|Modulation:||FM(PPM) & PCM1024|
|Model Mem's:||10 bace|
|Modulation:||FM(PPM) & PCM1024|
|Frequency:||Single, no module|
|Model Types:||Acro & Heli|
|Street price:||approx. $325|
|Available From:||Great Planes, Futaba's US Distributor|
Boy, opening a new radio is like opening the greatest Christmas present ever as a kid, isn't it? What fun! I just had to video it to share that special moment.
Futaba's 9C has been an amazingly popular radio. With Futaba's flexibility and reliability wrapped into an easy-to-program package with a user-friendly manual, what more could you ask for? Well, apparently some modelers must have asked for a little less power and flexibility, and a little less price tag. And Futaba has certainly delivered. Futaba's 7C isn't named 7C by coincidence; this sharp-looking radio is obviously the 9C's 'little brother'. A radio with nearly all the bang, for slightly less buck! The 7C is a big change from the 6XS, and we'll compare the 7C to both the 6X and the 9C, as well as JR's competitive offering the 6102, in detail.
But first, let's take a look at what this radio will -- and won't -- do. The 7C is a powerful entry level radio -- so much more powerful than Futaba's last 7 channel, the super 7, at a far lesser price tag than that incredibly popular radio had not so many years ago. The 7C supports powered airplanes and 6 different head types for helicopters, but does not offer glider-specific programming. (However, most glider functions are overlapped in the aircraft programming, or can be recreated using the built in mixes.) Like the super 7, it doesn't have a CAMPac or any other way to store extra models or to copy models from one radio to another.
In airplane programming, the radio supports v-tails and elevon -- even special programming to support 3-channel v-tail models! It supports flaperon and aileron differential, including using a 5-channel receiver, and flap trim with down travel only!
The 7C's big weakness in airplane programming is that it does NOT support twin elevator or rudder servos in any manner. Programmable mixes that don't include link or trim make twin elevator or rudder servos impossible to do properly or safely, except with a y-harness or servo synchronizer. (If you use a mix for 2 elevator servos and use the elevator trim, only the servo in channel 2 is moved; the 2nd elevator would not be trimmed, resulting in roll every time you give elevator. For rudder it would be even worse, as the 2 servos would be fighting each other to move a single rudder.)
In helicopter programming, the 7C offers fantastic support for more CCPM helicopter head types. As it is only 7 channel, the 4-servo SWH4 head type is not supported. There are 2 idle-ups, with separate throttle and pitch curves. Revo is VERY limited and almost useless in this radio as you cannot have a heading-hold and a non-heading-hold condition; however, revo is rapidly coming to an end as more and more pilots go to strictly heading-hold flight.
The 7Cs big weakness in helicopter programming is that it has just one knob so the user has to switch back and forth in the programming to use hovering pitch and hovering throttle.
All-in-all, this is a VERY powerful radio for hardly more than the cost of a simple 4-channel!
An overview of the 2 menus -- 4 basic pages and 2 advanced pages -- available to an H1 (non-CCPM) heli setup. Of course, different heli head types and the acro (airplane) model type, offer some different functions in the menus.
The 7C transmitter can be purchased in a variety of configurations. This particular radio is an "A", meaning that the throttle has a ratchet and the trainer switch is on the left hand, with the 3 position switch on the right. Both A and H transmitters have full programming to fly both model types. The "P" in its name means it is packaged with an R138DP PCM receiver. This particular 7CAP package includes a 600mAh transmitter pack, a 1000mAh receiver pack, four S3151 digital servos(!), and the basic Futaba radio package items such as a neck strap, charger, etc.
Standing side-by-side, the 2 radios certainly look a lot alike! Their lines and shapes are complimentary, with the 7C sporting a more silver finish than the 9C's unique champaign coloration. Those wanting the 9Cs ease of use will be thrilled to see the same button and dial setup!
The 7C keeps many of its big brother's great new features, such as:
The 7C offers an impressive array of helicopter functions inherited from its big brother, including:
The 7C maintains a huge list of airplane functions from its big brother, including:
Here are some reasons you might still choose the 9C:
The 7C is a significant step forward beyond the 6XS. The areas of progress are extensive; the most significant, undoubtedly, is ease of use and consistency to the higher end radios. With the creation of the 7C, the 9C's language, layout, keys, and easy-to-use dial have all made it to a lower-end computer radio.
Some of the benefits over 6X:
Specific to acro:
Specific to heli:
The 6102 is JR's newest offering in this early-intermediate computer radio market, and, like the 7C, has a lot to offer users. As the list below shows, each user will need to decide for him/herself which features best fit his/her needs. Note that both radios are surprisingly powerful for their price tags. Both have digital trims, throttle cut function and subtrim, built-in elevator-to-flap,flap-to-elevator and ail-to-rudder mixes and 5-point throttle and pitch curves.
Pluses for 7C:
Pluses for 6102:
I could describe doing a programming setup, but video makes it so much easier to see just how the radio works, and how user friendly it is. So here are 3 very common examples:
Futaba has a definite winner in the new 7C. It well surpasses the 6X Super, and even picks up on some asked-for-features over the 9C. It provides the intermediate pilot with far more flexibility than its predecessors, providing those pilots with many of the exceptional features -- and a continuity of terms, layout and functions -- of its bigger brother, the 9C, with a significantly lesser price tag. Most significant, the 7C is a very usable entry-to-mid-level helicopter radio, whereas the 6X was terribly lacking in that area. Unfortunately, the radio has one significant hole in its acro programming -- the lack of even one mix with trim capability. Without this ability to set up separate rudder or elevator servos, a portion of modelers buying this radio will be quickly finding themselves wanting a 9C.
|Apr 08, 2004, 11:39 AM|
Joined Aug 2002
I had decided that the only way to use "Flap Trim" was to start at the center knob setting. I am amazed and thankful as to how easy it is to start the trim at 0 degrees rotation.
I guess I am missing things in the manual. Simple things like the rotation of the trim knob dictates which of the 2 percent displays is adjusted. (I figured that one out accidentally.) There are other areas that seem to assume that I know what to do and I have had to figure them out via trial and error. Is it me or the manual?
Thanks for the informative video AnnMarie!
How 'bout (Mommy can I have a cookie? Mommy can I have two?) some more video's. Like some of the P-Mix set ups.
Bewitched, Bothered and Bewildered.
|Apr 11, 2004, 12:57 PM|
Is there a way I can do custom mixes with the 7C?I am in the market for a radio to fly 3D with and Im going to need custom mixing (Like aileron Rudder and elevator to cancel coupling) in some planes.How does this radio par with the HiTec Eclipse 7?
Thank you !!
|Apr 11, 2004, 02:09 PM|
Joined Aug 2002
Try going to this place in the forum.
R/C Groups Discussion
General Aircraft Topics
or http://www.futaba-rc.com/manuals/index.html#7c and download the manual
I think this transmitter will do it for you
|Apr 11, 2004, 10:43 PM|
Joined Jul 2003
9C synthesized module not available currently.
This statement in the review is not correct, at least not yet.
"Module frequency control -- allows easily changing channel and even band. The 9C now even has a synthesized module for it to use any 72MHz frequency with the turn of a dial."
The synthesized module, while originally promised for February, is not yet available. Lastest post by Bax in the Futaba support thread on RCU says "mid to late summer." But some people are beginning to wonder if its just vaporware.
|Apr 12, 2004, 08:46 AM|
Jim, I'm quite sure it isnt vapor ware -- at least not intentional vapor ware. Futaba is usually VERY careful about not announcing something until they're sure that it is coming.
flyinghigh -- the radio has several free mixes, BUT you cannot do link or trim, so if you need link or trim, this radio wont do the job, you need a 9C.
ROY -- I wrote the 9C book when i was at futaba that this manual works from. I tried hard not to make assumptions, but it is really challenging to do -- to cover every level of users' skill set. Things like the glossary/index in the back is unheard of in most radio manuals...and an effort to help newer users like you.
Please see the example in yoru manual on page 44. Work through it. See where it turns the dial to switch the sides? that's intended to help you see how to do it. The examples are meant to show the most needed features of a function, hope that helps you find your way.
Also, i wrote an aftermarket book for the 9C, and am working one up for the 7C. both books have all royalties going to support my nonprofit horse charity. I hope to see the 7C in print by late summer. hopefully you'll find it even more helpful/useful.
|Apr 12, 2004, 11:30 AM|
Joined Aug 2002
Yep, I seemed to have missed that it would change the top or the bottom percentage. Of course, in retrospect, I see that is what it has to do.
I taught (years ago) Graphic Arts and Photography in public schools. One of the "how to teach" classes I attended was in presenting a procedure. It centered on eliminating assumptions. Really, really hard to do. I chose, "How to replace the ink refill in a ball-point pen". I did pretty good except that I specified turning the barrel (yes, I defined what the barrel was) clockwise. I failed to explain what clockwise was.
Even worse was the teacher who got, "How to start a car engine". Seems he failed to explain how to open the car door so you could get in the car and continue the procedure.
The above is echoing your comment about the difficulty of avoiding assumption. Very hard to do. "Assuming" that the reader has understood the preceding information (or even read it) make manual writing even tougher. Yes, I was a tech writer for a number of years.
I was aware you had written the 9C and had read (well looked at) that manual when it first became available on Futaba's site. I was impressed with the format and use of symbols. Nay, I was jealous. The 7C is a good adaptation of the 9C. The manual for the TX6 (my first computer radio) left much to be desired.
Oh! For the record - I am not a "newer user". I flew UC and FF models before there was radio control. I witnessed one of Dr. Goods early flights and actually handed him a screwdriver. I flew Super Aerotrol single channel rubber band powered escapement. I have had Orbit, Kraft, Pro-Line, Ace, Royal and Cirrus transmitters of yesteryear. Modern era equipment has been Hitec and Futaba systems used with FMA, Berg, Cirrus and others.
Keep up the good work! E-Zone seems to be moving at a much faster pace since you came aboard. Seems to be many new articles up.
Where will your aftermarket manual for 7C be found?
|Apr 12, 2004, 11:34 AM|
Hi, Roy! there's those danged assumptions again. my apologies if my 'newer user' comment offended you. :-(
the new 7c book will be available from traplet, just as the new 9C book has JUST become orderable through them.
Thanks again! So glad you liked what you saw! You can see a little of the new 9C book at my rescue's website
Mrs. AnnMarie Cross
|Apr 12, 2004, 11:48 AM|
Mike, of course!
1) Link...link says "ok now that i've obeyed this mix, lets look at the SLAVE of the mix and see if there is another mix with that control as the MASTER and obey (or not obey) taht mix.
if the mix is
and if you have another mix that is rudder-to-2nd-rudder-servo, in teh aileron-to-rudder mix you MUST turn link ON or else the command will move only the servo plugged into channel 4 and NOT the 2nd servo that was mixed to operate the rudder on your giant scale whooohah or twin-ruddered-thingamajig.
2) trim -- trim says "when this mix is on, if the master servo's trim is moved, then the slave servo should also move." Example -- elevator-to-2nd-elevator-servo mix....you MUST have trim on, otherwise the 1st servo moves with trim, the 2nd does not, and now your model is rolling because only one elevator servo trimmed. This is 7Cs biggest weakness is not offering trim in the mixing.
Lots of mixes you DO NOT want trim on. Example? elevator-to-flap. Just because i used the trim to level my model out, i don't want it to give flap in response to that trim!
Mrs. AnnMarie Cross
|Apr 12, 2004, 06:35 PM|
Thank You for explaining that to me Ann , I had no Idea computer Radios were so High Tech .I basically need to just take care of the coupling on the 3D planes ,Its been kinda hard to do it manually off my Flash5X .
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