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| 2.4 Ghz Spread Spectrum Technology Discuss Spektrum, Futaba FASST, and all of the exciting 2.4 transmitter/receiver technology here! |
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| | #757 (permalink) |
| Super Contributer ![]() Join Date: Apr 2007 Location: nyc
Posts: 144
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"(Once again I wince at the magazine that is owned by a MAJOR mail order company that said the Kyosho Gee Bee Z was a great ARF)" WHICH MAGAZINE IS OWNED BY A MAJOR MAIL ORDER COMPANY? And...the Kyosho Gee Bee was a great plane. Deserved the positive review. |
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| | #758 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! ![]() ![]() |
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| | #759 (permalink) |
| scale dumb a$$ ![]() Join Date: Mar 2008 Location: Seattle, WA USA Age: 37
Posts: 87
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Speaking of receivers from China, I was down in Las Vegas a few months ago at a convention and was walking on the strip. At a little vendor booth on the sidewalk was a guy selling cheap $35 RC helicopters from China. Out of curiosity I picked up one of the boxes and noticed it said on a paper inside that it operated on channel 29 (72.370Mhz). Man was that a scary sight. The influx of these type of "toys" are a real shame. I thought all of that stuff was down on 27Mhz or at least anywhere else other than 72Mhz but apparently not. nick |
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| | #760 (permalink) | ||||||||||||||||||
| Seasoned Veteran ![]() Join Date: Jul 2007 Location: Enumclaw, Washington
Posts: 252
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| | #761 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! ![]() Join Date: Apr 2008
Posts: 312
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First of all, I think that's perfectly alright considering we've been sold 30-year-old technology up until recently. The amount of BS in the field of RC RF technology was incredible, with some companies claiming that their own (primitive, discrete) receiver was better than a DSP-enhanced, signal-recognizing MZK because of... uh, "better filters". Right. Let them make good money with 2.4GHz, because at least it's not the same old 35/72 stuff anymore. Second of all, compatibility: We live in an age of patent litigation. You can bet that there has been more than one meeting at any of the involved companies where an engineer suggested to go the compatibility route to one of the major other brands, and you can also imagine the weird looks from management on that. The fact is that avoiding other companies' patents often influences the design, which practically guarantees incompatible systems. I know what I'm talking about, we have the exact same problem where I work, and nothing is scarier than to see the suits come in and talk about having to do "TCP broadcasts" to avoid infringing some other company's idiotic bread-and-butter patent. Third, I don't think the Chinese give a damn about FASST or Spektrum or anything like that. They make their own 2.4GHz systems already, and frankly those systems - albeit non-hopping - work better than what XPS is offering. For example: ![]() This little feller is 100 bucks complete with 2.4GHz TX. It's a single-channel, non-hopping system that selects its channel on power-up. Sound familiar? And guess what: It's not even crippled in range, and performs rock-solid. Oh and as soon as I showed up with the helo at our field, 5 other guys ordered one as well because that one's not bad either ![]() I have little doubt that we'll see a frequency hopping system designed and made in China before too long. They don't care about compatibility anymore either because they can make their own systems just as well. Already, Walkera is selling a 10-model computerized radio, and it's only a matter of months until a 2.4 version of that one pops up. To bring this whole thing back on topic: The moment you take the broken-by-design hopping-functionality of XPS out of the equation, the Chinese are blowing them out of the water already. | ||||||||||||||||||
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| | #763 (permalink) |
| Bad-ass Super Contributer! ![]() Join Date: Dec 2006 Location: Goldsboro,NC,USA Age: 49
Posts: 396
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Its those little 72mhz heli toys that made me go 2.4 as well. Was at a fly-in a little while ago when one 72 mhz after another (8 or more) went in and they finally quit flying 72 for the rest of the event. Seems a tower nearby was causing lockouts.(btw this has never happened before) All of us on 2.4 carried on as if nothing had happened. This ticked off at least a couple of people on 72 who were still going on about "devil radios". The $600 for my 9303 was well spent imo, dont care if JR made money or not and most of us at fly-ins seem to feel the same way. |
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| | #764 (permalink) |
| Bad-ass Super Contributer! ![]() ![]() |
They already have some excellent radios on the market and the link supplied below is just one of them. This 9 channel radio is also supplied in 2.4 Ghz and I think it is the ASSAN system but I dont have proof on that. Not too bad for a $200 or so radio anyway you look at it. We too are seeing the toy class imports arriving here in 72Mhz channels and there have been a few unaccountable hits and lockouts at the local club. None with crashes so far but with these toys getting to be mainstream its only a matter of time. http://www.wflysz.com/productsE.asp |
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| | #765 (permalink) | ||||||||||||||||||||||||||||||
| scale dumb a$$ ![]() Join Date: Mar 2008 Location: Seattle, WA USA Age: 37
Posts: 87
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| | #766 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! ![]() Join Date: Apr 2008
Posts: 312
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Yes, that's ASSAN. Here in Europe it's distributed under the Jamara brand. It's a tad limited. | ||||||||||||||||||
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| | #767 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! ![]() Join Date: Feb 2006 Location: New Zealand Age: 55
Posts: 791
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__________________ When I'm not here, I'm at RC Model Reviews | ||||||||||||||||||
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