---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 01/05/09: 14 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:29 AM - Re: Fuel pressure sender testing (Bill Schertz) 2. 08:48 AM - Static in radio (Bob) 3. 09:29 AM - Re: Static in radio (Etienne Phillips) 4. 09:34 AM - Lemo plug and KX99 (Sheldon Olesen) 5. 10:22 AM - Metcal soldering wand repair (Tom Barter) 6. 01:23 PM - Re: Metcal soldering wand repair (Robert L. Nuckolls, III) 7. 01:26 PM - Re: Amp crimper 59250 question (Robert L. Nuckolls, III) 8. 01:29 PM - Re: Re: VOR interference with other wiring? (Robert L. Nuckolls, III) 9. 02:36 PM - Re: Amp crimper 59250 question (rparigor@SUFFOLK.LIB.NY.US) 10. 03:03 PM - Re: Amp crimper 59250 question (Gilles Thesee) 11. 03:10 PM - What's thoughts on Cool Amp? (rparigor@SUFFOLK.LIB.NY.US) 12. 04:15 PM - Will other wiring interfere with Magnetometer? (Allen Fulmer) 13. 05:19 PM - Re: Using TurboCad (Emrath) 14. 09:41 PM - Re: Will other wiring interfere with Magnetometer? (Robert McCallum) ________________________________ Message 1 _____________________________________ Time: 07:29:48 AM PST US From: "Bill Schertz" Subject: Re: AeroElectric-List: Fuel pressure sender testing Try calibrating it off the plane, with air pressure and a pressure gauge hooked up to a regulator. then you can measure the resistance as a function of pressure and see if the sender is changing, or if the problem lies with the readout. Bill Schertz KIS Cruiser #4045 N343BS ----- Original Message ----- From: "Sheldon Olesen" Sent: Sunday, January 04, 2009 10:46 AM Subject: AeroElectric-List: Fuel pressure sender testing > > > Bob, > > I'm having trouble with my EIS 6000 fuel pressure reading. I have the > proper scale, offset factors, and resistor entered into the EIS for a > 0-30 setup. It reads a constant 10.3 psi regardless of whether or not > the fuel pump is on or not. I've checked the continuity of the pressure > sender across the terminals and it has continuity and a resistance of 6.2 > ohms without the pump being on. However, I have no idea of what it is > supposed to read and how to trouble shoot the problem. Some hints would > be welcome. > > Thanks, > > Sheldon Olesen > > > ________________________________ Message 2 _____________________________________ Time: 08:48:15 AM PST US From: "Bob" Subject: AeroElectric-List: Static in radio Com Icom A-6 handheld connected only to headset, NO CONNECTION TO A/C ELECT RICAL. Static noise and flickering RX symbol on handheld (no voice being re ceived)so distractiing its makes use unbearable. No static during actual v oice reception-tower reports clear,good, no noise voice. Outside of a/c fac ing prop or tail (no noise)-move in circle about a/c noise develops. Inside a/c noise at all times except during actual voice reception. The following have NO affect: tried different radio,headset, partchcords-disconnected al ternator belt,field lead-put condensor for noise trap on regulator,coil, di stributor-on/off of elec T/B(has in-line filter),trim tab,intercom,strobe-a ll electrical connections,wires,terminal strips verified good-only other el ectrical are the amp/vot meter connections. Noise does not occur when radio /headset combo used in other a/c. 12 years building, FAA certified, l year so far chasing =22BUGS=22 and hopefully last item to correct so I CAN FLY! P LEASE HELP IF YOU WOULD Thank You, Bob Sauer Age 70 Wanting to Fly www.re sauer@cox.net -- We are a community of 5.8 million users fighting spam. The Professional version does not have this message ________________________________ Message 3 _____________________________________ Time: 09:29:11 AM PST US Subject: Re: AeroElectric-List: Static in radio From: Etienne Phillips Hi Bob Not trying to be funny, or to appear obnoxious in any way, but have you tried adjusting the squelch? If the radio is actively receiving voice, then you shouldn't here anything! If the voice reception is clear, then it reduces the possibility of serious interference, and is probably the radio turning the gain all the way up when there's no signal being received, thereby amplifying even the smallest bit of noise. If your squelch level is set to open, or is too low, then the radio will think this is a legitimate signal and plays it through the headset. I hope this helps... Etienne On 05 Jan 2009, at 6:46 PM, Bob wrote: > Com Icom A-6 handheld connected only to headset, NO CONNECTION TO A/ > C ELECTRICAL. Static noise and flickering RX symbol on handheld (no > voice being received)so distractiing its makes use unbearable. No > static during actual voice reception-tower reports clear,good, no > noise voice. Outside of a/c facing prop or tail (no noise)-move in > circle about a/c noise develops. Inside a/c noise at all times > except during actual voice reception. The following have NO affect: > tried different radio,headset, partchcords-disconnected alternator > belt,field lead-put condensor for noise trap on regulator,coil, > distributor-on/off of elec T/B(has in-line filter),trim > tab,intercom,strobe-all electrical connections,wires,terminal > strips verified good-only other electrical are the amp/vot meter > connections. Noise does not occur when radio/headset combo used in > other a/c. 12 years building, FAA certified, l year so far chasing > "BUGS" and hopefully last item to correct so I CAN FLY! > P LEASE HELP IF YOU WOULD Thank You, Bob Sauer Age 70 Wanting to > Fly www.resauer@cox.net > > We are a community of 5.8 million users fighting spam. > The Professional version does not have this message > > ________________________________ Message 4 _____________________________________ Time: 09:34:29 AM PST US From: Sheldon Olesen Subject: AeroElectric-List: Lemo plug and KX99 Has anyone tried to hookup a Bose Lemo plug to a KX99 hand held? Any problems? Sheldon Olesen ________________________________ Message 5 _____________________________________ Time: 10:22:37 AM PST US From: "Tom Barter" Subject: AeroElectric-List: Metcal soldering wand repair A while back I purchased a Metcal soldering wand, model MX RM3E, which was damaged when it arrived. The cable had been severed about in the middle. The company sent me a replacement, but I was wondering if the cable could be repaired. The cable has a braided shield around a single stranded conductor. Any thoughts? Regards, Tom Barter Kesley, IA Avid Magnum ________________________________ Message 6 _____________________________________ Time: 01:23:39 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Metcal soldering wand repair At 12:19 PM 1/5/2009, you wrote: >A while back I purchased a Metcal soldering wand, model MX RM3E, >which was damaged when it arrived. The cable had been severed about >in the middle. The company sent me a replacement, but I was >wondering if the cable could be repaired. The cable has a braided >shield around a single stranded conductor. Any thoughts? > Sure. It's not "magic" wire. It's not even a true coaxial cable suitable for transmission lines. The Metcal power supplies are really a radio frequency transmitter with an operating frequency about 300 Khz and a 30 watts or so power output. The soldering tips are the "magic" parts. At temperatures below their rated heating value, they represent a rather low impedance load to the "transmitter". Hence they draw power and convert it to heat (really useful for melting solder). At their calibrated operating temperature, the "magic" material in the tip (30% unobtainium alloyed with 69% youneverheardofit and 1% pixiedust) goes into a high impedance state thus reducing its power consumption thereby regulating temperature AT THE TIP. The wand wiring is special to the extent that it is very flexible, resistant to damage from the hot iron, and reasonably robust (but as you've observed, not invincible!). Ordinary craftsmanship can be used to splice your damaged wire. Take a look at this comic book: http://aeroelectric.com/articles/shldwire/shldwire.html Suggest you prepare the cut ends as shown except cut the center conductor to about 1/4" exposed insulation and 1/2" exposed wire. Lap splice the center conductors. Wrap with two layers electrical tap. Trim outer conductor for 1/2" overlap and solder those too. Cover whole thing with heat-shrink (oh yeah, the heat shrink needs to go on before you start stripping/splicing the conductors. I've made similar repairs to Metcal wands like this twice with gratifying results. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 7 _____________________________________ Time: 01:26:45 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Amp crimper 59250 question At 03:29 PM 1/4/2009, you wrote: >The Amp crimper 59250 as seen in: >http://aeroelectric.com/articles/CrimpTools/crimptools.html > >has a four position adjustment. > >How is it best determined which position to select for a given wire/terminal? It stays on "1" unless you're putting terminals onto multiple wires as in . . . http://aeroelectric.com/Pictures/Terminals/3x20Blue.jpg or using wire with really thick insulation like . . . http://aeroelectric.com/Pictures/Terminals/CLEVELAND66A.jpg Do some tests. It's better to err on too-tight as opposed to too-loose. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 8 _____________________________________ Time: 01:29:30 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: VOR interference with other wiring? It's a well watered and fertilized myth that strobe head wires are a noise coupling risk to coaxial feedlines to antennas. You may route them together without concern. Bob . . . At 03:44 PM 1/4/2009, you wrote: > > >I did exactly that on my RV7A and have no problems whatsoever. > >Dennis Glaeser > >----------------------------------- >Hello, >I'm mounting a Bob Archer VOR antenna in the right wingtip. >There will be also lights, nav. & landing & strobe. >The strobes will be powered by a single power pack in the fuselage, using a >shielded cable ( from Whelen). >I have mounted a corrugated nylon conduit in the wings, and was planning to >put all the wires, including the VOR coax, together in this conduit. > >Is this a good solution? I do not find accurate info in the archives. > >Thanks; Jef Vervoort, RV9A. ________________________________ Message 9 _____________________________________ Time: 02:36:41 PM PST US Subject: Re: AeroElectric-List: Amp crimper 59250 question From: rparigor@SUFFOLK.LIB.NY.US Hi Bob Thx. for the reply. I found a useful site: http://www.aircraftmech.com Under crimpers Then AMP P.I.G.D. Certicrimp 59250 with pictures of precise what you said. There appears to be lots of good information on aeroplane electrical stuff, if you have a chance have a look and let group know what you think. Sincerely Ron Parigoris > It stays on "1" unless you're putting terminals onto > multiple wires as in . . . > > http://aeroelectric.com/Pictures/Terminals/3x20Blue.jpg > > or using wire with really thick insulation like . . . > > http://aeroelectric.com/Pictures/Terminals/CLEVELAND66A.jpg > > Do some tests. It's better to err on too-tight as > opposed to too-loose. ________________________________ Message 10 ____________________________________ Time: 03:03:43 PM PST US From: Gilles Thesee Subject: Re: AeroElectric-List: Amp crimper 59250 question rparigor@SUFFOLK.LIB.NY.US a crit : > I found a useful site: > http://www.aircraftmech.com > > ... > > There appears to be lots of good information on aeroplane electrical > stuff, if you have a chance have a look and let group know what you think. > Ron and all, Thanks for the hint to this most interesting website. I noticed the author is aware of the Aeroelectric website and technical picture. I'm also proud to mention that the author is also aware of the Contrails ! website, and found some of my own electrical pictures worthy of publishing ;-) Best regards, -- Gilles http://contrails.free.fr ________________________________ Message 11 ____________________________________ Time: 03:10:48 PM PST US Subject: AeroElectric-List: What's thoughts on Cool Amp? From: rparigor@SUFFOLK.LIB.NY.US Anyone have any thoughts on using Cool Amp onbuss and other high amperage connections? http://www.cool-amp.com/ It is a wipe on with damp cloth application. Ron Parigoris ________________________________ Message 12 ____________________________________ Time: 04:15:03 PM PST US From: "Allen Fulmer" Subject: AeroElectric-List: Will other wiring interfere with Magnetometer? Rather than hijack the thread on interference with Bob Archer VOR antennas I thought I would start a new thread on Magnetometer interference: My magnetometers will be on the end ribs of my RV7. GRT Magnetometer installation instructions read: ----------------------------------------------- "The most important consideration when mounting the magnetometer is that of choosing a location in the airplane that is away from magnetic disturbances. It is quite amazing how sensitive the magnetometer is to these disturbances, and how much error this can cause in the magnetic heading reported by the AHRS." and then: "... be sure to keep the magnetometer at least 12 inches away from any current carrying wires (such as navigation or landing light wires), and more than 18 inches away from ferrous metal, such as the steel mass balance tube that is typically used in the leading edge of ailerons." ----------------------------------------------- On my RV7, I only put two conduits in the wings as I was building: one near the trailing edge that runs parallel (and within 12 inches) to the aileron "steel mass balance tube" and the other just behind the spar. This forward run was originally going to carry all the wires to strobes, nav. lights, landing lights, and coax to Bob Archer VOR antenna. I guess I could run all the electrical stuff in the rear conduit and the magnetometer wires in the forward one. Opinion Bob? Other's experience? Thanks, Allen Fulmer RV7 wiring Alexander City, AL ________________________________ Message 13 ____________________________________ Time: 05:19:21 PM PST US From: "Emrath" Subject: RE: AeroElectric-List: Using TurboCad FYI, I downloaded for free the Turbocad LE or Learning edition. The tutorial is on line. Worked for me, but it is a bit cumbersome but it was a good price to value ratio. Marty Brentwood TN Time: 04:45:24 PM PST US From: "B Tomm" Subject: RE: AeroElectric-List: Using TurboCad Thanks for advice. I am downloading now and will give it a try. Bevan _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Sam Hoskins Sent: Sunday, January 04, 2009 5:58 AM Subject: Re: AeroElectric-List: Using TurboCad I have used various CAD systems over the years and when I retired I was seeking a good free one for home use. I came across a professional program called Siemens' Solid Edge Designer for 2D. I really like it. It uses something called "Relationship handles" which is useful, but difficult for me to describe here. The company makes it free to individuals and companies in the hope that you like it so much that you'll upgrade to their 3D system. It does work with all of Bob's drawings. The bad new is there is no manual available. The good news is the online help is adequate and, best yet, there is also ae e-mail list run by tech experts at SolidEdge. Sam Hoskins Murphysboro, IL On Fri, Jan 2, 2009 at 8:40 PM, B Tomm wrote: To the Cad whizzes out there. I'm taking advantage of the bad weather and trying to "professionalize" my wiring diagrams using TurboCad. I'm starting to feel really old here cause I'm so frustrated with this TurboCad program. I really want to make it work and not get something else. I've imported a drawing from Bob's collection in DWG format. All I want to do is erase a few lines, re-draw them slightly elsewhere and copy a few fuses to add the extra circuits. Erase, copy, cut, paste, snap are eluding me even though there are a bazillion tools all around. Can I not just put a square around a section of the drawing, cut and paste etc? Jack Daniels is starting to tempt me! Bevan Marty ________________________________ Message 14 ____________________________________ Time: 09:41:18 PM PST US From: "Robert McCallum" Subject: Re: AeroElectric-List: Will other wiring interfere with Magnetometer? Allen; The instructions you cite seem to be referring to the location of the magnetometer itself NOT the routing of its connecting wires. The instructions say "when mounting the magnetometer - - etc choose a location away from magnetic disturbances" They make no mention of any precautions to be taken in routing or location of the connecting wires which is what you'd be running through your conduit. No personal experience one way or the other, just my interpretation of the quotes you've submitted. Bob McC ----- Original Message ----- From: "Allen Fulmer" Sent: Monday, January 05, 2009 7:12 PM Subject: AeroElectric-List: Will other wiring interfere with Magnetometer? > > Rather than hijack the thread on interference with Bob Archer VOR antennas I > thought I would start a new thread on Magnetometer interference: > > My magnetometers will be on the end ribs of my RV7. > > GRT Magnetometer installation instructions read: > ----------------------------------------------- > "The most important consideration when mounting the magnetometer is that of > choosing a location in the airplane that is away from magnetic disturbances. > It is quite amazing how sensitive the magnetometer is to these disturbances, > and how much error this can cause in the magnetic heading reported by the > AHRS." > and then: > "... be sure to keep the magnetometer at least 12 inches away from any > current carrying wires (such as navigation or landing light wires), and more > than 18 inches away from ferrous metal, such as the steel mass balance tube > that is typically used in the leading edge of ailerons." > ----------------------------------------------- > > On my RV7, I only put two conduits in the wings as I was building: one near > the trailing edge that runs parallel (and within 12 inches) to the aileron > "steel mass balance tube" and the other just behind the spar. This forward > run was originally going to carry all the wires to strobes, nav. lights, > landing lights, and coax to Bob Archer VOR antenna. > > I guess I could run all the electrical stuff in the rear conduit and the > magnetometer wires in the forward one. > > Opinion Bob? Other's experience? > > Thanks, > > Allen Fulmer > RV7 wiring > Alexander City, AL > > ------------------------------------------------------------------------------------- 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.