[LASS Soaring] "Jack Benny is 39 and 2.4 is 38?" Thanks for the 'assurances and guesses!"

[Brian Kopke]

As far as the freq conflicts are concerned, I believe that devices on
2.4GHzscan for available channels before transmitting.  In other
words, if the
band is too crowded when you switch on your Tx, it may not begin
transmitting immediately.  So the chance of shooting somebody down remains
remote.  There is the mixing of brands issue, but regardless of manufacturer
they are all supposed to adhere to the 2.4 "rules".  I have learned during
my years working with machine controls (and operators) that nothing is
foolproof.  Just like our current system, as long as everybody plays by the
rules it works fine.

Brian

On Dec 26, 2007 3:18 AM, <GordySoar at aol.com> wrote:

>  Okay I expected the guesses and opinions and assurances.
>
> Let's take this one first:
> * But, seriously, are you expecting over 40 sailplanes to be in the air at
>
> one time at a typical club field? *
> **
> Those who posted this implied 'everything will be okay' rationale don't
> attend big events where the problem has never been a conflict of planes in
> the air, we have clips and impounds and channel assignments for those.  The
> guys who have 2.4 fell in love with them especially because they didn't
> "have to worry about pins, clips and impounds any more" . Now you can just
> pull up put your plane together, turn on and fly...even on Visalia Friday.
> There is a lot more than 50 guys with sailplanes wanting to fly, assemble,
> program etc on any given major contest day. On is on, regardless of if the
> models are in the air.
>
> ON means transmissions.  How is the CD gonna handle 2.4 count and amounts
> when their owners feel they are safe to turn on at any time?  Back to pins
> on this time they represent count instead of freq channel?  1 thru 39?
>
> The next one that I didn't see addressed is the 'mixing' part...what
> happens when you have Futa, Xtreme, Spectrum, Airtronics, and the Chinese
> show up together...regardless of numbers.
>
> Then there is this one:*  Ed asked :"Why don't you organize a test* *"*
> Why would I?  My hobby is to build and fly sailplanes, my job is to sell
> beach cleaners. Ed, why don't you ask the suppliers of 2.4 stuff to work
> for their pay?  Why haven't you? You post assurances and promote as if you
> have some cash interest in 2.4.  You repeat hearsay about a heli event
> with 500  pilots and then guess at how many TX's were turned on at the time,
> using it as some 'proof' that the deal is done.  Do you have a clue as to
> how much parking alone it would take to host 500 pilots?  I think before
> repeating that 'proof' you might want to investigate it instead of just
> repeating it.  I know the source, that doesn't make it valid.  Are you going
> to tell me that less than 40 guys had their TX's on all at once with 500 on
> the field?
>
> So far at best 2.4 sort of works, if the install is just right, if the
> models materials are cooperative and 'should' work fine with other 2.4systems..as long as their aren't too many TX's on at one time....but no one
> has come up with control system to protect against or even determine who
> will be turning on in the pits.
>
> So what's the skinny....how many of you realized that it is possible to be
> shot down with 2.4, that less than our current 50 TX's can be running at
> once and no one is too sure about how many of a mix of brand systems are
> safe?
>
> Was just wondering that's all :-)?
>
> Gordy
> Glenwood Springs Co
>
>
>
>
>
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