receiver antenna placement

[Gray E Fowler]

Wayne' interference was dramatic on the ground, mine was very subtle...one 
PCM hold per 3-4 flights. Not alot of testing done here. Kinda hard to say 
"lets do this to see if we get interfernece in the air-crunch....well don't do that 
anymore".



Gray Fowler
Principal Chemical Engineer
Composites Engineering




"Wayne Galligan" <wgalligan at goodsonacura.com>
Sent by: discussion-request at nsrca.org
02/24/2004 10:40 AM
Please respond to discussion

 
        To:     <discussion at nsrca.org>
        cc: 
        Subject:        Re: receiver antenna placement


I am using Futaba and Gray uses Airtronics.

Maybe its this government grade high purity c.f. stuff my plane is made 
of.

WG

----- Original Message ----- 
From: "Brian Young" <b4598070 at yahoo.com>
To: <discussion at nsrca.org>
Sent: Tuesday, February 24, 2004 10:37 AM
Subject: Re: receiver antenna placement


> You guys Running JR or Futaba?
> 
> Maybe thats the answer.............
> 
> --- Wayne Galligan <wgalligan at goodsonacura.com> wrote:
> > I too have an outty.  My last ship had wire
> > pull/pull everything in a c.f. fuse and I had
> > nothing but glitching when the antenna was close to
> > the fuse.  Had to run the antenna out to the wing
> > tip.  Next fuse same type airplane I used a MK
> > pushrod and no problems. Perhaps the wire pull
> > cables and c.f. combination where suspect.   Are
> > there any E.E.'s out there that could explain this
> > phenomenon?
> > 
> > Wayne G.
> >   ----- Original Message ----- 
> >   From: Gray E Fowler 
> >   To: discussion at nsrca.org 
> >   Sent: Tuesday, February 24, 2004 10:07 AM
> >   Subject: Re: receiver antenna placement
> > 
> > 
> > 
> >   Vicente 
> > 
> >   I too run my antennas outside as my Aries is 100%
> > carbon fiber.  I had in the past on a CF fuse
> > experienced failsafe holds until I ran the antenna
> > outside...Now the question is in my case and
> > yours...at some time that fuse, that pushrod or
> > those pull-pull cables are between you  and the
> > antenna...why no failsafe here? 
> > 
> >   Also I have no trust in any Electrical Engineer,
> > convinced that their expertise is nothing but smoke
> > and mirrors designed to fool the mangement types,
> > which is fairly easy to do. Why such an attitude?
> > Because here at the Raytheon Antenna Department
> > where I work , My EE's told me after running
> > calculations that I would not have any interference
> > problems- but I did. Regardless of all the missiles
> > we make that have struck their intended targets, the
> > EE's failed me in their most critical
> > challenge....Can I run my RC antenna at 72 mHz
> > inside my toy plane???? 
> > 
> >   I endure the scoffing at my "outty" antenna to
> > enjoy a much stiffer plane.  I am of the opinion
> > that an outty antenna is much more appealing than
> > all those guys that have fuel tubing on the exterior
> > of the plane! That is the true crime!  At least all
> > my fuel tubing is hidden...
> > 
> > 
> > 
> >   Gray Fowler
> >   Principal Chemical Engineer
> >   Composites Engineering 
> > 
> > 
> >        vicenterc at comcast.net 
> >         Sent by: discussion-request at nsrca.org 
> >         02/24/2004 09:49 AM 
> >         Please respond to discussion 
> > 
> > 
> >                 To:        discussion at nsrca.org 
> >                 cc:        "Del K. Rykert"
> > <drykert at rochester.rr.com>, <discussion at nsrca.org> 
> >                 Subject:        Re: receiver antenna
> > placement 
> > 
> > 
> > 
> >   I guess that I am not a real pattern pilot.  I
> > have to run the antennas outside.  I have a Hydeout
> > and a Focus.  Both use steel wire for rudder and
> > elevator.  The Focus has a carbon rod for the
> > elevator.  In both planes and certain conditions
> > (example: slow roll when the antenna gets behind the
> > steel cables) the radio has been going safe-fail for
> > slit second.  The only cure after sending radio and
> > receiver for tuning was to run the antenna outside.
> > 
> >   After having this experience, I am not confident
> > to run antennas inside my planes.  I know that there
> > is a very high percentage of pattern pilots that run
> > the antenna inside.  Probably I am doing something
> > wrong in the installation and I haven't been able to
> > figure it out. 
> > 
> >   Vicente Bortone
> > 
> >   =====================================
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> >   #
> > 
> > 
> > 
> > 
> 
> 
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