Spektrum Technology

[Troy A. Newman]

No license required. Same as our current 72mhz use. These things are not an 
issue. Also I'm not an expert in the technology and the question about other 
users of this band. My understanding is the frequency usage for RC is so 
small its a flake of pepper in the 2.4ghz band. Also that there are no 
issues with our use and the 2.4ghz router next door causing issues. I'm not 
an expert on this stuff but I have discussed it with the engineers during 
testing and it is not an issue.

Steve is correct there are two channels used when transmitting. The band we 
are using is large enough to operate up to 80 systems without problems. I 
don't think I would be flying a pattern model through 80 other models at the 
same flying field...but it might be fun with a foamy!

Troy
----- Original Message ----- 
From: "Del K. Rykert" <drykert2 at rochester.rr.com>
To: "Troy A. Newman" <troy_newman at msn.com>; <discussion at nsrca.org>
Sent: Tuesday, October 25, 2005 6:18 AM
Subject: Re: Spektrum Technology


> Do we need a special license to operate this new 2.4 GHz stuff?  You are 
> talking about operating on a totally different band, correct?
>
>                 Del
>          nsrca - 473
>
> ----- Original Message ----- 
> From: "Troy A. Newman" <troy_newman at msn.com>
> To: <discussion at nsrca.org>
> Sent: Tuesday, October 25, 2005 1:22 AM
> Subject: Spektrum Technology
>
>
>> Ok guys it is finally here. This weekend at the Houston(Tomball) SPARKS 
>> contest I was asked a few questions about this new and exciting product. 
>> We as pattern flyers are going to benefit from this.
>> I have had the opportunity to be flying one of these systems for the last 
>> few months.
>>
>> http://www.horizonhobby.com/Shop/ByCategory/Product/Default.aspx?ProdID=SPM2460
>>
>> I have tested this system both my local flying field here in PHX (Sun 
>> Valley) as well as flying foamies and such in my yard and local parks.
>>
>> The system has been 10000% glitch free. I can't find anything in the 
>> system that responds differently than my 10X. Response time is faster 
>> than PCM, the resolution is excellent, better than anything out there 
>> currently for any of the radios systems. There is nothing about this 
>> system that is below outstanding. Basically the system solves  two very 
>> important problems we have in modeling today:
>>
>> #1 No frequency control issues. There is no frequency pin needed and you 
>> would not even know which one to choose because the system picks a 
>> frequency that is open when you turn it on. Don't get shot down again. 
>> This system can operate with like 80 different TX's all at the same time 
>> and no interference issues. This will make the frequency pin obsolete! 
>> The system boots up about 3-5secs and picks a frequency not being used. 
>> It then tells the RX what channel to listen too and you are done. You 
>> don't even know what channel you are flying on and it doesn't matter 
>> either. Another TX turns and scans the air and picks another frequency 
>> and uses it. Its totally user friendly...Basically you just turn it on 
>> and its working. It has a Failsafe safety feature than can be programmed 
>> when you "Bind" the RX to the TX. This Failsafe works just like PCM 
>> failsafe. The Binding process is how you tell the RX "who's your daddy" 
>> This process takes about 20secs and from then on the RX will only listen 
>> to your TX. If a buddy wants to fly it with his TX....just 20 secs later 
>> after you tell "who's the daddy" its now listening only to that TX. We 
>> have all been at an event with the foamy flying at night and the call for 
>> frequency is heard from the other end of the parking lot or pits. This is 
>> never a concern again with the Spektrum System from JR and Horizon Hobby.
>>
>>
>>
>> #2 Model generated interference is not an issue. I have tried using this 
>> system on regular brushed electric powered models sometimes in this 
>> environment you can get a glitch or the likes running PPM (FM) systems. 
>> This new 2.4Ghz system eliminates this problem. Its like PCM in that it 
>> rejects bad stuff and keeps the good stuff. From my understanding model 
>> generated RF problems like brushed motors, metal to metal contact (drives 
>> FM stuff nuts), ignition systems, and the likes....this new 2.4ghz stuff 
>> is way above those model generated interference frequencies.
>>
>> I love the system. I know Horizon has spent a huge amount of time testing 
>> and evaluating this system. It is a revolution in RC.
>>
>> We have been basically flying on the same types of signals since I have 
>> been involved in RC in 1981. The one big weakness with our 72mhz system 
>> in my mind is no matter how good your equipment is, not matter how much 
>> you have invested in a model, no matter what TX you have 14MZ, 10X or the 
>> likes a shoot down can happen with a attack4 AM radio. The result of a 
>> mistake in the pits or parking lot can cost you your model. A simple 
>> mistake by an experienced or new modeler can cost any of us our models 
>> with previous systems.
>>
>> We have all heard of the stories about getting shot down.
>>
>> Well this system is the first step to eliminate this problem! I can say 
>> its been eliminated on this 6 channel radio system. Next step is for big 
>> radios.
>> The RX's are cheap about $60. They are light about 7-8g (6channel RX)and 
>> the RX has 2 different antennae. They are about 3-4" long...so no more 
>> stringing the extra out the tail of the model. There are lots of other 
>> advantages in this new technology. All this and the same high quality 
>> stuff that JR produces with the 72mhz stuff.
>>
>> This radio system is priced and setup for the park flyers, but its only a 
>> matter of time and we all will be benefiting from this stuff. Besides as 
>> said above making this system available for a good price to the everyday 
>> modeler where it is needed is the first step to really change the way we 
>> fly our models.
>>
>>
>> If you guys have any questions I would be happy to answer them. My 
>> experience with the system has been absolutely flawless and I know others 
>> have had the same. This stuff is ready for prime time and its going 
>> change things in a huge way.
>>
>> Troy Newman
>> Team JR
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>
> 
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