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Old Aug 20, 2004, 08:32 PM
Crash Dummy!!!
bhenry's Avatar
Dallas Love, Texas, United States
Joined Jun 2004
327 Posts
SLOW Stick GWS Receiver problem - HELP!!

I took my new slow stick out for its maiden flight.
The receiver was acting up really bad.
Motor was sputtering and servos were going crazy.
I flew the maiden flight and brought it back in. Worked on it some more and
sent it back out. It still was sputtering and kept it going for a bit.

The plane parts are all new. The transmitter is the same one I use on my Tiger Moth.

GWS Receiver R6N
Great Plaines C-10 Micro Speed control with BEC
GWS Servos.

I put in my other GWS Receiver R4P and it's not much better.

If I tough the antenna to the fuselage the plane will go haywire. shacking and sputtering.

I tried pulling the receiver off the fuselage as well as the antenna but it only helps a little.
I was trying this in my backyard with the Transmitter antenna both extended and collapsed.

I wouldn't think it's the motor or transmitter that's causing it.

Has anyone else had problems using the GWS Receiver with the Slow Stick?

I saw a post from 2003 but not much recently.

Thanks for your help.
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Old Aug 20, 2004, 08:44 PM
but it's a nice obsession
jgmtens's Avatar
Sandy, Utah
Joined Apr 2003
1,049 Posts
We use a GWS pico on our Slow Stick and it does just fine. Try routing the antenna out to the wing tip and move the receiver out under the wing away from the servos and ESC.
Make sure your crystal is in all the way secure.
We did have a receiver recently that acted that way and it turned out to be a bad antenna/receiver connection.
Jon
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Old Aug 20, 2004, 09:15 PM
Master ReKitter
uglyplane's Avatar
San Diego,Ca, USA
Joined Aug 2000
2,756 Posts
The problem is, it's a GWS. I have a virtually new one that is unusable, due to glitching. I won't use them in any thingt I value. Bite the bullet and go Berg (the best) or Hitec.
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Old Aug 20, 2004, 10:30 PM
Crash Dummy!!!
bhenry's Avatar
Dallas Love, Texas, United States
Joined Jun 2004
327 Posts
I moved the receiver to the wing like the picture and ran the antennae down the wing. I don't want to do it but....

I tested it in my front yard and it seems to operate better.
I walked a few houses away and didn't hear any fluctuation in the motor so maybe it will work.

I paid $26 from HobbytownUsa.
Maybe I should see what else they have that might work but I hate paying to much.

Thanks for the help.
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Old Aug 21, 2004, 12:39 AM
Silent Flight
daveWCO's Avatar
Tucson, AZ USA
Joined Oct 2002
3,946 Posts
Quote:
Originally Posted by uglyplane
The problem is, it's a GWS. I have a virtually new one that is unusable, due to glitching. I won't use them in any thingt I value. Bite the bullet and go Berg (the best) or Hitec.
Indeed! What UP said! If you go with Hitec, beware of the Feather.

daveWCO
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Old Aug 21, 2004, 12:49 AM
easily confused
mu2freighter's Avatar
Nashville Metro, Tennessee, United States
Joined Sep 2003
2,183 Posts
Quote:
Originally Posted by uglyplane
The problem is, it's a GWS. I have a virtually new one that is unusable, due to glitching. I won't use them in any thingt I value. Bite the bullet and go Berg (the best) or Hitec.
I myself have had no problems with my GWS Pico, used now in 2 planes. I think it makes a big difference whether there's lots of RF interference in your area. Also, after reading that its base loading coil possibly helps reject interference, I put a little slowflyer Litenna (about 6-8") on mine. Zero problems, and no ugly trailing antenna. BTW, don't just make sure the crystal is pushed in and secured...I taped the thing with a wrap of 1/4" width masking tape to be sure it can't possibly come loose...that is indeed a GWS shortcoming. Absurdly simple fix though.

I've had both planes out to almost uncomfortably far distances where they were just specks, with never the slightest loss of control.

No argument, the Berg is a superior piece of avionics, but for the little stuff I'm quite happy with the Pico.

Glenn
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Old Aug 21, 2004, 01:08 AM
Ack
Registered User
Ack's Avatar
Independence, MO
Joined Aug 2004
106 Posts
Quote:
Originally Posted by bhenry
I took my new slow stick out for its maiden flight.
The receiver was acting up really bad. Motor was sputtering and servos were going crazy. I flew the maiden flight and brought it back in. Worked on it some more and sent it back out. It still was sputtering and kept it going for a bit.
Curious!

I purchased a complete SlowStick off ebay (something I don't think I'll do again...)

GWS 4N receiver
2 GWS Mini std servos
ICS 100 ESC

When I finally powered it up, I turned on the receiver and the servos started to twitch! Once I powered up the transmitter, she calmed right down and the servos re-centered themselves.

This tends to indicate to me that some sort of stray RF is getting into the system until the transmitter's carrier overpowers it.

Maybe it's my computers? There are no major RF sources nearby...

I plan to do then maiden voyage with an RC buddy from work on Sunday. between the two of us (we are TV broadcast engineers) we might be able to unravel this mystery and report back...

Looking forward to video from on wing, I remain,

Ack
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Old Aug 21, 2004, 01:44 AM
"Fly It Like Ya Stole It"
Rugar's Avatar
San Bernardino, Ca
Joined Jul 2004
768 Posts
Quote:
Originally Posted by Ack
When I finally powered it up, I turned on the receiver and the servos started to twitch! Once I powered up the transmitter, she calmed right down and the servos re-centered themselves.
Ack

You should never put power to the RX without first turning on the TX no matter what kind of RX you have. Good way to strip out a servo before ever getting to fly it. There will always be some sort of signal that the RX will pick up.
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Old Aug 21, 2004, 06:18 AM
Registered User
Southern MA. USA
Joined Jan 2003
623 Posts
Ack,

When you plug your battery pack to the Rx it starts looking for a signal that is not there untill you turn on the TX, it then calms down because the signal that it gets is that it should be at rest ( in the neutral position ) untill you command it by moving the sticks on the TX.
It basicly is doing what a chicken does when it's head is cut off, runing around nuts waiting for input from the brain.
Always turn on the TX before plugging the battery to the plane.

BTW- The GWS 100 ESC is too small for the 300 SS, it's only rated for five amps, it will
overheat and start to break down causing glitching, going to the 300 8 ~ 15 amp will prevent this from happening.

Moe
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Old Aug 21, 2004, 06:35 AM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
I lost my Slow Stick due to the same problem a few weeks ago. On climbout
the plane went haywire and did a highspeed dive from around 80 feet alt -
lost all control. That was with the antenna going out on the left wing, and
my TX antenna was fully extended (some have lost planes this way,
forgetting to do this).

I spent $79 on a new Berg 6 channel RX and the thing is rock solid!! I love
it, well worth the money. No more glitching.
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Last edited by Hawker; Aug 21, 2004 at 06:47 AM.
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Old Aug 21, 2004, 08:20 AM
LcJ
Forever TMWT Pilot #11
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United States, LA, Monroe
Joined Mar 2003
5,583 Posts
Berg = bye bye glitches.

I have one four and four fives. They are great. It is good to be able to rule out one problem quickly. Berg does that.

LcJ
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Old Aug 21, 2004, 03:18 PM
Crash Dummy!!!
bhenry's Avatar
Dallas Love, Texas, United States
Joined Jun 2004
327 Posts
I took it to HobbyTownUSA and tried to trouble shoot the problem.
We ended up switching out the motor and I was able to walk between 50-70 feet away
with the motor running and had no glitches until I reached the range limit.
I had the antennae all the way in when testing.

I took it to the park and I still get the motor cutting just 100 feet away but not as bad as it was before.

There is still a problem but it appears that the problem may have to do
with the motor producing static in the fuselage.

I have the motor mount stuck to the metal fuselage stick using a screw.

Any suggestions on dealing with the motor interference?
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Old Aug 23, 2004, 07:08 PM
Ack
Registered User
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Independence, MO
Joined Aug 2004
106 Posts
Quote:
Originally Posted by Moe M.
BTW- The GWS 100 ESC is too small for the 300 SS, it's only rated for five amps, it will overheat and start to break down causing glitching, going to the 300 8 ~ 15 amp will prevent this from happening.

Moe
Yet another reason not to buy your first plane on ebay... That was the ESC in the package deal...

Oh well...

On the Learning curve,

Ack
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