---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 09/23/08: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:24 AM - Radio Problem (rveighta) 2. 09:12 AM - Re: Radio Problem (Robert L. Nuckolls, III) 3. 10:11 AM - Source for welding cable? (Sam Hoskins) 4. 10:24 AM - Re: Radio Problem (Matt Prather) 5. 10:28 AM - Re: Source for welding cable? (Richard Girard) 6. 10:39 AM - Re: Source for welding cable? (Sam Hoskins) 7. 10:46 AM - Re: Source for welding cable? (Robert L. Nuckolls, III) 8. 10:49 AM - Re: Source for welding cable? (John McMahon) 9. 11:33 AM - Re: Source for welding cable? (ROGER & JEAN CURTIS) 10. 01:53 PM - Re: Source for welding cable? (Jim Streit) 11. 03:49 PM - current draw (Bill) 12. 05:35 PM - Re: current draw (Bill Schlatterer) ________________________________ Message 1 _____________________________________ Time: 05:24:57 AM PST US From: rveighta Subject: AeroElectric-List: Radio Problem Bob, I have an Apollo SL-30 radio in my RV-8 which has a rather unique problem; on the ground, even with the engine running at high RPM, the radio transmits and receives flawlessly. In the air it's a different story. As soon as I take off, a loud background noise begins which makes receiving transmissions nearly impossible. Usually, sometime during the flight, this noise goes away and the reception is crystal clear. The background noise doesn't seem to affect transmissions I have a belly mounted Comant bent whip antenna. Coax connections are tight. Any idea of what the problem might be? Thanks, Walt Shipley ________________________________ Message 2 _____________________________________ Time: 09:12:12 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Radio Problem At 08:21 AM 9/23/2008 -0400, you wrote: > >Bob, I have an Apollo SL-30 radio in my RV-8 which has a rather unique >problem; on the ground, even with the engine running at high RPM, the >radio transmits and receives flawlessly. In the air it's a different >story. As soon as I take off, a loud background noise begins which makes >receiving transmissions nearly impossible. Usually, sometime during the >flight, this noise goes away and the reception is crystal clear. The >background noise doesn't seem to affect transmissions > >I have a belly mounted Comant bent whip antenna. Coax connections are >tight. Any idea of what the problem might be? Do you have a hand-held transceiver you can connect to this antenna? It would be useful to know if the noise in coming in through the antenna or elsewhere. Does the noise go up and down with the radio's volume control? I presume you've explored potential antagonist devices in the airplane. Can you do a test flight with fuses/ breakers pulled for everything except engine and radio? Have you shut the alternator off to see if the noise goes away? Bob . . . ________________________________ Message 3 _____________________________________ Time: 10:11:24 AM PST US From: "Sam Hoskins" Subject: AeroElectric-List: Source for welding cable? I'm looking for a place to get some good 4AWG welding cable. (Small amounts- of course). I see McMaster-Carr has some, but I would prefer to get both black and red. Does anyone have any sources? I see some on Ebay also. Sam Hoskins Murphysboro, IL www.samhoskins.blogspot.com ________________________________ Message 4 _____________________________________ Time: 10:24:27 AM PST US Subject: Re: AeroElectric-List: Radio Problem From: "Matt Prather" Is there a squelch on the monitored frequency? I haven't messed with an SL-30 enough to know, but I could imagine that the monitored frequency my pick up noise and drown out the primary frequency. Total conjecture on my part. Discard as necessary.. :) Regards, Matt- > > > At 08:21 AM 9/23/2008 -0400, you wrote: >> >> >>Bob, I have an Apollo SL-30 radio in my RV-8 which has a rather unique >>problem; on the ground, even with the engine running at high RPM, the >>radio transmits and receives flawlessly. In the air it's a different >>story. As soon as I take off, a loud background noise begins which makes >>receiving transmissions nearly impossible. Usually, sometime during the >>flight, this noise goes away and the reception is crystal clear. The >>background noise doesn't seem to affect transmissions >> >>I have a belly mounted Comant bent whip antenna. Coax connections are >>tight. Any idea of what the problem might be? > > Do you have a hand-held transceiver you can connect to > this antenna? It would be useful to know if the noise > in coming in through the antenna or elsewhere. Does > the noise go up and down with the radio's volume > control? > > I presume you've explored potential antagonist devices > in the airplane. Can you do a test flight with fuses/ > breakers pulled for everything except engine and radio? > > Have you shut the alternator off to see if the noise > goes away? > > Bob . . . > > ________________________________ Message 5 _____________________________________ Time: 10:28:18 AM PST US From: "Richard Girard" Subject: Re: AeroElectric-List: Source for welding cable? What about your local Tractor Supply, Orscheln's, Atwoods, fill in your local farm supply store. Welding supply outlets, too. If you can't get the red and black, Harbor Freight has those colors of shrink tubing for cheap. Rick do not archive On Tue, Sep 23, 2008 at 12:09 PM, Sam Hoskins wrote: > I'm looking for a place to get some good 4AWG welding cable. (Small > amounts- of course). I see McMaster-Carr has some, but I would prefer to get > both black and red. Does anyone have any sources? I see some on Ebay also. > > Sam Hoskins > Murphysboro, IL > www.samhoskins.blogspot.com > > > * > > ________________________________ Message 6 _____________________________________ Time: 10:39:05 AM PST US From: "Sam Hoskins" Subject: Re: AeroElectric-List: Source for welding cable? Like anything else, there must be good and bad quality cable available out there. What would be the difference to look for? Sam On Tue, Sep 23, 2008 at 12:25 PM, Richard Girard wrote: > What about your local Tractor Supply, Orscheln's, Atwoods, fill in your > local farm supply store. Welding supply outlets, too. If you can't get the > red and black, Harbor Freight has those colors of shrink tubing for cheap. > Rick > do not archive > > > On Tue, Sep 23, 2008 at 12:09 PM, Sam Hoskins wrote: > >> I'm looking for a place to get some good 4AWG welding cable. (Small >> amounts- of course). I see McMaster-Carr has some, but I would prefer to get >> both black and red. Does anyone have any sources? I see some on Ebay also. >> >> Sam Hoskins >> Murphysboro, IL >> www.samhoskins.blogspot.com >> >> >> > * > > * > > ________________________________ Message 7 _____________________________________ Time: 10:46:10 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Source for welding cable? At 12:09 PM 9/23/2008 -0500, you wrote: >I'm looking for a place to get some good 4AWG welding cable. (Small >amounts- of course). I see McMaster-Carr has some, but I would prefer to >get both black and red. Does anyone have any sources? I see some on Ebay >also. If not seen it in colors in my local suppliers inventory. The stuff I get here in Wichita is from a local welding supply store that supplies my CO2 for the environmental chamber. See: http://aeroelectric.com/Pictures/Wire/4AWG_Welding_Cable_1.jpg This stuff is designed primarily for rough service . . . lay out on gravel roads and be run over by dump-trucks. Local pricing for cut lengths is about $1.25/foot Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 8 _____________________________________ Time: 10:49:51 AM PST US From: "John McMahon" Subject: Re: AeroElectric-List: Source for welding cable? Hi Sam, I got mine from Wiremasters. Sedveral of us have used them, Deb was very helpful and the price for all their wire was the best I found. Deb Sullivan Account Executive *WireMasters, Inc.** *Phone: 800-635-5342 Fax: 615-791-6182 Email: dsullivan@ wiremasters.net Web site: http://www.wiremasters.net/ -- John McMahon Lancair Super ES, S/N 170, N9637M (Reserved) ________________________________ Message 9 _____________________________________ Time: 11:33:59 AM PST US From: "ROGER & JEAN CURTIS" Subject: RE: AeroElectric-List: Source for welding cable? Like anything else, there must be good and bad quality cable available out there. What would be the difference to look for? Sam I would recommend the VU-TRON cable. It has fine strands and is very flexible. Your application may or may not need the flexibility. It is also very durable. I was only able to find it in orange, but will use shrink sleeving to identify. It is a little more expensive but for me, worth the extra cost. My $.10 worth (inflation, you know) Roger ________________________________ Message 10 ____________________________________ Time: 01:53:34 PM PST US From: Jim Streit Subject: Re: AeroElectric-List: Source for welding cable? Sam, B&C has it in both red & black and will cut whatever length you need Jim Streit 90073 Sam Hoskins wrote: > I'm looking for a place to get some good 4AWG welding cable. (Small > amounts- of course). I see McMaster-Carr has some, but I would prefer > to get both black and red. Does anyone have any sources? I see some > on Ebay also. > > Sam Hoskins > Murphysboro, IL > www.samhoskins.blogspot.com > > * > > > * > ------------------------------------------------------------------------ > > > Checked by AVG - http://www.avg.com > > ________________________________ Message 11 ____________________________________ Time: 03:49:00 PM PST US From: "Bill" Subject: AeroElectric-List: current draw Can anyone tell me the expected current draw on a facet solid state fuel pump? ( 12v - 2.5/4.5 psi ) Also on rac servos. Thanks Bill S. ________________________________ Message 12 ____________________________________ Time: 05:35:51 PM PST US From: "Bill Schlatterer" Subject: RE: AeroElectric-List: current draw << Standard 12 V models require only 1 amp at max. delivery. >> From ACS Bill S 7a finishing _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Bill Sent: Tuesday, September 23, 2008 5:45 PM Subject: AeroElectric-List: current draw Can anyone tell me the expected current draw on a facet solid state fuel pump? ( 12v - 2.5/4.5 psi ) Also on rac servos. 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