Return-Path: Received: from [65.54.168.117] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 656241 for flyrotary@lancaironline.net; Wed, 02 Feb 2005 18:13:48 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.168.117; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 2 Feb 2005 15:12:01 -0800 Message-ID: Received: from 4.171.150.9 by BAY3-DAV13.phx.gbl with DAV; Wed, 02 Feb 2005 23:11:52 +0000 X-Originating-IP: [4.171.150.9] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Disappointing Day Date: Wed, 2 Feb 2005 18:11:50 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_009D_01C50952.AA9AB100" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0009.2900 Seal-Send-Time: Wed, 2 Feb 2005 18:11:50 -0500 X-OriginalArrivalTime: 02 Feb 2005 23:12:01.0108 (UTC) FILETIME=[99D03140:01C5097C] This is a multi-part message in MIME format. ------=_NextPart_000_009D_01C50952.AA9AB100 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: = http://lancaironline.net/lists/flyrotary/List.html >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_009D_01C50952.AA9AB100 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
To clarify, I think it is noise, not necessarily the lack of = shielding=20 (although that may help).  The big factor here is the lack of a = well=20 defined and close-by ground system in plastic airplanes.  "Ground = bounce"=20 is one of the electronics engineer's worst nightmares.  This = is just=20 one of several possibilities for the source of the noise.
 
Tracy
No,=20 the manual doesn't specify shielded cables, but lack of shielding = is
what=20 Tracy thinks is causing my data to get scrambled on the way from = the
panel=20 to the EC2 on the firewall.

> -----Original = Message-----
>=20 From: Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net]On
>=20 Behalf Of Steve Brooks
> Sent: Wednesday, February 02, 2005 4:18 = PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] = Re:=20 Disappointing Day
>
>
> Have you checked the graph = of MAP=20 values lately?
>
> Don't have that version of software, or = the=20 EM-2
>
> Where is your EC2 mounted?
> Cabin side of = the=20 firewall over the center spar.
>
> Do you have shielded = wire to=20 the control panel? no - I don't remember any
> requirement for=20 stranded.  If any were specified I would have
> used=20 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=20 the avionics.  I could be wrong
> though, it
> has = been a=20 while since I wired it.
>
>
> = Steve
>
>
>=20 >>  Homepage:  http://www.flyrotary.com/
> = >>  Archive:   http://lancai= ronline.net/lists/flyrotary/List.html


>> =20 Homepage:  http://www.flyrotary.com/
>&= gt; =20 Archive:   http://lancai= ronline.net/lists/flyrotary/List.html
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