Xtreme Link Experiences

[klhoard]

	Quote: Originally Posted by aviti
	Maybe there is something to the whole multiple antenna concept of Jim's competitors....

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If the Xbee Pro system is so great for flying R/C, why didn't Futaba, JR, or Airtronics do the same thing JD did with it? You can't tell me that the teams of engineers at these companies were unaware of this system or were unable do the same thing JD has done? There has to be a reason the big boys developed their own 2.4 system instead of taking the Xbee Pro system "off the shelf".
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[Judge]

Well, as far as Futaba goes, they have been doing 2.4 SS for several years in the industrial world. That is why they have their own chipset and proprietary technology.

I do wonder why both Futaba and Spektrum have gone to multiple antenna solutions while XPS has taken a different road with the single antenna. XPS tries hard to sell it as the superior solution, but it still comes back to the question I asked the very day Jim Drew announced his system (9/5/06). And that is, what does Jim Drew know about this that the others apparently do not??

The answer to that question remains to be determined.

[sweetpea]

The main reason to get it higher (or lower) in the fuse is for a clearer path. Higher in my fuse because I run cans.

Less chance of engine or electronic noise if you seperate it further. I am by no means stating this is the problem I had or a solution. Just a suggestion when you go to install it.


There are folks flying just fine with it middle of the fuse like mine. That is what the XPS team is trying to determine....why did my setup/system have problems.

And brown-noser? Maybe? I've been called worse by my wife

[Judge]

	Quote: Originally Posted by sweetpea
	Less chance of engine or electronic noise if you seperate it further.

I thought that the 2.4 systems were impervious to most all electronic noise. The story is that this all happens at 300 megahertz and below. Far below the 2.4 gigahertz band.

Did Jim and Scott indicate that perhaps internal noise may have been a contributing factor to your loss of control??

[sweetpea]

No they did not. They said they would get back to me as soon as they found something out.

Seems noise is effecting spektrum also as the numerous reports are coming in about them going into lockout.

It's like we said from the beginning Judge. 2.4 is not the save all of RC. It has proven to stop shotdowns from radio turnons but is still prone to interference

[Judge]

	Quote: Originally Posted by sweetpea
	No they did not. They said they would get back to me as soon as they found something out. Seems noise is effecting spektrum also as the numerous reports are coming in about them going into lockout. It's like we said from the beginning Judge. 2.4 is not the save all of RC. It has proven to stop shotdowns from radio turnons but is still prone to interference

Exactly my point. I think too many people are thinkng that we can totally ignore the ossibility of Rf problems when using SS.

As we've already said, we are on a steep learning curve here trying to catch up with nearly 4 decades of experience with 72.

[rceagle1a]

Like I said earlier guys. Everyone is raking Jim over the coals for the single antenna thing. I'm also in that boat or at least on the edge of that boat. I won't run the system I ordered until either X-link gets this figured out 100% or until the telemetry kits come out so we can add more antenna's. I actually think three antenna's in a radial pattern mounted externally(Just the antenna not the whole RX) right behind the canopy would give the best signal reception because you would be covered in almost any flight attitude your plane might encounter. In another thread JD has stated that you could add up to 256 more antenna's with his telemetry kit. I feel if the single antenna is causing this issue then Jim Drew Should give ALL customers an upgrade to RX telemetry and two, or at least one more antenna module to strengthen the link. I am only up to 30% planes but I know most guys on here dwarf that.Again,Just my .02 worth.

[ben_beyer]

Well, I hope it isn't too important for the location of the receiver. I'm putting a set of the ES Composites carbon fiber tuned pipes in the plane I'm building now and I don't want to have to mount my receiver half way to the tail to get away from radio noise.

[tavis newman]

THIS THREAD IS USELESS WITHOUT SOME ANSWERS FROM JIM DREW!
JUST LIKE TALKING TO THE WALL!!!

[klhoard]

Sweetpea,

Were you running a carbon fiber prop? If I remember correctly, basically your airplane's engine was between you and the receiver when your plane went down. How much interference can a 26 inch disk of spinning carbon fiber have on the signal?

[easytiger]

	Quote: Originally Posted by klhoard
	. If the Xbee Pro system is so great for flying R/C, why didn't Futaba, JR, or Airtronics do the same thing JD did with it? You can't tell me that the teams of engineers at these companies were unaware of this system or were unable do the same thing JD has done? There has to be a reason the big boys developed their own 2.4 system instead of taking the Xbee Pro system "off the shelf". .

I was told by a friend at Futaba that Futaba did indeed test and reject the Xbee module. Too many problems. I would assume(assume only) that the other companies were also aware of the Xbee module.

[Kiwi]

Sweetpea,

You guys had some sort of event this weekend. Were there any XPS systems flying and did they have any issues. I trust this is the same field where you lost your plane so if its field related or 2.4 saturation related did the problem appear with the other guys.

Kiwi

[easytiger]

	Quote: Originally Posted by tavis newman
	THIS THREAD IS USELESS WITHOUT SOME ANSWERS FROM JIM DREW! JUST LIKE TALKING TO THE WALL!!!

Actually, I think talking to Jim Drew is a major part of the problem.
You can't get a straight answer.

He's never going to admit that there might be a problem.



"I do wonder why both Futaba and Spektrum have gone to multiple antenna solutions while XPS has taken a different road with the single antenna. XPS tries hard to sell it as the superior solution, but it still comes back to the question I asked the very day Jim Drew announced his system (9/5/06). And that is, what does Jim Drew know about this that the others apparently do not??"

I think what he had, that Futaba, Spektrum, and the others did not, was a pretty complete lack of any experience whatsoever with RC.
I think Jim Drew started in RC only rather recently, and maybe did not realize all the situations that the antenna might encounter. I seem to remember, also, Jim Drew trying for thousands of posts to convince us there was some OTHER form of antenna than the stock Xbee one. Some secret spheroid antenna. Seems like it's just the plain Xbee one, and there may be some problems inherent in that.

[3ddd]

hey seetpea you know i am only ribbin ya huh?/as far as i know i was not there but alot of planes went in in vegas including benders 50%edge and i am real sorry that happened

[Fly3DWithStyle]

The response and explanation from Sweetpea, as to the actual problems were, to me, extremely superficial. If Sweetpea shows up shortly with a new airplane sporting the Extreme Link system, then we’ll know how he was taken "care" of. I’d like to know how Jim Drew "took care" of him and is he willing to "take care" of everyone who encounters problems while utilizing the Extreme Link system?

The fact that Jim Drew knows of XPS’s apparent faults and the fact that he’s decided not to respond to the questions that have been asked indicates to me that Extreme Link is not going to be at the forefront of customer service.

Let’s talk a little about dirty fields. What does that really mean? I’m not sure how many fields there are in Las Vegas, but it’s apparent, by Jim Drew’s comments, the two fields that Sweetpea mentioned were "dirty". Is there an electronic device that’s used to determine whether or not a field is dirty? Should one take the chance of crashing planes to determine if he’s flying at a dirty field. Is there a mathematical formula to determine a dirty field. Let’s fly ten planes at a particular field and if only two lockout, is that field labeled minimumly dirty, relatively dirty or extremely dirty. Should we use the Homeland’s Security color rating code at particular fields to indicate the "threat" of dirtiness?

Did Sweetpea ask Jim Drew why he hasn’t responded to the questions on various forums? He was, as a matter of fact, one of the first to experience problems and was one of the first to try to contact Jim Drew for answers. Had Jim Drew not been in Las Vegas where he was out in the open to be confronted by Sweetpea, would Sweetpea ever had a chance to discuss the problems that occurred?

Lots of unanswered questions. This is going to be an awfully long saga.