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Model Forum / Radio Controlled / Air Models / May 2004



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Radio Buying Advice Needed

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peter walker - 19 May 2004 02:38 GMT
I have finally been able to save some money up and am looking at buying a
Radio and ARF kit. Looking at Radios on www.towerhobbies.com I see that they
have FM and PCM radios. I want to get at least a 7 channel radio. What would
be the best radio for the price in that area and which would be the best
overall radio?

Also, is there a current newsgroup FAQ posted anywhere?

Peter
jeboba - 19 May 2004 12:35 GMT
As a newbie, don't worry about getting a PCM radio, just FM. I would
recommend you go ahead and buy a Futaba 7CAP or 9 CAP. You will have all the
radio capacity you will need for a long time. It's often cheaper to go ahead
and spend a bit more in the beginning. If you buy a cheap 4 channel radio, a
year or so later you will want to upgrade and your little 4 channel won't be
worth much other to use it as a buddy box. Definitely get a computer radio.
The ability to make adjustments at the transmitter and add mixing features
is great!

Good luck and have fun!

> I have finally been able to save some money up and am looking at buying a
> Radio and ARF kit. Looking at Radios on www.towerhobbies.com I see that they
[quoted text clipped - 5 lines]
>
> Peter
Mark Hansen - 19 May 2004 14:10 GMT
> As a newbie, don't worry about getting a PCM radio, just FM. I would
> recommend you go ahead and buy a Futaba 7CAP or 9 CAP.

But, of course, the 7CAP and 9CAP _are_ PCM radios - that's what the 'P'
stands for. The 7CAF and 9CAF are the 'FM' versions of these radios.

FYI.

>                                                         You will have all the
> radio capacity you will need for a long time. It's often cheaper to go ahead
[quoted text clipped - 17 lines]
>>
>> Peter
Doug McLaren - 19 May 2004 18:47 GMT
| > As a newbie, don't worry about getting a PCM radio, just FM. I would
| > recommend you go ahead and buy a Futaba 7CAP or 9 CAP.
|
| But, of course, the 7CAP and 9CAP _are_ PCM radios - that's what the 'P'
| stands for. The 7CAF and 9CAF are the 'FM' versions of these radios.

Good point.  But to be more precise, the Futaba 7C and 9C can both
work with FM or PCM receivers.  But if you buy a package, the 7CAP
package comes with a PCM receiver and the 7CAF package comes with an
FM receiver (and costs about $100 less.)

Signature

Doug McLaren, dougmc@frenzy.com
Why do hot dogs buns come in packages of 8 but hot dogs come in packages of 10?
Twinkies come in packages of 10.

jeboba - 20 May 2004 05:43 GMT
They are BOTH....pcm and fm. You switch it in the transmitter. Just forget
the P and F in the designation. They don't mean squat. The only thing that
makes the 9C a PCM radio is a PCM receiver. I use my 9C with both PCM and FM
receivers. Simple!

> > As a newbie, don't worry about getting a PCM radio, just FM. I would
> > recommend you go ahead and buy a Futaba 7CAP or 9 CAP.
[quoted text clipped - 25 lines]
> >>
> >> Peter
Mark Hansen - 20 May 2004 14:43 GMT
> They are BOTH....pcm and fm. You switch it in the transmitter. Just forget
> the P and F in the designation. They don't mean squat. The only thing that
> makes the 9C a PCM radio is a PCM receiver. I use my 9C with both PCM and FM
> receivers. Simple!

Try using a 9CAF transmitter with a PCM receiver... 'taint gonna work ;-)

The 'P' versions of the transmitters can switch between PCM and PPM (FM),
The 'F' versions of the transmitters cannot do PCM. They are PPM (FM) only.
Doug McLaren - 20 May 2004 17:37 GMT
| Try using a 9CAF transmitter with a PCM receiver... 'taint gonna work ;-)
|
| The 'P' versions of the transmitters can switch between PCM and PPM (FM),
| The 'F' versions of the transmitters cannot do PCM. They are PPM (FM) only.

Are you *sure* about that?  i.e. you've got in your possession a 9CAF
transmitter that cannot do PCM?

In my experience, the transmitter is 9CA (or 9CH for helicopter) and
the F or P only refers to the receiver that comes with the package.

I bought a 9CAF when it first came out from Tower Hobbies.  I don't
have a PCM receiver to test with, but my transmitter does have the
option to switch to PCM mode.  Are you trying to tell me that it won't
work?

(If so, sorry, but I don't believe you.)

This is what I bought --

  http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXASY0**&P=ML

(though they did not offer a free campac with it at the time.)

It says --

  This is the Futaba 9-Channel FM aircraft radio.
  **also has PCM capabilities**

Signature

Doug McLaren, dougmc@frenzy.com
I am disrespectful to dirt.  Can you not see that I am serious!

Mark Hansen - 20 May 2004 17:48 GMT
> | Try using a 9CAF transmitter with a PCM receiver... 'taint gonna work ;-)
> |
[quoted text clipped - 3 lines]
> Are you *sure* about that?  i.e. you've got in your possession a 9CAF
> transmitter that cannot do PCM?

No, I'm not. I assumed that based on the literature I read. Not
even sure where that was now...

Sorry if that was a bad assumption.

> In my experience, the transmitter is 9CA (or 9CH for helicopter) and
> the F or P only refers to the receiver that comes with the package.
[quoted text clipped - 16 lines]
>    This is the Futaba 9-Channel FM aircraft radio.
>    **also has PCM capabilities**
tippy - 20 May 2004 23:55 GMT
(Referring to the 9C(A/H)*)
The *F TX and the *P TX are both PCM and PPM capable.
The *F and *P only designate the rcvr model that is included
with the TXs flight pack.

The F or P serves no useful purpose other than a point of confusion if
you buy the TX alone (without rcvr or flight pack).
Personally I don't see why Futaba bothers to put the extra letter on the
TX case if the TX does both.

Hope this helps.
tippy
peter walker - 21 May 2004 00:40 GMT
This is the radio that I am going to order.
http://www2.towerhobbies.com/cgi-bin/wti0001p?&W=000423732&I=LXASY030&P=K

Buying this stuff for the first time is quite intimidating and overwhelming,
especially if you don't know what your doing. I just hope that I am getting
the right stuff.

Peter
Carrell - 21 May 2004 04:21 GMT
This is the radio that I am going to order.
http://www2.towerhobbies.com/cgi-bin/wti0001p?&W=000423732&I=LXASY030&P=K

Buying this stuff for the first time is quite intimidating and overwhelming,
especially if you don't know what your doing. I just hope that I am getting
the right stuff.

Peter
============================
Based on opinions of a half dozen guys in our club (www.greenvillerc.com)
who have this exact setup, you'll love it and never regret the choice.

Carrell
Dale Craven - 21 May 2004 04:25 GMT
You will be happy with this radio.  I bought it at the beginning of this
year and have REALLY enjoyed it.  I upgraded from a 6 channel Airtonics that
I got 10 or 12 years ago.  The programmable radios sure give you many
options for setting up your planes.  Shout out if you have any questions
about programming you planes.  (I have 7 model locations used!!)
Dale

> This is the radio that I am going to order.
> http://www2.towerhobbies.com/cgi-bin/wti0001p?&W=000423732&I=LXASY030&P=K
[quoted text clipped - 4 lines]
>
> Peter
jjvb - 19 May 2004 13:57 GMT
Get a good computer radio.  You won't regret it.  I have a Hitec Eclipse
which I am completely satisfied with.  Futaba makes good radios.  Airtronics
and JR are fine also.  Hitec is coming out with a new radio soon.  The best
overall radio is impossible to tell.  Get one that has the features you need
now and expect to need in the future.  The Futaba 7 series radios seem to
have all the necessary features.  Get one of the Tower monthly flyers as
they usually have coupons that will save you a few dollars.

John VB

> I have finally been able to save some money up and am looking at buying a
> Radio and ARF kit. Looking at Radios on www.towerhobbies.com I see that they
[quoted text clipped - 5 lines]
>
> Peter
MJC - 19 May 2004 14:09 GMT
   It sounds like you just starting out so I'd recommed a complete package
like the Avistar
http://www2.towerhobbies.com/cgi-bin/wti0001p?Q=1&I=LXMU53**&P=3 that
INCLUDES a Futaba radio and engine. You get everything you need except the
fuel and basic field equipment for $269.
   For someone just getting into the hobby, it's about the cheapest and
best way to go.
   I would suggest that you go with this setup for now because, as you
progress in the hobby, you'll learn as you go and be better able to decide
(on your own) which radio system you will want for the kind of flying you
want to do. Simply stating "7 channel" doesn't help that much because beyond
the number of channels, different radios have different features that can be
important as the number of channels.
   To learn more about various radios and features available, there are
some threads about different radios on both RCGroups and RCU. One of note is
the Multiplex EVO thread in the RCGroups.com radio forum, and you'll also
run across other Futaba and JR and Hitec discussion about their radios as
well.

MJC

> I have finally been able to save some money up and am looking at buying a
> Radio and ARF kit. Looking at Radios on www.towerhobbies.com I see that they
[quoted text clipped - 5 lines]
>
> Peter
Ted Campanelli - 19 May 2004 15:08 GMT
On 5/18/2004 9:38 PM Ted shuffled out of his cave and grunted these
great (and sometimes not so great) words of knowledge:

It sounds like you are just starting out.  One thing I HIGHLY RECOMMEND
to new comers to the hobby is to join a club and get an instructor
(clubs provide instructors at no charge).  People have taught themselves
to fly, BUT, it is a steep learning curve and very frustrating (not to
mention expensive) while learning.  The first flight of someone teaching
themselves to fly is USUALLY less than 30 seconds and FREQUENTLY results
in a "rekitting" of the plane.  I would also suggest getting a
simulator.  FMS is a free D/L and pretty good.  The sim will help you by
allowing you to practice what your instructor has taught you and for
getting proper orientation on the transmitter when the plane is coming
towards you.

I would suggest staying away from the RTF (Ready To Fly) setups as
mentioned by one person.  They come pre packaged and you can  rarely
make changes to the package.

You do not need PCM.  A "regular" FM radio is fine.  Futaba, Hitec,
Airtronics and JR (among others) offer some nice 7 channel radios.
Check and see what the majority of people are using at the field you
will be flying at and get that brand.  The reason for that is, if you
have a problem or question, someone at the field should be able to
solve/answer it for you.

I would also recommend a decent ball bearing 46 engine.  Thunder Tiger,
GMS and OS FX/AX series are good engines that are very user friendly
(Stay away from the OS LA series and MDS engines).  The engine brands I
suggested are relatively inexpensive with GMS being the least expensive
(but requires more "fiddling" with), Thunder Tiger is in the middle and
the OS FX/AX as the most expensive (about $110).

There are several very good ARF trainers out there.  The SIG LT-40 is an
excellent one, as well as the Hobbico SuperStar.

The Avistar (as mentioned by one person) has some pros and cons to it.
It is a semi symmetrical airfoil rather than a flat bottom airfoil.
This airfoil and the lower dihedral (the amount the wing angles up)
provide aerobatic performance, thus delaying the amount of time before
you would want/need a second plane.  The down side to it is, it lands
noticeably faster than a flat bottom airfoil and it is not as forgiving
(self correcting) as a flat bottom airfoil.  Many people have learned on
it though.

RC Universe  http://www.rcuniverse.com/  has some excellent forums on it
and a lot of good information.  Another good site is Allan's RC links
http://homepages.ihug.co.nz/~atong/  You will find a multitude of
information there on almost every aspect of RC.

Hope this helps.

> I have finally been able to save some money up and am looking at buying a
> Radio and ARF kit. Looking at Radios on www.towerhobbies.com I see that they
[quoted text clipped - 5 lines]
>
> Peter
AAAlias - 19 May 2004 17:39 GMT
Hitec Eclipse 7. Best bang for the buck.

> I have finally been able to save some money up and am looking at buying a
> Radio and ARF kit. Looking at Radios on www.towerhobbies.com I see that they
[quoted text clipped - 5 lines]
>
> Peter
Paul in Redland - 19 May 2004 22:06 GMT
If you even think that you'll stick with the hobby, spring for a top notch
computer radio. You'll be $ ahead in the long run, and you'll have a really
nice radio from the get-go. I've been flying for a little over a year now
and would have already 'out grown' a lesser radio. I got a Futaba 9C as my
first radio, and haven't regretted spending the extra $ on it. The radio is
still more than I need, but that is better than not having 'enough' radio.
Got a Hanger 9 Ultra Stick the other day, and I'm really glad I've got the
9C radio. Can't wait to get it in the air. Anyone care to comment on the
Ultra Stick?

Paul
Dale Craven - 21 May 2004 04:36 GMT
That plane is TWO of the models programmed into my 9C.  I setup a "basic"
and "advanced" program for the same plane.  Really just to get the first
checkout flights done.  Basic setup just like your standard 4 channel
trainer. Full rates were the recommended low rates in the manual.  Flew
great with a Saito 72 up front, but I did have to cut a battery hatch in the
bottom of the fuse as far aft as I could to get the CG right.  For the
advanced program I used the sailplane program so that the "airbrake,
butterfly or, crow" would be activated inversly proportion to the throttle
when switch A is down (100% airbrake with 0% throttle)  then I programmed
20% and 40% flaps with a three position switch.  I played with full span
ailerons for a while, but that's not in my program now.  I've only been out
5 or 6 times with my Ultra Stick 40 now, but I'm loving it!!

Dale

> If you even think that you'll stick with the hobby, spring for a top notch
> computer radio. You'll be $ ahead in the long run, and you'll have a really
[quoted text clipped - 7 lines]
>
> Paul
 
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