sombra shdow 3

[Terry Terrenoire]

I guess I am missing something. The instructions for the one I have do
not involve the TX at all. All you do is plug in the synthesizer module ,
set to the freq you want to use, power the system up for a few seconds,
then remove the synthesizer. Are you telling us that once the TX is
turned on, the RX further tunes itself to match? If this is the case, I
am REALLY impressed!! 

At any rate, my new Sr. Falcon, Vintage, ARF, is scheduled for delivery
today. I have a project coming off the boards this weekend, so with a
little luck I should have the plane, and new Shadow 3 RX in the air next
weekend!

Terry T.

On Thu, 19 May 2005 20:36:17 -0500 "Steven Maxwell"
<patternrules at earthlink.net> writes:
> 1. The Tx signal recognition algorithm on the Rx analyzes the 
> transmitter
> characteristics, it identifies among other things the shift of the 
> Tx,
> number of channels, frame rate, etc. From here onwards only frames 
> matching
> these characteristics will be allowed to "graduate" to higher levels 
> of
> filtering. You can see this in action by performing this simple 
> experiment:
> Take two different Tx on the same frequency (e.g one 4ch. The other 
> 7ch.).
> Turn one Tx ON and let Shadow register it, now turn the first Tx OFF 
> and
> turn the second Tx ON, the second Tx commands will be rejected even 
> though
> it operates on the same frequency!. To register the second Tx, 
> Shadow will
> have to be power-cycled. We call this basic sanity or transmitter
> recognition and Level-1 filtering. 2. Every incoming baseband signal 
> is
> continuously sampled and digitized. Our custom and proprietary 
> digital
> signal processing algorithms are applied to baseband and valid 
> signals can
> be recovered and reconstituted even in extremely noisy environments. 
> We
> call this level-2 filtering. Once a frame is processed it is passed 
> to
> level-3 filtering. 3. In level-3, we do another set of tests that 
> qualify
> the frame further, e.g. the servo output signals in the frame, the 
> proper
> sync pulse of a PPM frame, the low and high-phases of each pulse, 
> etc. All
> of these have to pass a rigorous qualification test before the 
> signal is
> sent out on the servo pins.
> 
> 
> > [Original Message]
> > From: Terry Terrenoire <amad2terry at juno.com>
> > To: <patternrules at earthlink.net>
> > Cc: <discussion at nsrca.org>
> > Date: 5/19/2005 7:14:40 PM
> > Subject: Re: sombra shdow 3
> >
> > I have one on hand and will be putting it in a plane as soon as 
> it
> > arrives. All the ground check have been very promising, so far.
> > But, I don't see how it can give you any confidence that someone 
> else
> > will not turn on on your freq. if someone elseturns on on your 
> freq, you
> > will still lose! This is not the RX that tunes itself  JUST to 
> your TX.
> > This RX is programed by setting the channes on an auxilary 
> programmer
> > that plugs into the main RX.
> >
> > Terry T.
> >
> > On Thu, 19 May 2005 09:08:23 -0500 "Steven Maxwell"
> > <patternrules at earthlink.net> writes:
> > >  Has anyone used this receiver? One of my big fears, although 
> never 
> > > had it
> > > happen is to be shot down by a newbie not knowing about 
> frequency 
> > > control
> > > the last 2 years there was 6 newbie show up at my field on my 
> main
> > > frequency, I know I'm a little paranoid, but also in the last 2 
> 
> > > years have
> > > seen 3 planes shot down from someone not have the frequency pin 
> 
> > > luckly the
> > > plane lost all times was the guy that didn't have his pin, 
> anyhow 
> > > seems
> > > like this receiver would give me a little more peice of mind.
> > > 
> > > 
> > > Steven Maxwell
> > > patternrules at earthlink.net
> > > EarthLink Revolves Around You.
> > > 
> > > 
> > > 
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