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To clarify, I think it is noise, not necessarily the lack of shielding
(although that may help). The big factor here is the lack of a well
defined and close-by ground system in plastic airplanes. "Ground bounce"
is one of the electronics engineer's worst nightmares. This is just
one of several possibilities for the source of the noise.
Tracy
No,
the manual doesn't specify shielded cables, but lack of shielding is
what
Tracy thinks is causing my data to get scrambled on the way from the
panel
to the EC2 on the firewall.
> -----Original Message-----
>
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
>
Behalf Of Steve Brooks
> Sent: Wednesday, February 02, 2005 4:18
PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re:
Disappointing Day
>
>
> Have you checked the graph of MAP
values lately?
>
> Don't have that version of software, or the
EM-2
>
> Where is your EC2 mounted?
> Cabin side of the
firewall over the center spar.
>
> Do you have shielded wire to
the control panel? no - I don't remember any
> requirement for
stranded. If any were specified I would have
> used
stranded,
> but I don't recall any. I have several runs of
shielded wire in
> the plane,
> but I think that they are all in
the avionics. I could be wrong
> though, it
> has been a
while since I wired it.
>
>
> Steve
>
>
>
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