what do yall think of the Tower 6ch ? tech notes and manual reads just like the futaba. Looks like a twin brother for about $40 less

if you need to have servos in synchro just buy a servo synchronizer for 50 bucks it will do up to 4 servos , thats what I used on my U CAN DO before I realized that with a Y harness and mounting one of the elevator servos backwards works fine my 6EXA works great for my sport flying porposes for the price for me it did all that I wanted.

If I read the specs right, the Tower 6EX is the older verson of the Futaba radio. Futaba replaced the 6 EXA with the EXAS for about the same price so it seems tower has the older version for about $20 less. For the extra $20 I think the Futaba is a better value but the Tower 6EX seems adequate for most sport flying, from a feature function point of view. Certainly a better choice than any standard radio.

Hi all,

When it comes to Futaba, ofcourse JR is not behind in the racing field of Radios. I'm currently using JR's XP421EX 5 channel radio came with Combo of P51 Mustang PTS by Hangar 9. JR has released this 7 channel PCM radio, specifications and link are mentioned below. I want to switch to this radio. As I have been flying for the last 5 months. I want your expert opinion about this radio. Is this a good radio for a beginner who can fly solo and want to switch to that radio. Your expert opinions please.

Thanks to all and happy flying

Mody


http://www.horizonhobby.com/Products...ProdID=JRP7612

7202 Synthesized PCM Air 4-DS821 R790 Specs
# of Channels: 7 Channel
Modulation: S-PCM,Z-PCM & PPM
Band: Fully Synthesized Transmitter
Servos: DS821 Sport Digital Servos
Receiver: R790 Scan Select S-PCM
Programming Features: Aircraft and Heli
Model Memory: 20 Model Memory
Transmitter (Tx) Battery Type: 1500mah NiMh Battery


Tech Notes
Transmitter : XP7202

7 Channel
20 model memory
Aircraft and Heli programming
S-PCM (as supplied) Z-PCM and PPM (FM)
Fully Synthesized Transmitter (Frequency selection is part of the programming)
Fully Digital trims
1500mah NiMh Battery

Receiver:

R790 Scan Select PCM

PCM Modulation
7 Channels
DSC capable

Servos:

DS821 Sport Digital Servos

Torque 72 oz/in @ 4.8V, 88 oz/in @ 6.0V
Speed .19 sec/60 deg @ 4.8V, .15 Sec/60 deg @ 6.0V
Size: 1.50� X .94� X 1.47�
Weight: 1.5 oz
Ball-Bearing: Single
Motor: Cored

Programming Features:

System Mode

Model Select
Model Name
Model type Select
Modulation Select
Model reset
Trainer system select
Throttle Recovery
Input Select (Switch Select-ability for Aux 2 and Gear)
Wing type
Swashplate type
Frequency Selection (Ch 15 - 60)
Dual Rate Switch Select

Airplane Function Mode

Dual Rates
Exponential
Servo Reverse
Sub trim
Travel Adjust
Elevator to Flap Mix
Aileron To Rudder Mix
Flap System
Differential
Programmable Mix (1-6)
Fail Safe
Servo monitor

Helicopter Function Mode

Dual Rates
Exponential
Servo Reverse
Sub trim
Travel Adjust
Swashplate Mix
Throttle Hold
Throttle Curve (3) (5 pt mix)
Pitch Curve (4) (5 pt mix)
Revolution Mix
Gyro Sensing
Fail Safe
Servo monitor

looks like a nice radio for general sport flying. Servos are big and heavy, so not suitable for small planes. I imagine hte receiver is similar in size and weight.

Good mix of functions. Not what I would call a sailplane radio, at least not at first blush.

Overall looks like a good value if the electronics fit the kinds of planes you want to fly.

Thanks aeajr

What size plane would be required for this JR's 7 channel radio? also what size of engine for such plane. Pls advice, and would I be able to fly big size plane? as I have been flying solo for the last 3 months confidently. This radio doesnt have timer, is timer necessary, and what kind of Rx is this? it scans all frequencies automatically? and it doesnt need crystals?

Kindly advise, thanks once again

Mody

There is no relationship between any radio and the size of any plane. JR packages their radios with servos. Some packages have larger servos and some have small servos.

The servos in that package are for a plane in the 4-10 pound range.

Timers are not necessary in the radio. You can always pick up a timer. Timers are a convenience.

Yep, htat is the kind of receiver it is.

Thanks aeajr,

I hope I would get this radio plane coming Xmas hopefully and it would have discounts on it

Happy flying all time

Mody

Great radio!! I have been using one for several years now. ( I recently purchased the 9CS but I still use the 6XA as well. ) I really only miss one function ( on the 6XA) and thats the ability to dual- rate the rudder. ( not a big deal )

I have one....and love it!!!..Easy to program...works super!!!

on the dual rate of the rudder you are missing the greatness of the 9c of the 6 exa. You can set up triple rates on the 9c. (low ,whoa, and holy Sh*t) these settings are great for 3d flying. I bought the 6exa and out grew it in 3 months. The 7c has programming similar too the 6exa so I put it in the same category. The 6 exa is for the casual flyer who will just be cruising around doing ovals and simple aerobatics. If you intend to progress eventually to bigger or more sophisticated aircraft go the extra distance and buy a radio that will satisfy your current and future needs. also the built in timers, tuneable transmitter modules and the ability to program which functions get passed along to a buddy box when you use the 9c as a master are great additional features. In my opinion of futaba radios the 4yf are the vw bugs the 6exa and 7c are yugos. the 9c is a firebird, the 9z a transam, and the 14mz is the lamborgini.

LOL, ok ok Im going to be nice.

Facts,
You can in fact fly any 6 channel plane on a 6exa if you use Y harnesses. Its not as good as match boxes or using a power box to direct power to each servo individually but it works.

The review above is real good, but the 9C can and will take you all the way to the TOC if you want to go there... It has virtually unlimited functionality. For $400 it will do anything that a top notch radio will do... There are a LOT of top WINNING competitive pilots that exclusively use the 9C and its JR Equivalent the 8103.

"Top Notch Radios"- Until last year the top Transmitters were the Futaba 9ZWC2 and the JR 10X. The only big difference between these and the 9C is conditional programming.. Im not going to confuse you with what that is because beginners and sport flyers dont need it.

In 2005 Futaba came out with a new evolution in Transmitters. The 14MZ. This is a transmitter that operates at 2048 resolution (As opposed to 1024). This in a nutshell means that from 140 endpoint to 140 endpoint you have 2048 little seamless steps, that makes your sticks handle more smoothly and control more precise,,, a beginner pilot wont be able to tell nor will most general RC pilots. It also functions in a "windows format" and looks pretty much just like your home PC screen. It has a touchscreen, plays MP3's, talks to you, wont allow itslef to transmit if someone is already on its frequency( WOW [8D] ) and does about 100 other little things that a beginner doesnt need. Depending on how fast the individual learns and how skills progress a radio like this may be useful in a couple of years though. You dont see too many competitive pilots using it unless they are sponsored, or retired and single due to the $2000 price tag. I have flown with one and they are COOL but they are pure luxury over function. I would like to have one just for the gadget factor and the frequency protection functions.


Back to the original quote
Respectfully, This could not be further from the truth...
A "good" pilot knows how to setup an airplane so that he does not have to fly around airframe deficiencies. A truly good pilot knows when he has done all that he can do to mechanically correct those deficiencies and then he smartly uses necessary mixing to remove the inherent bad tendencies of a given airframe design. To fly with coupling and claim to be a better pilot for it is just plain silly.

I repeat an analogy I have used before to put this into perspective. If the front end of your car was out of line to the point that it crabbed sideways down the road and when you put your foot on the accelerator the car pulled hard to the left would you...????
A. Learn to drive the car in this condition and then boast to all of your friends about how great of a driver you areand consider yourself a "better driver" for it?
B. Get the car fixed so that for all practical purposes you can momentarily your hands off of the steering wheel and it continues to go straight. And when you accelerate or put on the brakes the car still continues to track straight?

hmmmmm... let me think.


Humbly speaking but to make the point, I can fly without mixing and correct for bad tendencies all day long. There isnt an airplane that can be flown that I cannot fly. Im no Mark Leseburg but I can hold my own. Heck, I can fly a stock U CAN DO 60 on knife edge for an entire flight. If you know how badly a U CAN DO couples then you can understand how difficult this is... BUT I also know how to fix the plane so that it does not couple, and how to mix out what I cannot fix mechanically. After its fixed I can still fly it in knife edge for an entire flight or a gallon or a case of fuel other than taking off and landing, If I had wheels on the wingtips and stabs I could land it that way, but Im not going to becuase Im a good enough pilot to know how to fix it.

My point is for you new pilots, do not buy into the old scholl philosophy that real pilots can fly around bad setup or design... Take the time to learn how to identify and repair setup problems and then learn how to tune up your plane so that it flies stright and true.. If an old schooler starts ragging on you about using mixes to offset defiencies, ask him if he puts right thrust in his engine or uses trim to get the plane to fly hands off.. This is mechanical mixing. If the real pilot philosophy holds water then ask them to take all of the trim out, remove the right thrust and THEN fly the plane.. When they tell you hopw ignorant you are for suggesting that,,, they have just made your point[8D]

3d flying requires a lot of electronic mixing. By this I mean the use of dual rates and expo. It is very hard to land the aircraft when your planes has full 40 degree deflections up and down without being able to either reduce the amount of throw or to soften the throws up around the center of the sticks. I also like to adjust the throttle curve to get more linear performace on the stick.

Hi,

I see there are a lot of people who have posted on this topic so I will just add my $0.02 worth and ask a question that I hope someone can help with. I bought a T6XA about 4 years ago as my first computer radio, (getting back into the sport / hobby after an absence of far too long. The radio is fantastic, reliable and glitch free and works a dream, I have 5 planes now, um sorry 7 (4 gliders) 11, plus 5 wings 2 fuses, um.... I have an assortment of aircraft in various stages of construction and reconstruction (part of the fun I suppose) Anyway, I bought the radio because I like Futaba, have had 3 in the past 2, 2 channel and on of the first 4 channel FM sets in the country in 1980, a great radio I still use occasionally. I bought the computer set because I wanted something more than just 4 channels (functions).

So I'm now trying to programme a 40 sized ARF 330L Extra with all the best features of the radio and I've hit a snag, I have had to reverse the aileron and throttle sticks to take the unit from Mode 1 (which I learned to fly on 20 years ago) and change it to Mode 2 because that's all that anyone at the club I joined could teach, so I'm now a Mode 2 convert but the radio was supplied mode 1, I thought it would be easy just move the ratchet from right to left and plug the correct servo into the correct output on the reciever, this worked fine for 4 functions but now I want to mix ailerons with elevator and have the flaps work (I'm putting an OS61 into the plane to give it some real verticle performance, plus beefed up the airframe and wings to take the extra power). the problem is the ailerons run fully down through their range of travel then recover to the point where I have the stick set, (i.e. if I apply 1/2 left aileron the left aileron goes up1/2 way, but the right goes fully down then recovers to the 1/2 way point) the mixing for the elevator and ailerons for (crow function - up aileron -paired with down elevator and airbrake - down ailerons with up elevator, mixed with elevator works well). I really don't want to use a 'Y' lead and loose the functionality of the drooping ailerons to slow the landing speed of the plane as the 61 has added a bit of weight to the nose and I'd like to be able to slow the plane down a bit to land- If I need to.

Any suggestions would be greatly appreciated.

Thanks in advance,

I will keep experimenting with the expo and throws and mixing to see if I can cure this 'glitch'.