Independent tests prove lack of frequency hopping with XPS

[BaldEagel]

	Quote: Originally Posted by Flyfast1
	Mike, Are you saying that with your XPS system you cannot even connect to your plane on the ground at your field? You have no response and the system does not go into failsafe? -Ed B.

No I can connect to the XPS/IFS system at the field, but when I take the system too the areas of most interferance on my site the unit goes into lock out and stays there until I move the Rx etc out of that area, the area's are very specific and line up with the appoximatly known positions of the radio communication towers plotted on an "Ordance Survey" map, these towers are not in sight, but are positioned on either side of a large river estuary.

Mike

[gregw]

	Quote: Originally Posted by XJet
	Unfortunately it looks as if you have to sign up (just what I need, another id/password) before you can access. The advantage of YT is that *anyone* can watch its content without the signup hassle and they can also be easily embedded in other webpages. YT also now has a High(er) Definition option which makes much of the newer stuff look very good indeed.

You only need an account to upload, not to view the compressed version.

Here's an example of the difference in quality of the compressed videos between Youtube and Vimeo, using the same source file:

Youtube Video:

YouTube - Logo 10 w/Onbroad video at Discovery...

Vimeo Video: http://www.vimeo.com/830792

As you can see, Vimeo is significantly clearer with much less artefacts on the video. The biggest advantage, however, is that anyone with a Vimeo account can download the original source file to view it without the compression.

[XJet]

	Quote: Originally Posted by gregw
	You only need an account to upload, not to view the compressed version. Here's an example of the difference in quality of the compressed videos between Youtube and Vimeo, using the same source file:

I'll check out the difference when I get to my faster machine but I take it from the inclusion of a link that the vimeo vids aren't able to be embedded in a third-party's webpage?

[gregw]

	Quote: Originally Posted by XJet
	I'll check out the difference when I get to my faster machine but I take it from the inclusion of a link that the vimeo vids aren't able to be embedded in a third-party's webpage?

It depends on the forum, and if they have allowed embedded videos from Vimeo. FlyingGiants has obviously not allowed this, but RC Groups embeds vimeo videos just fine.. See the same vimeo link I gave about embedded in this post.

[Garland]

wew! I chewed through all this post!

Gold star for Garland!

On my XPS Rx, does the antennea nub have to be vertical and high up in the heli or can it be high up and horizontal pointing toward the nose?

Hirobo Shuttle .30 conversion with ESC/motor in the back of the heli frame well separated from XPS Rx up front.

I cant afford another 2.4 option right now so I'll use my XPS 9C and just label the servo wires going to my 10 chan Rx and swap it between my helis to limit my $$ exposure to XPS till they offer a updated firmware and satellites or my wallet can swing a FASST solution.

But Futaba doesnt have cost effective Rx's that I can find. Spektrum, great system but it just isnt my bag.

Maybe I'll try Airtronics. Kiwi can ya test Airtronics next? Id like to see if its Futaba's equal.

Thanks for all your hard work for us Kiwi, Xjet and others.

[4*60]

....

[linw]

Thanks heaps Kiwi, Xjet and others for this mammoth thread. I have learned so much about 2.4GHz technology it isn't funny. (I am also pleased I bought Spektrum!).

We certainly now know which systems are safer than others, and why.

Lindsay.

[Fish07]

Hello to all,specialty X-jet .yes i one of those who started this dilema,and all my treades have been deleted baned for 30 days for comlaining about XPS,because i learned the hard way and lost to beautiful planes anyway thats all solved ,i have gone Fasst.one of the reasons i got XPS was for the frequenzy hoppingit never worked.this is very easy to scam people and convice them that something works when it dont . a word of advice to anyone looking to change from FM-PCM ,yea and XPS ,i have tried them all and all my equipment was JR, but Fasst works as ADVERTISE,gone back to futaba and at my age not going back !!

Thx ,Kiwi (your my kind of friends) Xjet and all you guys burning there butts for the TRUTH. Cheers..

[Flyfast1]

Out of curiosity, if all your equipment was JR, why did you decide to change over to FAAST instead of using 2.4GHz modules with your JR?

-Ed B.

[Fish07]

	Quote: Originally Posted by Flyfast1
	Out of curiosity, if all your equipment was JR, why did you decide to change over to FAAST instead of using 2.4GHz modules with your JR? -Ed B.

Dude not again ,uhhh fan boys

[Fish07]

	Quote: Originally Posted by Flyfast1
	Out of curiosity, if all your equipment was JR, why did you decide to change over to FAAST instead of using 2.4GHz modules with your JR? -Ed B.

was using it with XPS

[zoomer260]

	Quote: Originally Posted by Garland
	wew! I chewed through all this post! Gold star for Garland! On my XPS Rx, does the antennea nub have to be vertical and high up in the heli or can it be high up and horizontal pointing toward the nose? Hirobo Shuttle .30 conversion with ESC/motor in the back of the heli frame well separated from XPS Rx up front. I cant afford another 2.4 option right now so I'll use my XPS 9C and just label the servo wires going to my 10 chan Rx and swap it between my helis to limit my $$ exposure to XPS till they offer a updated firmware and satellites or my wallet can swing a FASST solution. But Futaba doesnt have cost effective Rx's that I can find. Spektrum, great system but it just isnt my bag. Maybe I'll try Airtronics. Kiwi can ya test Airtronics next? Id like to see if its Futaba's equal. Thanks for all your hard work for us Kiwi, Xjet and others.

Wow, I just noticed the post count. I'm so glad I kept current !!

[Flyfast1]

	Quote: Originally Posted by Fish07
	Dude not again ,uhhh fan boys

I am not sure what you meant by your comment.

The question was to inquire why the poster chose to adopt Futaba's FAAST system instead of using, for example, Spektrum modules in his existing JR equipment.

-Ed B.

[ASSAN]

hi, guys.

i am disappointed that some body told the people that without hopping system is not as advanced as hopping system,easy broken when it's meet nosie.

i must say that is wrong,because X8 is one ch system without hopping. that report hurt us and make customers worry about what he purchase.

i need told the customer the fact, that they don't so clear know what happened in the new commuicate technology.

in fact, one channel 2.4G system can keep solid in the noise condition.if it's not better than hopping,it's equal to.i think.

lets look at the pictures, i shot them this morning.that proved that without hopping,X8 system is still keep solid in full nosie conditon.

[XJet]

Assan, as I pointed out on RCG, your timeline is very sparse so, even though you have hi-amplitude noise on the lower graphs, I would not expect it to cause a problem with any SS system.

You need to generate a signal that increases the density of your timeline to really simulate the equivalent of strong interference.

When I get my hands on an Assan module and receiver I will run my own tests along the same lines as those that Kiwi produced but I'll introduce a whole lot more variables to give greater resolution as to the limits of each system.