Steve Kaluf's employment at AMA was terminated last August. They are currently 
seeking a new Technical Director per their Now Hiring area but the ad states 
they wanted applications no later than Sept 28th. Not sure if they have a 
replacement yet.





Mark Miller

----- Original Message ----
From: Rob Davis <[EMAIL PROTECTED]>
To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
Cc: [email protected]
Sent: Thursday, December 27, 2007 1:22:32 AM
Subject: Re: [RCSE] "Jack Benny is 39 and 2.4 is 38?" Thanks for the 
'assurances and guesses!"


I would expect the spektrum limit and what happens when the "channels" are 
occupied was addressed to the AMA's satisfaction.  Perhaps asking Steve Kaluf 
is in order.  He's the AMA tech guy.

 

Rob



On Dec 26, 2007 9:20 PM, Kevin O'Dell <[EMAIL PROTECTED]> wrote:






Begin forwarded message:


basically.......the mixing systems shouldn't be any issue.  The Futaba systems 
represent momentary narrow band emissions and as such will not interfere with 
the Direct Sequence system used by JR/Spektrum.....when you get 39 JR/Spektrum 
radios on at the same time, then number 40 will not be able to achieve a lock 
with the receiver.....that one won't be able to fly till one of the other ones 
is turned off...none of the other ones currently on will be affected by the 
40th one......the Futaba and JR systems use VERY different Spread Spectrum 
systems.......the Futaba frequency hopping system basically uses a narrow band 
signal but change the frequency across a wide spectrum......the JR/Spektrum 
Direct Sequence system literally spreads the data packets across a wide 
spectrum.....the great part about this is when the receiver puts all of this 
back together.....the direct sequence system reduces the background 
interference to a minimum...... 



Kevin O'Dell













      
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