential adjustments for steering and throttle
End Point Adjustment (EPA) independently adjust the endpoints
for the throttle and steering
Narrow band
Adjustable 70/30 trigger
Non Slip rubber steering wheel
Servo reversing
Sub trims, trim reset, wrist strap hook
Nicd charge jack at rear of transmitter
Audio Beeps can be turned OFF with simple startup procedure
Adjustable tension on throttle lever with simple screw adjustment
Null Zone adjustment for trigger
Power indicator lamp with audible alarm under 9.1 volts
1 year warranty
Synthesized frequency channels for the transmitter and receiver
Cartridge type battery tray to quickly change batteries
Dual Screen for easy and fast programming
New foam steering wheel grip

what more do yo need FM and Synthesized frequency (no more crystals) its perfect for racing. you can backyard bash on AM.
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Old 03-02-2007, 03:07 PM   #5
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With regards to servos and racing try to stay with a servo with a speed rated under .14 the lower the better. On the torque side of things 70 + ounces should be great for electric touring sedans.

In this department more is always better
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