RE: *Airtronics RD8000 2.4 GHz*

RE: *Airtronics RD8000 2.4 GHz*
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RE: *Airtronics RD8000 2.4 GHz* - 5/14/2008 9:28:42 PM

MikeGreenshields

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Joined: 3/15/2005
From: Fountain Valley, CA, USA
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When we loaded them, that one had a bad link, that's all. It's up now. There's more to come, but this at least gets us closer to having everything up!

We still have all of the Stylus advice articles Jack has written to post!

Mike

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Post #: 651

RE: *Airtronics RD8000 2.4 GHz* - 5/16/2008 2:06:52 AM

S.D.McCRAWLEY

Posts: 10
Joined: 12/29/2007
From: WINCHESTER, CA, USA
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Hello!!! This is my first attempt at posting a question so here goes. I recently purchased an Airtronics RDS 8000. Before this radio I had a Hitec Lazer 4. I usually charged the Lazer 4 with a Hobbico Quick Field Charger using a Cirrus Cycle Pro Lead Set, Hitec (S Rx, Std. Tx) No. 444750 (that's all the info from the package of leads). I called two LHS's and they both told me that I needed a different set of leads to use with my RDS 8000. They both told me that the positive and the negative connections on the TX's were reversed. One of the shops had a set of Hobbico HCAP0106 TX/RX CHARGE LEADS HITEC/AIR Z which is what they told me I needed, so I had my wife stop by on her way home from work and pick them up for me. To my surprise when I looked at the TX lead in the package it had a sticker on it that reads AIRTRONICS TX / HITEC TX and it shows the positive in the center and the negative on the outside of the plug. My first question is do both TX's have the positive in the center and the negative on the outside? And my second question is, if so, can't I just use my old set of leads (Cirrus)? Thanks!

(in reply to MikeGreenshields)

Post #: 652

RE: *Airtronics RD8000 2.4 GHz* - 5/16/2008 2:12:46 AM

RCKen

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Joined: 7/10/2002
From: Lawton, OK, USA
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Airtronics, Futaba, and Hitec all have center positive connections. The odd one out it JR which has center negative on the plug. The plug that came with the charger you purchased should work just fine charging your radio.

Ken

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(in reply to S.D.McCRAWLEY)

Post #: 653

RE: *Airtronics RD8000 2.4 GHz* - 5/16/2008 5:28:25 AM

S.D.McCRAWLEY

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From: WINCHESTER, CA, USA
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Thanks RCKen for the quick response. So just to be sure I've got it straight. What you are saying is that I should be able to use the same charging leads that I was using with my Hitec Laser 4 to charge my my Airtronics RDS8000, correct? BTW great forum everybody, especially aydin3 with the tip for setting up dual rate rudder.

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RE: *Airtronics RD8000 2.4 GHz* - 5/16/2008 5:34:43 AM

RCKen

Posts: 14740
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From: Lawton, OK, USA
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quote:

ORIGINAL: INHOGHEAVEN

Thanks RCKen for the quick response. So just to be sure I've got it straight. What you are saying is that I should be able to use the same charging leads that I was using with my Hitec Laser 4 to charge my my Airtronics RDS8000, correct? BTW great forum everybody, especially aydin3 with the tip for setting up dual rate rudder.

Yes, as long as the charging lead is center positive then you will be just fine. Stay away from JR and a center negative charging lead.

Ken

_____________________________

The take off is optional, but the landing is MANDATORY!!
AMA # 712539 www.gettingairborne.com
Moderator- Beginner''s, Sport Flying, Off-Topic, & AMA Discussions
RCU Community Moderator

(in reply to S.D.McCRAWLEY)

Post #: 655

RE: *Airtronics RD8000 2.4 GHz* - 5/16/2008 3:39:14 PM

S.D.McCRAWLEY

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Got it! Thanks again RCKen.

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RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 12:01:34 AM

KMR1

Posts: 9
Joined: 11/14/2007
From: Western, BC, CANADA
Status: offline

Not sure if I can change the thread here? No harm meant...

Has any one managed to control a negative pulse electron 6, using
ppr (PPM/R) ? My Tx is a super 6 but I 'm fairly sure the programing is the same.
I intend to have it checked with a Hitec Tx, but it will be months before I can swing by.
Thanks
Ken

(in reply to S.D.McCRAWLEY)

Post #: 657

RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 12:56:25 AM

MikeGreenshields

Posts: 168
Joined: 3/15/2005
From: Fountain Valley, CA, USA
Status: offline

This might be a question better posed to our tech support at the 800 number or emailed directly to service
service@globalhobby.net

I have flown my regular RD800072MHz with several different electron receivers with no issue. You have to get the pulse right and you have to use the Hitec dual conversion crystal in the receiver on the right frequency (not Airtronics rx xtals...)

Mike

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RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 1:29:22 AM

Oldbob

Posts: 158
Joined: 6/29/2005
From: georgetown, TX, USA
Status: online

Mike; Some of my club members with Spektrun and JR 2.4 systems are using a 4800 UF capacitor plugged into a spare channel on the receiver to eliminate the low voltage drop-out when excessive servo load is experienced. Is this an issue with the Airtronics RDS 8000? That is, if a low voltage spike hits the receiver will the receiver shut off for several seconds? Should I install a 4800 uf capacitor to be on the safe side?

Bob

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Post #: 659

RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 2:05:19 AM

metalmetal67

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From: West springfield, MA, USA
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Spektrum AR series receivers cut out at something like 3.8 volts. The most recent Airtronics 2.4 receivers operate at 1.8 volts and above, lock out shouldn"t be an issue. I have seen those capacitors in use by Spektrum users at my field. I smile and walk away knowing I sold my Spektrum unit for this very reason and I now run an RDS 8000.

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RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 2:10:04 AM

bigedmustafa

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From: Omaha, NE, USA
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Mike will certainly answer this in good time, but if you read this thread you will find that the Airtronics 2.4Ghz receiver was engineered to operate at very low voltages without any kind of "rebooting" issues that the Spektrum/JR systems have experienced. You will also notice that, after 26 pages of detailed feedback, no RDS8000 users have reported any low voltage drop-outs, binding problems, or lockouts during flying.

You don't need to worry about adding a capacitor to your Airtronics 2.4Ghz receiver. Futaba and Airtronics spread spectrum radio systems don't suffer from this problem.

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RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 4:58:41 AM

MikeGreenshields

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From: Fountain Valley, CA, USA
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The RDS8000 receiver is designed to operate at 2 volts which is much lower than servos will operate. We are having no reports about brown out resets, etc... And we have pilots flying the radio in 40% stuff

Note that all 2.4GHz equipment has a computer which means brown outs, voltage spikes, etc. as well as turning the equipment on/off very quickly for no reason is not good for the computer. No different than you're home-computer. Will it run well on 80V? no... Is it a good idea to turn it on/off while it is booting up? no.. Well, all computers don't like this stuff. So, constant voltage is always better overall.
Why did I say all that stuff? Not because I think you need the giant capacitor plugged into the receiver. I say that because it is important that your battery be up to the task!

A 400oz/in super high torque servo draws 5 amps all on its own to move that 400 oz/in! Even a 100 oz/in servo when it's really working can draw an amp! So, make sure your battery voltage and amperage can handle the current your servos can draw!

It's really all about having a battery that is up to the task! Think of it this way.. Our receiver can stay booted, even at 2 volts! But your servos are going to stall if the voltage drops below give/take 3 volts!! So, using a good battery ensures that your servos have the power they need to operate the way you want them to.

Mike

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RE: *Airtronics RD8000 2.4 GHz* - 5/17/2008 2:32:44 PM

Oldbob

Posts: 158
Joined: 6/29/2005
From: georgetown, TX, USA
Status: online

Thanks for the feedback and answer to my Q. I have been following this thread and did not remember the low voltage discussion. At my age memory is hard to come by. My RDS 8000 is working great, and yes I do have a good fully charged 1200mah battery in the plane and the supplied Tx battery will run the radio for 2.5+ Hrs. before the low voltage alarm sounds. I may install a 2100mah in the Tx, but at this point 2.5 Hrs. is more than I can use during a single flying session.

Bob

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Post #: 663

RE: *Airtronics RD8000 2.4 GHz* - 5/18/2008 12:44:06 AM

S.D.McCRAWLEY

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Joined: 12/29/2007
From: WINCHESTER, CA, USA
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I'm having a problem with my LCD screen "blacking out". When I'm out in the sun flying, within 5 minutes my screen "blacks out" and becomes unreadable. I know that I don't have a bad screen, but that it is because of the direct sunlight to the screen combined with high temperature, which was just over 100 degrees today, but that is pretty much what the temperature is around here all summer long, even going up to 115 at times. Once I'm done flying (and in the shade), the screen comes back within a couple of minutes. All I can think of is to put some kind of cover over, or shade around the LCD screen while flying, but that seems kind of awkward. Does anybody have any better suggestions? Also, will this eventually take it's toll on the LCD screen?

(in reply to Oldbob)

Post #: 664