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Old 01-08-2008, 01:50 PM   #229
sweetpea
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Default Re: Independent tests prove lack of frequency hopping with XPS

Quote: Originally Posted by captaine
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Sweety, you say you met Jim Drew only once, can you tell us about that, I heard you got a free plane from him because yours crashed due to XPS failure, I believe that's an automatic disqualification for you not to post in the 2.4 threads regardless of the subject. Are you now using the XPS system and in what planes, how many flights?
Rumors are great aren't they. No I did not get a "free" plane. I did buy a replacement plane from Wild Hare though....do I need to produce the CC reciept with my name and card number on it? People believe whatever they want because I said that XPS and I came to a resolution about the my crash using XPS at the time (and no where did I say XPS had to be at fault, I was professional with them 100% of the time on the internet, on the phone and at my home). Also I didn't must meet Jim...I also met his partner, who actually did more of the talking and explaining than Jim did. I was very impressed with the knowledge of the companies product and how they treated me professionally. I still fly XPS in my smaller planes. I fly Spektrum in my larger planes.

Why you might ask? 2 reasons.

1) after my crash on 2.4 I realized that a large 35% or 42% plane had a far greater chance of blocking the signal and it has a higher initial investment from my wallet

2) I've spent 10yrs working with Radars and radio freq in the military and I understand the pencil beam vs the firehose signal that comes from 2.4 and 72mhz.

Now as to why spektrum in my large planes.......easy....satellite RX's and the data logger. Until XPS comes out with satellites and telemetry I won't use it in larger planes (I told them this when they were at my house) I wouldn't use FASST either for the same reasons and because currently they don't support JR radios either. I've found with Satellites you can compensate for the pencil beam by having multiple reception points in the aircraft. (I'm not a fan of one RX no matter how many small wires you have sticking out of it in 2.4). I like the fact I can put a RX in the tail, center and nose so I can essentially do what 72mhz did with its enourmously long antenna. Oh and I don't get shot down from a "newbie" or a slip up down the flight line (I also can't shoot someone else down!) and can look at each antenna and see the signal strength and make changes accordingly.

So, yes I can post in the 2.4 forum........what systems/experience do you have that enables you the right? Why the personal attack?


Also.......why no mention of the problems with Spektrum or FASST in this thread.

Spektrum- voltage issues, reboot times, capacitors needing glued down, trouble binding sometimes. Can anyone tell me if I send my AR9000 in that they would fix all these issues for free or replace my RX? I'd like to know. So far I haven't heard you can send in a RX for the "new" rebot time fix.

FASST- unique ID's matching 2 radios at the same time, trim changes on models
The free software is supposed to fix these that comes out on the 8th.

Of course Spektrum and Futaba are fixing their issue with updates......but nobody calls foul or B.S. And these are major issues that can and have caused crashes (in some instances). They also do a good job of pushing it under the carpet......Spektrum is calling the changes "new features" and Futaba is just submitting software updates on the website.

So XPS found from its customers 3 issues.....

small antenna did not work as well in high noise enviornments, they replaced antennas for free, and future models came with new one.

problems setting functions in the RX (too complicated for some people to cycle through) now you can get a programmer that makes it a breeze and update your software with it instead of sending in the RX

Freq did not hop in sudden high noise like customers percieved. According to XPS this was not a fault but a known solution they had to an issue of band covering interference. With the rise of 2.4 cameras being used they decided to change the hop algorithm to include sudden noise becuase of customer concerns. This may prove worse in the future, who knows. Remember this thread started as an XPS does not HOP thread. That has yet to be disproved in all instances! Xjet only proved what XPS knew from the start.

Kinda like the reboot issue with Spektrum.....I didn't see in my manual that it would take 4 seconds to reboot if power was lost. Some customer had to do that first then Spektrum acknolwedged it much later after numerous crashes/near crashes and made a customer need a fix. Sounds very familar to XPS situation




So we have 3 major stakeholder in 2.4ghz. They all 3 have had issues from day one!

But because people don't personally like JD they pick on his company or maybe because its a small company and not huge like the others or because they don't like they way he advertises or markets.
Or they just want to see the company fail. I don't know.

Fine, don't buy XPS. Nobody is pre-charging your credit card.

I agree that we need to keep the thread open.......but come on....personal attacks, and people bashing systems etc......all crap.

Keep it professional. State the facts.

That is all we, as customers need......

So I'll repeat the FACTS as stated by the manufacturers that we as customers have asked them to verify and they have by fixing their items.

XPS
-High noise, sluggish controls.....small antenna may not be for all areas (so use new antenna)
-freq hop does not happen in sudden noise rise (like 2.4 cameras)........Software fix coming
-Problems understanding how to program your RX....buy the XDP device to make it easier but it can still be done without it.

Spektrum

-battery volt issue.....buy external capictor and realize min voltage amount
-reboot time...After july 07 all RX's have a much faster reboot time (no word yet on if you can get older rx's fixed for free or at all)
-Sometimes it binds sometimes it doesn't.....no fix or cause determined yet

FASST

-Unique ID on 2 radios.....looking into this claim
-Trims change on models......should be in software fix avail 8 Jan


And if you think there won't be more problems with each of these systems or any of the "new" chinese versions.......pull your head out of the sand. There is always room for improvement. Its just with 2.4 and the software they use its much easier/cheaper to update than a PCM 72mhz RX.
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Last edited by sweetpea; 01-08-2008 at 01:57 PM.
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