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Radio - Servo - Gyro - Gov - Batt > Airtronics Stylus Questions
 
 
I3DM
rrProfessor
Location: Israel

Yes, nearly any digital servos can have power issues with the Stylus due to its eCCPM servo grouping, causing all 3 servos to move together on the same signal.

anyway, one would have to use the Fromeco regulator for it to work well. i was the one who told Ron Henry about this.


Team pilot for Radix, Helidirect, Logictech, ThunderPower, Fromeco, Gaui
www.liorzahavi.com
09-14-2005 Over year old.
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King Cobra
Veteran
Location: Virginia. USA.

Lior,
Please explain :
Quote 
Yes, nearly any digital servos can have power issues with the Stylus due to its eCCPM servo grouping, causing all 3 servos to move together on the same signal.

I tried to search your post but it feel like finding Waldo at the Great Wall of China.
I have not having any power issue with 94758Z or 9252, however I do notice the 9252 speed are faster but the 758's endurance is hard to beat because they hold up in a crash extremely well. Booth are running the same power setup with the Duralite 4000 and regulator. I found the batteries pack on 9252's start to brown out for a blink of an eye occasionally after two years, One would get tired of changing the gear on 9252 every time gravity won.
I haven't experience any issues with the Stylus eCCPM causing 3 servos to move on the same signal like you said even with Hitech servos such as 5645, 5625,....

C.T
09-14-2005 Over year old.
HOMEPAGE  
 
 
King Cobra
Veteran
Location: Virginia. USA.

Quote 
with the 9255's, and the Stylus, should i use the airtronics pcm receivers? can you use fut recv's with airtronics tx and the like?

The full benifit of the Stylus is their pcm receiver, it does not work with any other brand of pcm rx but work fine with any FM rx.

C.T
09-14-2005 Over year old.
HOMEPAGE  
 
 
King Cobra
Veteran
Location: Virginia. USA.

Quote 
I found the batteries pack on 9252's start to brown out for a blink of an eye occasionally after two years

This could be from the Stratus carbon frame with high frequency vibration ( you got to balance that fan after the mod for the new harder dampener ) I had seeing the old Duralite regulator ( not the heavy duty switch ) causing brown out with certain air frame such as the Caliber, or cnc & carbon frame. But mine regulator is fine it's the batteries that fail the testing. ( 2 years old )

C.T
09-14-2005 Over year old.
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I3DM
rrProfessor
Location: Israel

King Cobra, are you using the Stylus on an eCCPM machine ? the Stylus has all 3 eCCPM servos grouped, causing a huge drain (for a mili second) once you move all of them together, cutting off the Duralite regulator for an instant.
here is my thread:
http://www.runryder.com/helicopter/t173572p1/

Team pilot for Radix, Helidirect, Logictech, ThunderPower, Fromeco, Gaui
www.liorzahavi.com
09-14-2005 Over year old.
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JKos
Elite Veteran
Location: City of California in the state of Maryland

I would like to clarify something about the Stylus versus a few other radios. If you look in my thread on the eCCPM behaviour of various radios at http://runryder.com/helicopter/t171302p1/ you will see plots of how the various radio systems' three swash channels behave with collective changes.

What I found when monitoring the voltage at the receiver's power bus while using a 4-cell NiCd battery is that there was almost no discernable or measurable difference between how the voltage profile looked between a Stylus with PCM rx and a Futaba 9C with an R149DP while driving three 9252 servos.

Given the similarities in actual current demand, it is actually a difference in the receivers which cause the short hiccups in servo movement. Bottom line is that both Futaba and JR receivers continue to operate at a much lower voltage than the Airtronics receiver is willing to operate. The Airtronics rx goes into a fail-safe mode while the others keep on going.

This is THE aspect of using an Airtronics setup that concerns me. If Airtronics could come out with a new receiver that behaves more like Futaba's and JR's receivers, we wouldn't be talking about this issue.

Given the use of a regulated setup with a suitable regulator (such as the Fromeco units), this should not be an issue. The benefits of the Stylus far outweigh this issue in my mind.

- John

MSH Protos
09-14-2005 Over year old.
 
 
King Cobra
Veteran
Location: Virginia. USA.

Very interesting discussion indeed, I haven't have a brown out or Rx freezing as I3DM experience. I found the hiccup from one battery pack when using the Duralite tester after charging and under 1amps load, the pack will read 7.6v then drop down to 7.3v and occasionally 4v or 0v for a millisecond.
Quote 
at a much lower voltage than the Airtronics receiver is willing to operate.
I haven't taking any chance of getting so close to this. With the 4000 amps on a MCCPM one would go a s far as 12 flights, but I fly eCCPM I am always top it off after maximum of 5 flights, I like a fresh pack.
I don't run Gv on my 4x 758's to save a little more amps, that's difference from I3DM. One I see with the GV1 on the 9252's doesn't have any freezing either. And It had been like that for years.
Go figure !

C.T
09-14-2005 Over year old.
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spritefiend
Key Veteran
Location: Camarillo, CA

Well. I called Airtronics today, got all the parts numbers and some other general information i thought up. I do believe im going to make the switch.

My current plan is leave my "trainer" sceadu 50 on its futaba system, thats running and running well, and switch over my 2nd sceadu, and my freya to the stylus and give it a go! Get adjusted, transitioned whatever and when i feel comfortable enough go over 100%

From what everyone is saying, and what i look forward to the most is the difference in flying characteristics with the SWM, but im curious will it seem different as well for an HPM helicopter?

Both of my Sceadu's are SWM, and the Freya is HPM which is why i ask. With these 3 helicopters i plan on leaving them all running with the current futaba electronics(minus the receiver of course), and trying ATX on one of my future Avant's.
09-15-2005 Over year old.
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white chocolate
Key Veteran
Location: Baltimore, Md.

You will notice the difference with HPM. I definatly did. I havnt used the ccpm upgrades yet but Im thinkin bout it.
09-16-2005 Over year old.
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Ray Nemovi
Veteran
Location: SAN DIEGO CA

I' m very picky on battery system and I only use what has been tested and work. I run 3 9478 servos on cyclic and a good analog servo to save battery power since you dont need a fast servo for throttle. I was running the 611 on one of my machines with 5.3v duralite lipo and reg.
for me, it is more than enough power. I also run the rev max from Model Avionics as well. I feel more response when get on the collective.

Ray N.
09-16-2005 Over year old.
 
 
spritefiend
Key Veteran
Location: Camarillo, CA

just got it all in today!!! battery isnt charged =(( hehe so its on the wall charger now.

whats the little battery that came with the 50model memory card for??

yeayea read the directions and information, that will come soon enough.

edit: actually HAD I read the FIRST PAGE of directions, id see its installed in the card as thats what holds its memory. NICE
09-23-2005 Over year old.
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spritefiend
Key Veteran
Location: Camarillo, CA

is it normal for the tx module to get hot?
10-29-2005 Over year old.
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Micro-Maniac
Elite Veteran
Location: Pasco,Washington Formerly: Captain Chaos

I don't know, I've never felt it. Was the antenna extended when it got hot?
10-29-2005 Over year old.
 
 
JKos
Elite Veteran
Location: City of California in the state of Maryland

> is it normal for the tx module to get hot?

Warm, yes. Hot, no.

- John

MSH Protos
10-29-2005 Over year old.
 
 
I3DM
rrProfessor
Location: Israel

Warm is normal

Team pilot for Radix, Helidirect, Logictech, ThunderPower, Fromeco, Gaui
www.liorzahavi.com
10-29-2005 Over year old.
HOMEPAGE  
 
 
spritefiend
Key Veteran
Location: Camarillo, CA

it only got to the point i would call hot, once, and that was with the antenna off of it.

i noticed it getting warm otherwise, and just making sure thanks for the info.
11-02-2005 Over year old.
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I3DM
rrProfessor
Location: Israel

spritefiend, do NOT operate the Tx transmitting without the antenna !!

Team pilot for Radix, Helidirect, Logictech, ThunderPower, Fromeco, Gaui
www.liorzahavi.com
11-02-2005 Over year old.
HOMEPAGE  
 
 
ZvikaF
Heliman
Location: Natanya, Israel

one of the nice features in the stylus is the ability to operate without RF transmittion, just use the small "display on" knob (without the primary power switch) in order to program the transmitter.
11-05-2005 Over year old.
 
 
spritefiend
Key Veteran
Location: Camarillo, CA

Got my first flights in today with it!! On my std. sceadu 50 ccpm, 9402s across, 9202 on thr, 502 & 9253.

the ccpm mixing is phenominal. i was having some problems with that on the 8u; totally gone. the responses are quite a bit faster, it was surprising the way it reacted when hitting full collective and the cyclic was smooth as silk.

my instructor and i at first were having some problems setting up the gov. up, found a post here and got that sorted. even though i set the switches up the way i had them on my 8u they still felt a little weird, and overall the radio felt strange in the hands. i set hovering at 3/4 stick and the stick movement between that and 100% is very small.

another thing i liked a lot were the pitch and throttle curves, i only used the low, high and middle points and left the other two inh for a nice linear curve, and the way you can change what mode your programming between the different points in the curve was nice.

about the only thing that was unimpressive was the tx battery, it goes dry fairly fast, and im damn glad i ordered a 1300mah duralite for it!

overall im really impressed with it, and once i get better with the programming, and used to the feel of the radio i think its gonna be t!ts.
11-11-2005 Over year old.
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white chocolate
Key Veteran
Location: Baltimore, Md.

How much was the duralite? And could someone please asnswer Fortins quesiton. Im curious too!
11-11-2005 Over year old.
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