time for a website update at XPS??

[Garland]

I think the XPS website should be changed to just the hard facts. So innocent customers like I was, arent taken advantage of anymore.

Instead of the site saying:
The XtremeLink™ uses all of the available frequencies in the ISM band through an advanced proprietary predictive frequency hopping technique.

It should be:
It has been bench tested by many independent people using lab grade technology, not to hop....
It does hop take our word, it just wont hop on the bench. In the real world it hops like a mad fool! In fact we are adding firmware to increase its hoppingness!
So yes with the new firmware XPS will start to actually hop on our 900mhz systems and we will prove it at that time.

XPS site: The transmitter module has a port for a remotely mounted telemetry control unit consisting of a large (20 character x 4 lines) trans-reflective and backlit LCD screen with three function buttons. The unit conveniently mounts in your old antenna hole! On-board sensor modules (which plug into the XtremeLink™ receiver) allow data from your R/C plane, car, or boat to be viewed in real-time! Up to 256 different sensor modules can be connected and accessed at the same time via the telemetry system. The telemetry upgrade comes with the standard flight sensor package which provides battery voltage, on-board temperature, and altitude. Additional sensor modules for airspeed, various temperature readings (exhaust gas temperature, battery temperature, etc.), and many other functions will be available. An earphone jack is used to access the built-in audio output. The telemetry control unit can be programmed to sound an alarm by using tones and/or human speech when certain events occur (such as too slow of air speed, too low of altitude, low battery, etc). Some of sample words in module vocabulary include: altitude, warning, landing, gear, speed, failure.

It should say:
Lug out your laptops! Data logger baby! We will do everything a Eagle tree will do already.

So buy XPS, and forget about those other guys who actually sell what they promise without hype.

Did we already say XPS hops in the real world? Ok because we do hop ya know....Or we will once the new firmware is out! Or is that our future 900mhz system that actually does the hopping? ...Either way who cares!

Thanks for visiting XPS website. The Hype stops here.

[JimDrew]

Apparently correct information stops here too?

The system does exactly as described, and that has been verified by many. Unless you can prove otherwise, please keep your ramblings to yourself. :)

[DavidH]

Apparently correct information stops here too?

The system does exactly as described, and that has been verified by many. Unless you can prove otherwise, please keep your ramblings to yourself. :)


When you say it has been verified by many to work as described. Who is the many? I have read threads on RCU and RC Groups from people that have the equipment to test it. They say it does not work as advertised. Of course it is hard to read some of those threads. Also there is more than several threads about lock outs and the resulting crashes. But those are hard to read also. Because the moderator of the forum deletes any opinions that state the product does not work as advertised.

David

[JimDrew]

"Many" are many reputable sources, such as from Boeing, Graupner, etc. Detailed information has been shared with the AMA, MAAA, MAAC, and the german equiv of the AMA (sorry, I don't recall the initialis for it).

The only thing that has been proven, is something that I mentioned many months ago, and that is if you have a saturation on a single channel, it will not switch. In the real world, this does not occur, but to appease the nay-sayers, we have added that ability as well.

[MarkWebber]

JMO, but I would think that the AMA would not permit the use of XPS systems at AMA fields if it had not passed muster. No? I've not been stopped from using it at any AMA field, yet. Nor have I ever had any difficulties on my helis. This while flying with other manufacturers systems operating. Even at IRCHA, the largest RC event in the world.

Just my experience.:thinking

[Pinecone]

1) Show the world all these tests that show it works the way it is said to work. I have not seen ONE test that shows it works that way. Links?

2) The AMA doesn't test equipment nor certify it. If it meets FCC regs, it it legal to use at AMA fields and events. It is up the modeler to ensure that their model is safe to fly.

3) XPS is the one that says the system will see an increase in noise on the selected channel and hop if the noise increases enough to interfere with the link. And the tests shown online, show it does NOT do so. What other conditions does it hop? And why?

[JimDrew]

I can assure you that the AMA, MAAA, MAAC, etc. ALL completely test a system for compliancy.

Our previous hopping routine only changed frequencies with a predictive ramp in the noise floor that duplicated conditions that we see while flying. A bench test as presented by a few is not something that even remotely duplicates the environment while flying. But, to appease those people, an addition was made to the hopping code to foil the bench test junkies.

There are people who have publically stated that they used the XDP's frequency analyzer to monitor the frequency in use, and the frequency on take off is not the same as it was on landing, clearly indicating a frequency change occurred. Ironically enough, frequency hopping is why we had a problem to begin with using 2.4GHz video cameras. If we were guaranteed to stay on one frequency, the 2.4GHz video camera issue would not have existed.

[DavidH]

I can assure you that the AMA, MAAA, MAAC, etc. ALL completely test a system for compliancy.


Don't know about the other organizations. But how does the AMA test a system for compliancy? I am not aware of the AMA having any equipment that they could conduct tests with other than frequency scanners.
Who at the AMA would have conducted these tests to determine if it was compliant?

Also why would the frequency not hop on the bench test? I don't think the receiver knows if it is being flown or sitting on a bench. Interference is the same where in the air or on the bench.

David

[mongo]

hey david, ya seen this yet?

http://www.flyinggiants.com/forums/fg239/23892-independent-tests-prove-lack-frequency-hopping-xps-87.html#post434320

the evidence keeps on adding up to "no hop, no way, no how".

and even worse, the failsafe doesn't even kick in.

[DavidH]

Mongo,
Thanks I had not looked at FG in a while. Interesting to find out about the Assan version also. But they have never made any speculations other than it was a 2,4 ghz system. No spin on what it would do other than fly the model.
Guess the moderator over the 2.4ghz forum on FG is not bias. LOL

David

[Garland]

Apparently correct information stops here too?

The system does exactly as described, and that has been verified by many. Unless you can prove otherwise, please keep your ramblings to yourself. :)

Isnt there more than enough proof already that XPS used predatory ficticious advertising on its victims?

Wheres XPS video proof of the current system firmware hopping that ya promised everyone after the Toledo show??

if XPS does perform as advertised then its only in perfect optimal/unrealistic conditions, right Jim?

But who knows as it cant be benchtested to hop.

[Pinecone]

And AMA would test for compliance with WHAT? They have no standards., other than meeting FCC standards.

Yeap, still waiting for the hopping video.