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If this thing turns out only to be half as good as is being claimed, it still has to be far superior to anything we use at 40Mhz now.
Like Kane & Leo Im more than happy to test one. Providing the event organisers are happy and they work as promised, then I propose the FRA should approve 2.4Ghz without delay.
Geoff, Ive already ordered mine :)
Bet I can get one fitted in a working robot before you can.. :lame:
i got one for my rc truck quite good but if not tuned in right the reciver in the truck goes mad no failsafe or anything
BTW no point ordering from usa nearly every RC shop has the sets instock well all mine do
(Message edited by teamkenny on May 08, 2006)
Kenny, have you got any links to UK stores selling the DX6?
Ive been keeping track of this since it turned up in the American scene, Kenny you might be using the stock standard receiver (AR6000 Bot Receiver) which has no failsafes except for on the throttle channel, but after a discussion with the makers of the Spektrum they now produce a receiver specially designed for robot combat (BR6000 Bot Receiver) with full failsafe ability to all channels.
http://www.evolutionmodelsport.com/content.php?categoryId=358http://www.evolutionmodelsport.com/c...categoryId=358
http://www.modelsport.co.uk/?CallFunction=BasicSearch&order=Price&search_strin g=Spektrumhttp://www.modelsport.co.uk/?CallFun...search_string= Spektrum
The only transmitters widely available in the Uk at the moment as far as I am aware are the pistol grip designs although suppliers may be able to order the DX6 for you. I was talking to someone at Magna and Worcester event about the 2.4Ghz system and have been holding off buying one because its not a recognized frequency yet.
Chris - ^_^
They clearly need alot of testing before they should be added into the FRA rules, and someone needs to test them. Personally I dont know much about these sets but get alot of problems with other 2.4GHz stuff interferering with each other, and strangly enough Ive a 27MHz set that stops anything I have on 2.4GHz working when turned on.
Wireless Joypads, Keyboards, mice, alarms systems, cctv, and alot of others use this band. Ive had most problems with mice, if there are 2 or more (even on different channels) Moving both at the same time more often than not stops one of them working.
Does anyone know how many channels the wireless routers use, I suspect they could even use all the channels to get the bandwidth, but although they claim to be 2.4GHz they could be on seperate channels.
Dont forget, Wi-fi & Bluetooth also use 2.4GHz, and If I remember so do microwave ovens.
Its the Department of Trade and Industry Radiocommunications Agency (DTI-RA) that deal with this stuff.
The spread spectrum technology employed in the DX6 is very noise immune. In addition, it scans for 2 free channels before transmitting.
It will not interfere with or be interfered by other 2.4GHz products. If it is, it is highly unlikely that the interference will upset both channels.
Furthermore, the transmitter pairs with the reciever digitally so there is no possibility that your receiver will be controlled by someone else.
The key problems we have at events are:
Noise Interference - PCM immune to this although failsafes are very slow.
Close frequency interference - Due to either people using the same or nearby frequencies
Limited channels - Cause everyone has the same crystals and they are a pain to change
Tech-checks - Cause youre frequency is usually booked out
I certainly do not believe this could replace Transmitter control. It is important to keep track of who has what.
(Message edited by kane on May 09, 2006)
Read some of the manual, The binding process and the 2 channels are a great idea, but done some checking and I still say that other 2.4GHz devices may casue problems. Of course they wont advertise this as no one would buy them if they did, but to say it certainly will not is asking for trouble, what they probably mean is it may stop working be wont casue unpreditable results.
The 802.11b Wi-fi standard used 11 channels for the whole spectrum and when they actaully tested them, they found they could only reliablely use 3 of them because they interfere with each other in practice. So if there are 3 WLAN access points in a venue the whole spectrum will already be full. This data is in packet form so does not transmitt all the time, one of these radio sets could then allocate an overlapping frequency.
I should point out that this is still extremly unlikely to cause the robot to go out of control but could intermitantly enter failsafe. With only one or 2 robots using these I doubt this will cause a problem or even be noticed if it did, but if more used them then the chance of problems increases.
As proven many times before you can only use the same frequency band so much before problems arise and this band is not reserved for model use as 40MHz is.
Bluetooth uses 80 channels as well so I suspect that its the same technology as this but with more range and without the frequency hopping, which makes it resaonalby cheap.
Having said that if I needed a new transmitter Id seriously think about these, they still have alot of advantages, the most for me is that it will have predictable behaviour like PCM (but cheaper) on loss of signal, so less chance of a weapon firing on its own.
The only problem I see so far is how to extend the areial so the rx is well inside the robot but Im sure the manufactures can advise people.
Kane, If you get one then Ill bring my 27MHz set and see if it stops it :) as even there manual says theres no posibility of this.
got mine from evolution is 1 mile away down road