Independent tests prove lack of frequency hopping with XPS

[dirtybird]

	Quote: Originally Posted by BaldEagel
	Not stricly true, I had problems with the XPS/IFS system from day one first flight, in the work room no desernable problems and no problems when completing the manufacturers recommended range check on site, but in the air, four lock outs in one flight in areas that are known to have high level communication radio waves ? crossing an estuary, when tested on the ground in these areas the lock out could be repeated at an estimated ground level flying range. Spektrum and FASST work on this site without problem, the aforgoing was enough proof to me that the system has a fundimental problem, whether it hops or not it is not reliable enough in the area that I fly in, even for a foamie. Mike

Yet on the other hand I have two systems that have repeatably worked reliably in an area that has been shown to be high in RF activity in the 2.4 ghz range.
Have you considered that there might be something wrong with your particular unit?

[JEFFRO503]

	Quote: Originally Posted by Mike Busutil
	Yes Jeff, I have had my Edge at a few different fields for funflys and contest, I have also flown my Edge with other XPS users for a few months now and still no problems. I dont think any system out there can say they are 100% safe, everyone will have a problem one day with any system they fly. I look at it like this, if im always worried about whats going to happen today or can I really trust this system and just sit around and not fly then Im just like the old guys who sit at the field and never fly but complain about everybody else....... Just fly, everything will be fine

Well , no matter what system you fly with , that 50% Edge is friggin' amazing! I have yet to see one of these birds fly , but sure would love to. I myself am just now getting into the 100cc size ( 35% WH Sukhoi ) , but as a late winter project / early spring , i'm wanting to finally build myself a 40% extra 260 or 300. I'm wanting to slap a DA-170 on it for power. Hopefully , if everything goes ok with work this winter , i can have a big bird in the air.

Mike , can you post a pic of tha 50% EDGE? Or point me to a build thread you might have been in. I have checked out Snap a sauras (Ellie)<<< i think that's spelled correctly? And the size of that thing is scary!

[Mike Busutil]

	Quote: Originally Posted by JEFFRO503
	Well , no matter what system you fly with , that 50% Edge is friggin' amazing! I have yet to see one of these birds fly , but sure would love to. I myself am just now getting into the 100cc size ( 35% WH Sukhoi ) , but as a late winter project / early spring , i'm wanting to finally build myself a 40% extra 260 or 300. I'm wanting to slap a DA-170 on it for power. Hopefully , if everything goes ok with work this winter , i can have a big bird in the air. Mike , can you post a pic of tha 50% EDGE? Or point me to a build thread you might have been in. I have checked out Snap a sauras (Ellie)<<< i think that's spelled correctly? And the size of that thing is scary!

Sure thing Jeffro!

Just for you

[sweetpea]

	Quote: Originally Posted by dirtybird
	BTW Sweetpea were you at the Big Bird meet at Concrete last weekend? I flew my XPS stuff several times there.

Yep I was there on Saturday. I was with John and Ryan. What were you flying?



As for Mike.........when is the Sukhoi going to be ready? That thing is huge!

[JEFFRO503]

Mike , we'll never agree about the XPS thing , but i think we can both agree that your airplane completely kicks ASS! That is one awesome setup. Is the blue head 3W a 170? and maybe the four banger a 212cc ?? Haven't kept up on any of the sizes above a 150cc - 170cc. Great lookin' bird Mike!! thanks for the pics!

[Mike Busutil]

	Quote: Originally Posted by JEFFRO503
	Mike , we'll never agree about the XPS thing , but i think we can both agree that your airplane completely kicks ASS! That is one awesome setup. Is the blue head 3W a 170? and maybe the four banger a 212cc ?? Haven't kept up on any of the sizes above a 150cc - 170cc. Great lookin' bird Mike!! thanks for the pics!

Thanks Jeffro!

You are right about the 212..............But the Blue head is a 3W 275 26 HP!

Notice the size differents in the heads.

Im running a 37 x 13 Prop.

[Mike Busutil]

	Quote: Originally Posted by sweetpea
	As for Mike.........when is the Sukhoi going to be ready? That thing is huge!

The Sukhoi!!!! Man I have been trying to get my dad to finish that but he is doing a 50% Christain Eagle right now and has put it to the back burner

I'll keep on him about it though.

He did get a 47" prop for it a few weeks ago...........

[sweetpea]

keep on it........that will be a killer plane

[BaldEagel]

	Quote: Originally Posted by dirtybird
	Yet on the other hand I have two systems that have repeatably worked reliably in an area that has been shown to be high in RF activity in the 2.4 ghz range. Have you considered that there might be something wrong with your particular unit?

Two modules in different Tx's and five different Rx's all tested out the same, just not reliable enough in my opinion where high levels of interferance are to be expected, or the plane is not expendable. (I did put in another comment about safety here, but took it out in the interest's of not being inflamatory.)

Mike

[Dustflyer]

It amazes me that anyone would still risk a big dollar airplane on XPS.

I know of only two people who flew XPS in a giant scale bird. Both crashed.

At this point I know of absolutely no one who uses XPS. No top level flyers use it.

Back when XPS first came on the scene, I was one of the first people to notice the problem with it and made video tapes to prove it. Right from the start I knew there was a problem handling interference. It was obvious it was incapable of adapting, switching channels as it was advertised to do, when necessary.

Back then someone coined a terrific phrase. If you have any common sense or judgement at all you would be wise to keep it well it mind:

IT WORKS GREAT UNTIL IT DOESN'T!

If you are using XPS it is not a matter of whether you will lose your airplane, it is only a matter of when.

[sweetpea]

actually that phrase is really over used here

it applies to every device the world has ever made. Even my cheap drill from Biglots worked great until it didn't along with my 2005 Dodge Magnum that worked great until it didn't.

Doesn't matter if its low end or high end......all things work great till they don't


But keep things on track.........we still don't have the video of hopping from XPS and XPS still hasn't released satellites.

[dirtybird]

	Quote: Originally Posted by sweetpea
	Yep I was there on Saturday. I was with John and Ryan. What were you flying? As for Mike.........when is the Sukhoi going to be ready? That thing is huge!

I was in the Dolphin MH on the end flying my 62" Lazy Ace and a 80" Extra,both electric.