---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 02/09/07: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:54 AM - Rotax Rectifier Wiring (Martin Pohl) 2. 08:28 AM - Re: Antenna Polarity?? (Mike) 3. 08:38 AM - Re: Rotax Rectifier Wiring (Gaye and Vaughn) 4. 01:42 PM - Re: tail mounted camera (C Smith) ________________________________ Message 1 _____________________________________ Time: 06:54:56 AM PST US Subject: AeroElectric-List: Rotax Rectifier Wiring From: "Martin Pohl" Hello The Rotax-Installation Manual, engine electric, 17-1, says: "Attention: Do not interupt circuit between Terminal C and +B of rectifier-regulator during engine run, as otherwise charging will stop." What does that mean? Can I switch of the rectifier/regulator i.e. charging process with interupt of C/+B (similar to switching of the alternator field switch)? Martin Zodiac XL -------- Martin Pohl Zodiac XL QBK 8645 Jona, Switzerland www.pohltec.ch/ZodiacXL Read this topic online here: http://forums.matronics.com/viewtopic.php?p=93916#93916 ________________________________ Message 2 _____________________________________ Time: 08:28:22 AM PST US From: "Mike" Subject: RE: AeroElectric-List: Antenna Polarity?? Bill, I have the same setup in my Lancair Legacy and it works perfectly. I put a ramp test set on it in the aircraft when I first certified and it past the db and sqitter test. I do remember that the antenna must be connected correctly. The connections are not interchangeable. Mike L Lancair Legacy Kitfox IV TS-11 Iskra A-320 -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Bill Bradburry Sent: Thursday, February 08, 2007 6:43 AM Subject: AeroElectric-List: Antenna Polarity?? OK, here is an update... This plane is a Lancair Legacy, so I got in touch with the Lancair avionics department. They were able to help me to the point where I was able to determine which on the two screws should be attached to the center conductor and which to the shield. So, initial polarization question/problem solved. However,... I noticed in their parts catalog that this antenna is designed (as Bob remarked) for install in a metal aircraft (Vans RV ??) However,... This antenna was glassed in by the Lancair factory when the wing parts were built, so it was provided by Lancair???? DUH! WHY?? The avionics guy I talked with assured me that the antenna works fine in the Legacy.... I assume that if I can figure out some way to get the SWR checked on the antenna and if the SWR is below 2.0, it will work ok?? Thanks for the assistance. Bill B Time: 04:28:27 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Antenna Polarity?? At 06:33 PM 2/6/2007 -0500, you wrote: > > > > > >Hmmm...I don't think that I made myself clear. This antenna is glassed in > >the end of the fiberglas wing. It is not connected to anything. From the > >antenna's perspective, it is floating in space. I am attempting to attach > >the coax to the antenna. All I have available are the two screws sticking > >up to attach the coax. Is there any way that I can determine which of the > >two screws should have the center conductor and which should have the shield? Hmmmm . . . that antenna was designed to work against metalic structure of a metal wing for "ground". Is there even a metal sheet over the tip closeout rib? If there's no metal used to provide the other "half" of the antenna, then you're going to realize only a small fraction of the antenna's already compromised performance by tucking it under a tip fairing? How did this particular antenna find its way onto the airplane? It was originally designed for RVs and could probably be adapted to other metal wing aircraft with plastic tip fairings. Bob . . . -- 2/8/2007 -- 2/8/2007 ________________________________ Message 3 _____________________________________ Time: 08:38:11 AM PST US From: "Gaye and Vaughn" Subject: Re: AeroElectric-List: Rotax Rectifier Wiring Martin, Based on what I've heard from Europa builders before me, the regulater will destruct if you disconnect the "C" lead from the "B+" and "R" leads. It looks to me like drawing Z-16 would do that, although I am dangerously ignorant when it comes to electronics. I am waiting to speak to the Lockwood engineers before I proceed with my schematics. If I was you, I would not proceed until I fully understood the whats and whys of this issue. That is why I can sign off with..... Confused enough to consider selling the kit Vaughn ----- Original Message ----- From: "Martin Pohl" Sent: Friday, February 09, 2007 9:53 AM Subject: AeroElectric-List: Rotax Rectifier Wiring > > Hello > > The Rotax-Installation Manual, engine electric, 17-1, says: "Attention: Do > not interupt circuit between Terminal C and +B of rectifier-regulator > during engine run, as otherwise charging will stop." > > What does that mean? Can I switch of the rectifier/regulator i.e. charging > process with interupt of C/+B (similar to switching of the alternator > field switch)? > > Martin > Zodiac XL > > -------- > Martin Pohl > Zodiac XL QBK > 8645 Jona, Switzerland > www.pohltec.ch/ZodiacXL > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=93916#93916 > > > ________________________________ Message 4 _____________________________________ Time: 01:42:05 PM PST US From: "C Smith" Subject: RE: AeroElectric-List: tail mounted camera For those looking at cameras and in plane video recording etc, http://www.etronics.com/product.asp?stk_code=pyrmv7sc &svbname=683 has 9" pull down monitor for $115 and a 7.2" for $70. They also have a wide selection of various bullet/lipstick cams. I hope that now one considers this SPAM, I'm trying to help with a posters question. I'm not saying they have the lowest prices, You'll have to comparison shop on your own, but at first glance these 2 looked like a reasonable deal, and a good solution for those with special video airplane projects. It didn't look like they had a PDVR, but sometimes the categories things get placed under in retail vendors are a little tricky to figure, so do your own thorough search. Craig Smith ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.