X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2055205 for flyrotary@lancaironline.net; Sun, 20 May 2007 12:24:54 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id l4KGNdUN008864 for ; Sun, 20 May 2007 12:23:39 -0400 (EDT) Message-ID: <00b901c79afb$79d094d0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Frustration update Date: Sun, 20 May 2007 12:25:26 -0400 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine Found this chart, Buly. If I interpret it correctly and you have more than 30 feet length of shielded cable, it would appear to distort the injector pulse sufficient for it to need reshaping. However, I presume you don't have more than a few feet - so this may not be the problem - it really depends a lot of the capacitance to the particular shield cable you used. Ed Justified signal processing Waveform Maximum Reshaping transmission required Sine wave < 5 ft. not required TTL Square wave (single ended) < 30 ft. > 30 ft. TTL Square wave (complementary) < 50 ft. > 50 ft. TTL Square wave same as TTL complementary (open collector) except greater noise immunity Line Driver (differential) > 50 ft. not required Amplified analog (complementary) < 30 ft. > 30 ft. Pulse < 20 ft. not feasible If signal cables are long, the signal can require reshaping to ensure its reliability. Assuming quality cable is used, listed here are rough breakpoints at which additional processing is required. ----- Original Message ----- From: "Bulent Aliev" To: "Rotary motors in aircraft" Sent: Friday, May 18, 2007 6:32 AM Subject: [FlyRotary] Re: Frustration update > My coils are the LS-1 Bob, but the coils tested fine. Just the injectors > are dead when the whole thing is plugged? > Buly > > On May 17, 2007, at 11:45 PM, Bob White wrote: > >> Hi Buly, >> >> I'm really disappointed. I was hoping it would fire right up. BTY, >> do you have LS-1 coils. That's what my unit is programmed for. >> >> Bob W. >> >> On Thu, 17 May 2007 21:41:49 -0400 >> Bulent Aliev wrote: >> >>> Today I received Bob White's EC and that helped clear Tracy's update >>> from being the problem. Did ring all the pins between the EC plug and >>> control panel. Everything checked OK. Did ring all the pins to the >>> crank angle sensor. All OK. Checked all ground pins for a 10th time, >>> all OK. Headed home in disgust. I'll keep pocking until I stumble on >>> something? >>> >>> >>> Buly >>> >>> >>> >>> >>> >>> >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: http://mail.lancaironline.net:81/lists/ >>> flyrotary/List.html >> >> >> -- >> N93BD - Rotary Powered BD-4 - http://www.bob-white.com >> 3.8 Hours Total Time and holding >> Cables for your rotary installation - http://www.roblinphoto.com/shop/ >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/ >> flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html