Spektrum Technology

Tue Oct 25 14:42:50 AKDT 2005

Guys this was posted in another forum by Danny Snyder the JR Customer 
Service Rep that does the stuff on RCU and other forums

"Actually the "receiver" is truly a transceiver and does transmit data to 
the transmitter. It is a 2 way communication at both ends. The receiver is 
bound to the transmitter via the GUID, and if there is any noise or other 
user on the same channel, the Spektrum system will ignore it and not use the 
data since it doesn't use the same GUID. It is truly interference free. All 
systems using the 2.4 Ghz band are stipulated by the FCC to be "smart", in 
that they will not cause interference to one another.  And the air system is 
also a "dual link" using 2 channels for redundancy and also for a stronger 
RF link."

I hope this answers most of your questions

Troy Newman

----- Original Message ----- 
From: "Troy A. Newman" <troy_newman at msn.com>
To: <discussion at nsrca.org>
Sent: Tuesday, October 25, 2005 10:41 AM
Subject: Re: Spektrum Technology

> Yes,
>
> as the TX "boots" up it selects the frequencies to use. There is no way to 
> tell from the user standpoint what frequency you are on...Nor do you need 
> to. The system scans and finds it frequencies to use.  Remember it uses 
> two frequencies out of the list of like 160 available. IT can't pick a 
> channel already in use...and even to take it further your RX is Bound to 
> your TX...so it only listens to properly formatted data from your TX. The 
> redundancy of the dual frequencies is what I think makes this system 
> bullet proof.
>
>
> The question came about range. I believe the dual channels has solved this 
> problem as well....But I have no specifics on this at this time. I do know 
> that I have flown a model further away than any pattern model would be and 
> did not have any range issues. I set the F/S up to cut the throttle and 
> never had so much as a blip way out and way low to the ground. Ground to 
> ground range test with antennae fully extended on my 10X and the DSM 
> system was nearly identical. I don't believe range is an issue.
>
> It is a very very secure link. And the resolution and response time is 
> better than PCM.
>
>
> Troy
> ----- Original Message ----- 
> From: "Wayne Galligan" <wgalligan at goodsonacura.com>
> To: "Troy A. Newman" <troy_newman at msn.com>
> Sent: Tuesday, October 25, 2005 7:07 AM
> Subject: Re: Spektrum Technology
>
>
>> Troy,
>>
>> Is this scenario possible?   Say someone is using the new tech radio and 
>> it
>> happens to lock in on my frequency as it fires up.  I fire up my radio 
>> and
>> does the new radio automatically sense my radio is on and switches or 
>> jumps
>> to a new frequency?
>>
>> Wayne G.
>>
>>
>> ----- Original Message ----- 
>> From: "Troy A. Newman" <troy_newman at msn.com>
>> To: <discussion at nsrca.org>
>> Sent: Tuesday, October 25, 2005 12:22 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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