---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 03/13/07: 19 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:16 AM - Re: Popped CB (Rodney Dunham) 2. 07:22 AM - Re: RF noise from EFIS (Mike) 3. 07:58 AM - Re: RF noise from EFIS (N395V) 4. 09:02 AM - Re: RF noise from EFIS (N777TY) 5. 09:33 AM - wiring diagram benefits? (Erich_Weaver@URSCorp.com) 6. 09:59 AM - Re: wiring diagram benefits? (Dave N6030X) 7. 11:36 AM - Re: wiring diagram benefits? (Doug Windhorn) 8. 11:51 AM - Re: wiring diagram benefits? (Gilles Thesee) 9. 12:36 PM - Re: wiring diagram benefits? (LarryMcFarland) 10. 03:05 PM - Re: wiring diagram benefits (Erich_Weaver@URSCorp.com) 11. 03:59 PM - Re: Re: RF noise from EFIS (Robert L. Nuckolls, III) 12. 04:37 PM - Re: Re: wiring diagram benefits (Michael T. Ice) 13. 05:09 PM - Re: RF noise from EFIS (N777TY) 14. 05:59 PM - Re: Re: wiring diagram benefits (sarg314) 15. 06:03 PM - Comments please on this solid state contactor....... (Alex) 16. 06:38 PM - Re: Comments please on this solid state contactor....... (Robert L. Nuckolls, III) 17. 07:07 PM - Re: RF noise from EFIS (N395V) 18. 08:03 PM - Re: wiring diagram benefits? (Fiveonepw@aol.com) 19. 08:25 PM - Vertical power - Beta tester blog (Alan K. Adamson) ________________________________ Message 1 _____________________________________ Time: 04:16:21 AM PST US From: "Rodney Dunham" Subject: RE: AeroElectric-List: Popped CB Frank, I wired my SkyRanger/912UL via Z-16 also. It does the same thing. I just start the engine with the MASTER in the BAT position and then go to BAT/ALT after the engine is running, then turn on all loads. Shut-down is opposite sequence.* Bob, I didn't install a diode across the starter contactor coil but plan to. Will check next time I crank her up to see exactly when it happens and give you another data point. Rodney in Tennessee * I use the "5-M's" mnoemonic to remember shut-down sequence. ...Music - turn off all loads. ...Mags - check. ...Mixture - full lean (for the 912UL I just pull throttle to the idle stop). ...Mags - off. ...Master - off. _________________________________________________________________ Mortgage rates as low as 4.625% - Refinance $150,000 loan for $579 a month. Intro*Terms https://www2.nextag.com/goto.jsp?product=100000035&url=%2fst.jsp&tm=y&search=mortgage_text_links_88_h27f6&disc=y&vers=743&s=4056&p=5117 ________________________________ Message 2 _____________________________________ Time: 07:22:20 AM PST US From: "Mike" Subject: RE: AeroElectric-List: RF noise from EFIS Radio, What kind of EFIS? Not all EFIS systems are created equal! I would bet that you have a BMA system! If so, I have worked with a few customers with similar problems. The only thing that helped was to incorporate shielded wires (which BMA doesn't like to use) and move the antenna away from the main processor. The BMA stuff makes an unacceptable amount of RF noise. One of the many reasons they will never get a TSO. Mike -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of N777TY Sent: Monday, March 12, 2007 3:34 PM Subject: AeroElectric-List: RF noise from EFIS Trying to figure out a problem I'm running into where an EFIS screen seems to be putting RF noise into my radio. The noise seems "small" -- as in it can't be heard if there's a strong signal being received, but can be heard if there's no transmission or as background while receiving poor signal. It never breaks the squelch on the radio at all, so it can only be heard if I pull the squelch button on my SL-40. noise goes away if antenna is disconnected, in which case all I can hear is normal radio static. noise can be heard if rubber ducky antenna is connected instead of the Comant antenna (so I'm not sure it's my real antenna installation at issue here, but could be?) Due to the setup I have, I can hook this antenna right behind the radio, or at the end of the coax run.. didn't notice any difference between the two. Tried Radio Shack ferrite choke at various locations and it didn't seem to do anything. Tried some RS in-line choke (in-line with radio +, as well as EFIS + and ground) which also didn't do anything either. coax doesn't run close to the EFIS screen, and for the most part, it's not close to other wires. I have a 2-screen setup and both (and either) produce this noise... have not tried transmitting, so no idea what kind of impact it'd have (if any) on outgoing transmissions.. focused on reception at this point. again, since it doesn't break the squelch, it's not a big big issue, but it's annoying and would love to see it go away :) any thoughts? Thanks! Radomir -------- RV-7A N777TY (res) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=100146#100146 -- 2/8/2007 -- 2/8/2007 ________________________________ Message 3 _____________________________________ Time: 07:58:50 AM PST US Subject: AeroElectric-List: Re: RF noise from EFIS From: "N395V" It affects the BMA Sport and Lites as well and is worse in composites than metal planes. Actually BMA encourages the use of shielded wires for anything running out of the EFIS. As mentioned above you should avoid if possible running any EFIS wiring near your antenna lines. Also the can around the EFIS is not necessarily connected to the ground of the circuit boards so the can itself should be grounded as well as the EFIS. Look for any wires from the EFIS that terminate in a dead end ( are not connected to anything) and eliminate them they are acting as a transmit antenna. Likely culprits are ap disconnect wires on the stick running next to your PTT and engine monitoring circuits not yet hooked up. The shield on sheilded cable should be grounded at both ends. If you are not using a serial port turn it off. Hopefully you can reduce the noise to a level where it can be overcome with the squelch setting as noted above. -------- Milt N395V F1 Rocket www.excaliburaviation.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=100281#100281 ________________________________ Message 4 _____________________________________ Time: 09:02:49 AM PST US Subject: AeroElectric-List: Re: RF noise from EFIS From: "N777TY" Thanks guys.. just to clarify a few points: 1) It's not BMA... it's GRT. 2) It doesn't need squelch adjustment -- it never breaks the squelch.. doesn't even come close to that. 3) It doesn't affect normal transmissions -- those are recieved 5 by 5.. radio does a great job of getting rid of all that noise when good transmission is received. 4) coax doesn't run close to any efis wires.. I ended up reviewing BMA message boards, and what I can see there is that BMA guys are A LOT more affected than I am... I don't have symptoms they're describing where increasing squelch takes care of the noise... Thanks again! Radomir -------- RV-7A N777TY (res) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=100293#100293 ________________________________ Message 5 _____________________________________ Time: 09:33:56 AM PST US Subject: AeroElectric-List: wiring diagram benefits? From: Erich_Weaver@URSCorp.com I may be asking for a beating here, but exactly why should I create detailed wiring diagrams? I wired my RV-7A myself following the Z-13/8 schematic, and have relatively easy access to all my electrical compone nts. All wires are labeled on both ends, indicating where they came from and where they are going to. I probably should have sketched out the wirin g diagrams as I completed routing each wire, but it can still be done now without too much trouble since my forward top skin is still off. Ok, I admit to a touch of laziness here, which is enhanced by a growing anticipation of the first engine start and flight, but I am having difficulty describing to my self exactly what future scenario makes tha t wiring book a must have. Go ahead and set me straight. Or hey, feel free to tell me "never did it, never needed it" as well. regards erich weaver ________________________________ Message 6 _____________________________________ Time: 09:59:04 AM PST US From: Dave N6030X Subject: Re: AeroElectric-List: wiring diagram benefits? It's not for your benefit right now. It's for your benefit in 3 years when you scratch your head and wonder what the heck you did this or that for, and for the next guy who buys your plane and has no idea what you were thinking. Same reason programmers add comments to their software. You should see the undocumented mess I inherited under my panel. The only way I'll ever figure it out is to take it all apart and put it back together again. And that will take about a week of effort. Document it now, and generations that follow will thank you. Dave Morris At 11:33 AM 3/13/2007, you wrote: >I may be asking for a beating here, but exactly why should I create >detailed wiring diagrams? I wired my RV-7A myself following the >Z-13/8 schematic, and have relatively easy access to all my >electrical components. All wires are labeled on both ends, >indicating where they came from and where they are going to. I >probably should have sketched out the wiring diagrams as I completed >routing each wire, but it can still be done now without too much >trouble since my forward top skin is still off. Ok, I admit to a >touch of laziness here, which is enhanced by a growing anticipation >of the first engine start and flight, but I am having difficulty >describing to my self exactly what future scenario makes that wiring >book a must have. > >Go ahead and set me straight. Or hey, feel free to tell me "never >did it, never needed it" as well. > >regards > >erich weaver > ________________________________ Message 7 _____________________________________ Time: 11:36:46 AM PST US From: "Doug Windhorn" Subject: Re: AeroElectric-List: wiring diagram benefits? Erich, Food for thought: If you need your leading edge open now to trace the wiring, think about where you will be when you close the leading edge, then a year from now, and 5-years from now. If you cannot draw your wiring diagram now without even looking at the wiring - don't you think you will be in trouble down the road? Labeling the wires will help, but there is nothing like a good diagram to help in understanding an airplane's electrics. To save time now - and to make for a winter time project, draw your diagrams in pencil now and make nice ones for permanent documentation later. You could start with Bob's Z diagram and add the various label names you used on your wires (specially if you used abbreviations), along with wire gauge, color, etc. Also, be sure to add any connectors with the pin number. Consider adding manufacturer & part numbers for replacement purposes. Those electrical diagrams you do now may be worth $$$ down the road. Consider that I, and probably others, would not even consider buying a plane without thorough documentation, unless it was at a "bargain" price. Doug Windhorn ----- Original Message ----- From: Erich_Weaver@URSCorp.com To: aeroelectric-list@matronics.com Sent: Tuesday, 13 March, 2007 9:33 Subject: AeroElectric-List: wiring diagram benefits? I may be asking for a beating here, but exactly why should I create detailed wiring diagrams? I wired my RV-7A myself following the Z-13/8 schematic, and have relatively easy access to all my electrical components. All wires are labeled on both ends, indicating where they came from and where they are going to. I probably should have sketched out the wiring diagrams as I completed routing each wire, but it can still be done now without too much trouble since my forward top skin is still off. Ok, I admit to a touch of laziness here, which is enhanced by a growing anticipation of the first engine start and flight, but I am having difficulty describing to my self exactly what future scenario makes that wiring book a must have. Go ahead and set me straight. Or hey, feel free to tell me "never did it, never needed it" as well. regards erich weaver ________________________________ Message 8 _____________________________________ Time: 11:51:40 AM PST US From: Gilles Thesee Subject: Re: AeroElectric-List: wiring diagram benefits? Dave N6030X a crit : > > > It's not for your benefit right now. It's for your benefit in 3 years > when you scratch your head and wonder what the heck you did this or > that for, and for the next guy who buys your plane and has no idea > what you were thinking. And what if one piece of equipment doesn't work as expected (things sometimes happen), and you don't have a proper diagram to reflect on ? I did a one page per system wire book, and took time to update it after every change I made, and wiring and troubleshooting proved a breeze. Troubleshooting ? Yes I experienced troubles with off-the-shelf equipment (not my wiring), and had to pinpoint the cause. And when isolating a circuit during maintenance, I refer to my book, because wiring was 4 years ago now, and things fade away in my mind. So, I did, and I'm happy I did. Regards, Gilles http://contrails.free.fr ________________________________ Message 9 _____________________________________ Time: 12:36:01 PM PST US From: LarryMcFarland Subject: Re: AeroElectric-List: wiring diagram benefits? Hi Erich, You need a wiring diagram if only to keep notes of how things are and after you're gone, the next owner needs some hint of where you put things. I did a wiring diagram because there are just too many things to remember only 3 years after the fact. Nice to know what bundle of wires to look to when things go down. Saved me on two occasions so far. Modifications also require some idea of how you're loaded before the fact, so if nothing else, do a simple one. See link and modify them to suit you if you want. http://www.macsmachine.com/images/electrical/full/primary-wiring.gif http://www.macsmachine.com/images/electrical/small/primary-wiring-(SH-2).gif http://www.macsmachine.com/images/electrical/full/primary-wiring-(SH-3).gif Larry McFarland at www.macsmachine.com Erich_Weaver@URSCorp.com wrote: > > I may be asking for a beating here, but exactly why should I create > detailed wiring diagrams? I wired my RV-7A myself following the Z-13/8 > schematic, and have relatively easy access to all my electrical > components. All wires are labeled on both ends, indicating where they > came from and where they are going to. I probably should have sketched > out the wiring diagrams as I completed routing each wire, but it can > still be done now without too much trouble since my forward top skin > is still off. Ok, I admit to a touch of laziness here, which is > enhanced by a growing anticipation of the first engine start and > flight, but I am having difficulty describing to my self exactly what > future scenario makes that wiring book a must have. > > Go ahead and set me straight. Or hey, feel free to tell me "never did > it, never needed it" as well. > > regards > > erich weaver > ________________________________ Message 10 ____________________________________ Time: 03:05:13 PM PST US Subject: AeroElectric-List: re: wiring diagram benefits From: Erich_Weaver@URSCorp.com Thanks for the input on this guys. I remain open to what you are sayin g, but indulge my hard headedness for a minute longer. I readily admit th at I will quickly forget details of my electrical system in the near future. However..... It seems to me that the wiring diagrams chief benefit is for mulling th ings over from the convenience of your own living room. If I start messing with my electrical system its likely to be because something isnt working, a nd this will require me to gain access to the various components of the electrical system. The hidden components of my electrical system (AHRS box , fuseholders, wig-wag flasher, voltage regulator, etc) are relatively easily accessible and if any of these are not easily identified by loo ks alone, they are labeled. Every wire coming from such components is lab eled with respect to exactly where it is coming from and where it is going t o. Therefore, I will be able to check that the electrical connections are sound at both ends of every wire segment. I will also be able to check that the wires go to the right connection point on each component by comparing my connections with what is presented in the manufacturer's documentation, which I have carefully cataloged in my building binders. I can further check that components are actually connected as labeled wit h a continuity tester. In short, it seems to me that most of the truly valuable information on my electrical system can be gained from the schematic and when necessary f or repairs, visual inspection/testing of the individual components and at their electrical connection points. The actual route the wires take between components seems almost irrelevant to me. I am not terribly persuaded by arguments of some perceived future value to future buyers of my plane. First, Im not sure I buy the argument that my plane will be worth less. The phrase "Comprehensive wiring diagrams available" doesnt seem to show up much in adds for experimentals. And f or those buyers that have the desire/need to know my electrical system, I still think the schematic and good labelling practices I have adhered t o, along with manufacturers' documentation provide a solid basis for diagnosing and resolving problems. Okay, I can already see the aero-electric masses collectively shaking t heir heads back and forth at me. Nomex flame suit donned. Fire away. Concrete examples of how your wiring diagrams saved the day, and conversely, how my annotated Z-13/8 schematic and comprehensive compone nt and wire labeling are woefully inadequate will be enthusiastically received. Just between us girls, I'll bet there are more than a few out there wit h virtually no electrical documentation combined with complete ignorance of their system. They may even be conspiring to sell these planes to othe rs! : ) ________________________________ Message 11 ____________________________________ Time: 03:59:47 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: RF noise from EFIS At 07:56 AM 3/13/2007 -0700, you wrote: > >It affects the BMA Sport and Lites as well and is worse in composites than >metal planes. > >Actually BMA encourages the use of shielded wires for anything running out >of the EFIS. Which suggests a profound lack of knowledge as to how noises should be kept inside the product . . . >As mentioned above you should avoid if possible running any EFIS wiring >near your antenna lines. Antenna lines are coaxial transmission lines and not vulnerable to ingress of noises . . . >Also the can around the EFIS is not necessarily connected to the ground of >the circuit boards so the can itself should be grounded as well as the EFIS. "ground" is an un-quantified, un-qualified term term when it comes to taming the noises emitted from an accessory. Spent the whole day in the lab today "sniffing" the noise performance of an airborne super-server that's destined to share volume within an airplane with lots of VERY sensitive spook receivers. Anyone who pushes their noise containment duties off on the installer by suggesting broad brush admonitions to shield everything and keep stuff away from coaxes doesn't have a clue . . . >Look for any wires from the EFIS that terminate in a dead end ( are not >connected to anything) and eliminate them they are acting as a transmit >antenna. Likely culprits are ap disconnect wires on the stick running next >to your PTT and engine monitoring circuits not yet hooked up. > >The shield on sheilded cable should be grounded at both ends. > > >If you are not using a serial port turn it off. Let's do some detective work and see if the real leak can be identified before you start shot-gunning with hopeful remedies. What radio is being affected? Know that most of the glass dial noise problems radiate from the opening covered by the LCD. What does the "noise" sound like? How is the noise affected by positioning various controls of the victim radio? Bob . . . ---------------------------------------- ( IF one aspires to be "world class", ) ( what ever you do must be exercised ) ( EVERY day . . . ) ( R. L. Nuckolls III ) ---------------------------------------- ________________________________ Message 12 ____________________________________ Time: 04:37:24 PM PST US From: "Michael T. Ice" Subject: Re: AeroElectric-List: re: wiring diagram benefits Erich, I can see both sides of this issue and they are both right. Roll your own. I am going the simplified route myself. I like the Z-11 as a basic and I have added a few extras. I am amazed though at the detail some folks put into their wire diagrams and web sites. You people are absolutely gifted. Where do you find the time to do all of that and build an airplane? I don't think I will ever sell my airplane but if I did it seems these planes sell themselves. Mike Ice RV-9 (yep! Little wheel in the back) Electrical done, canopy in progress (on and off the fuselage a zillion times) ----- Original Message ----- From: Erich_Weaver@URSCorp.com To: aeroelectric-list@matronics.com Sent: Tuesday, March 13, 2007 2:04 PM Subject: AeroElectric-List: re: wiring diagram benefits Thanks for the input on this guys. I remain open to what you are saying, but indulge my hard headedness for a minute longer. I readily admit that I will quickly forget details of my electrical system in the near future. However..... It seems to me that the wiring diagrams chief benefit is for mulling things over from the convenience of your own living room. If I start messing with my electrical system its likely to be because something isnt working, and this will require me to gain access to the various components of the electrical system. The hidden components of my electrical system (AHRS box , fuseholders, wig-wag flasher, voltage regulator, etc) are relatively easily accessible and if any of these are not easily identified by looks alone, they are labeled. Every wire coming from such components is labeled with respect to exactly where it is coming from and where it is going to. Therefore, I will be able to check that the electrical connections are sound at both ends of every wire segment. I will also be able to check that the wires go to the right connection point on each component by comparing my connections with what is presented in the manufacturer's documentation, which I have carefully cataloged in my building binders. I can further check that components are actually connected as labeled with a continuity tester. In short, it seems to me that most of the truly valuable information on my electrical system can be gained from the schematic and when necessary for repairs, visual inspection/testing of the individual components and at their electrical connection points. The actual route the wires take between components seems almost irrelevant to me. I am not terribly persuaded by arguments of some perceived future value to future buyers of my plane. First, Im not sure I buy the argument that my plane will be worth less. The phrase "Comprehensive wiring diagrams available" doesnt seem to show up much in adds for experimentals. And for those buyers that have the desire/need to know my electrical system, I still think the schematic and good labelling practices I have adhered to, along with manufacturers' documentation provide a solid basis for diagnosing and resolving problems. Okay, I can already see the aero-electric masses collectively shaking their heads back and forth at me. Nomex flame suit donned. Fire away. Concrete examples of how your wiring diagrams saved the day, and conversely, how my annotated Z-13/8 schematic and comprehensive component and wire labeling are woefully inadequate will be enthusiastically received. Just between us girls, I'll bet there are more than a few out there with virtually no electrical documentation combined with complete ignorance of their system. They may even be conspiring to sell these planes to others! : ) ________________________________ Message 13 ____________________________________ Time: 05:09:55 PM PST US Subject: AeroElectric-List: Re: RF noise from EFIS From: "N777TY" Bob, It may be hard to describe the noise, so I figured a video may help :) Here's a 1-minute video of my sniffing around with a handheld scanner (squelch turned down completely): http://www.vitez.net/noise.wmv You'll notice a few spots where there's no noise and you just hear regular radio static.. Maybe ignore that weird noise when scanner is under the panel, as I don't hear it like that in my panel radio. The radio is Garmin SL-40. Not sure what you mean by positioning of controls.. Also, the radio (well, both SL-40 and handheld) does a great job of "killing" the noise when it receives even a semi-decent transmission.. so this noise doesn't actually affect reception, except for very, very weak ones (where the noise can just about barely be heard in the background). However, it sounds horrible (and loud) when there's no transmission and squelch is pulled. Again, it never breaks the squelch... So, push the squelch and you'll probably never hear it (or barely ever notice it's there).. but I'm looking for "perfection" here :) The radio has this mode where it shows the signal level, and for RF level it shows around 18 when screens are off.. then jumps to about 40 when screens are turned on.... Not sure what these numbers exactly mean or what units those are.. but there's definitely a difference. (this is with no transmissions being received). Not sure if I mentioned this -- all these units are grounded on the firewall at a common grounding block. Tried grounding locally on the panel (both radio and screens as well as screens alone) and that didn't make any difference. One thing I haven't tried yet is transmitting -- not sure if there's any affect on clarity or strength of outgoing transmissions.. Any ideas are appreciated. Or am I getting worked up about nothing? Thanks! Radomir -------- RV-7A N777TY (res) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=100373#100373 ________________________________ Message 14 ____________________________________ Time: 05:59:32 PM PST US From: sarg314 Subject: Re: AeroElectric-List: re: wiring diagram benefits I drew a wiring diagram first because I wouldn't know how to wire it if I didn't (basically a Z-11). Every signal has a name, every wire is labeled. As one who has successfully used automotive wiring diagrams (and other schematics), I'm sure the diagram will save trouble shooting time down the road. It will influence a future buyer IF the guy is like me. A lot of us builders are nerd-geek-techies who think this stuff is important. -- Tom Sargent, RV-6A, in the act of wiring, no less. ________________________________ Message 15 ____________________________________ Time: 06:03:51 PM PST US From: "Alex" Subject: AeroElectric-List: Comments please on this solid state contactor....... I have been testing my electrical system on my all- electric Velocity- with no load, only the coils energized for about 30 minutes my battery contactors were both quite hot- too hot to hold for more than say 5 seconds- comments from other builders agree that this is rather normal- someone suggested the "Czonka III" solid state unit- uses no appreciable power- good for tens of thousands of cycles at 200 amps- please see attached PDF- is there any foreseen drawback other than cost? Alex ________________________________ Message 16 ____________________________________ Time: 06:38:00 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Comments please on this solid state contactor....... At 07:35 PM 3/13/2007 -0500, you wrote: >I have been testing my electrical system on my all- electric Velocity- with >no load, only the coils energized for about 30 minutes my battery contactors >were both quite hot- too hot to hold for more than say 5 seconds- comments >from other builders agree that this is rather normal- someone suggested the >"Czonka III" solid state unit- uses no appreciable power- good for tens of >thousands of cycles at 200 amps- please see attached PDF- is there any >foreseen drawback other than cost? None . . . but keep in mind that the "too hot to touch" contactors have been used for about 70 years with good return on investment. The "solid state" units have circuitry that drops coil current from an initial, full power pull-in current to some nominal holding current after a second or so. Problem with some devices is that the duty-cycle power controller generates noise in some systems. Further, it's unknown whether the circuitry as-supplied would live happily in known (DO-160) world of stresses. I'm not suggesting that it won't . . . just don't know. The continuous duty contactor dissipates about 10 watts. Sufficient power to raise the surface temperature to about 170F in a room temperature environment. See: http://www.aeroelectric.com/Pictures/Contactors/Battery_Contactor_Temps_1.jpg http://www.aeroelectric.com/Pictures/Contactors/Battery_Contactor_Temps_2.jpg This 'seems' hot but all of the materials used to fabricate the contactor are rated at 150C or better. It's no big deal in the grand scheme of things and it's hard to beat the price. Bob . . . ---------------------------------------- ( IF one aspires to be "world class", ) ( what ever you do must be exercised ) ( EVERY day . . . ) ( R. L. Nuckolls III ) ---------------------------------------- ________________________________ Message 17 ____________________________________ Time: 07:07:19 PM PST US Subject: AeroElectric-List: Re: RF noise from EFIS From: "N395V" > Which suggests a profound lack of knowledge as > to how noises should be kept inside the product You just can't resist a dig at Greg can you? Now I know why so many others think you are an asshole. Do not archive. -------- Milt N395V F1 Rocket www.excaliburaviation.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=100393#100393 ________________________________ Message 18 ____________________________________ Time: 08:03:28 PM PST US From: Fiveonepw@aol.com Subject: Re: AeroElectric-List: wiring diagram benefits? In a message dated 03/13/2007 11:36:15 AM Central Daylight Time, Erich_Weaver@URSCorp.com writes: "never did it, never needed it" ...until you do and didn't! If you did a good job on the design & install, you likely never will need it, but 5 years from now, wouldn't it be handy to know what ya got when you go to upgrade to that spiffy new holographic cockpit? Mark- RV-6A N51PW "Mojo", former industrial 'lectrician, confirmed Nuckollhead, and pretty anal when it comes to wiring diagrams, but YMMV, natcherly! _http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=7604_ (http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=7604) fer example


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AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ Message 19 ____________________________________ Time: 08:25:05 PM PST US From: "Alan K. Adamson" Subject: AeroElectric-List: Vertical power - Beta tester blog I've started a Blog of my testing activities around the Vertical Power VP-200 Duo going into my Lancair Legacy. Feel free to check in from time to time. If you have an RSS reader, there is both an RSS and an ATOM version of the blog. http://legacyair.blogspot.com Short version - Dual buss - Dual Alt - 24V - EFIS panel - VP-200 Duo - MVP-50 Engine monitor - utilizing the 4 channels of Overrides on the VP-200 - plus all the normal amazing features - going into a Lancair Legacy FG with IO-550 Also includes a few "requested features" - being a real beta tester :) - Automatic canopy seal - Remote based, electronic Canopy lock - Mac servo actuated RamAir Enjoy and let me know what you think as I progress along. Wiring should start in earnest next week. Alan ------------------------------------------------------------------------------------- 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.