---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 07/12/07: 15 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:57 AM - Re: Low transmit volume on Valcom 760 (Robert Feldtman) 2. 05:52 AM - Switches, Warning Light, Avionics Ground (Edward Christian) 3. 06:48 AM - Re: Switches, Warning Light, Avionics Ground (Alan Adamson) 4. 07:53 AM - Re: Garmin 430 transmitter problem (David Abrahamson) 5. 08:02 AM - Re: Z-19 (mikef) 6. 08:36 AM - Re: Garmin 430 transmitter problem (Gary Casey) 7. 10:36 AM - Z-19 - Low Voltage Monitor Module - Purpose? (mikef) 8. 10:47 AM - Re: Z-19 () 9. 11:46 AM - Re: Plane-Power (David E. Nelson) 10. 01:00 PM - Re: Re: Garmin 430 transmitter problem (Michael W Stewart) 11. 02:07 PM - Antenna (Dennis Jones) 12. 02:36 PM - Re: Z-19 () 13. 02:52 PM - Re: Z-19 (Hinde, Frank George (Corvallis)) 14. 04:41 PM - Re: Re: Low transmit volume on Valcom 760 (Chad) 15. 06:12 PM - Re: Z-19 (LarryMcFarland) ________________________________ Message 1 _____________________________________ Time: 03:57:00 AM PST US From: "Robert Feldtman" Subject: Re: AeroElectric-List: Low transmit volume on Valcom 760 Might be okay - Automatic gain control (AGC) on handheld may have cut down the volume - try to talk to somebody a further distance away. check your SWR. probably okay bobf On 7/11/07, Chad wrote: > > > > Hello all, new subscriber here looking for some helpful advice. > > I'm finishing up my instrument panel and did some radio testing > tonight. I have a Valcom 760 radio hooked up to a fiberglass rod type > antenna. I can receive great, in fact I was picking up traffic in the > pattern at an airport about 40 miles north of here with the airplane in > my garage. That said, I switched to a known unused channel and tried > some transmitting (listening on my handheld about 15 feet away) but the > volume was almost inaudible. I had to practically shout into my headset > mic in order to really hear and understand anything. I've checked some > of the basics with the wiring and don't see anything obvious. > > Anyone have any tips on what to check or what the problem might be? I'm > afraid that everyone will be able to hear me key the mic, but will > struggle understanding me with this low output volume. > > Regards, > > Chad > > ________________________________ Message 2 _____________________________________ Time: 05:52:54 AM PST US From: Edward Christian Subject: AeroElectric-List: Switches, Warning Light, Avionics Ground I have three questions. 1. Would you please elaborate on the current philosophy concerning the Left/Right mag switches. In the "book" you suggest 2-3 switches (pg. 11-18) but in the Z-11 diagram and note 2 you use the 2-5 switches. 2. I am rewiring my plane per the Z-11 diagram. I am installing a Grand Rapids EIS which has a warning light for all types of limits including low/high voltage and high amp draw - is there any reason to install the low/over voltage module? 3. I am planning on building an Avionics ground block. Is there a more detailed explanation? Do you use a connector with solder cups on back or just install all the female D-sub pins and solder to them? Do you have any part numbers and where to order materials? (Say to build fig. 18-14) Thanks, Ed ________________________________ Message 3 _____________________________________ Time: 06:48:07 AM PST US From: "Alan Adamson" Subject: RE: AeroElectric-List: Switches, Warning Light, Avionics Ground I continue to see this post about ground blocks for avionics, so I figured I'd chime in. I'll take some pictures of the ones that I've built, but for now, I hope this description will work. A) use a DB connector with solder cups B) get a piece of double sided copper clad curcuit board material in 1/16" thickness C) cut the curcuit board material such that with a DB connector pressed onto the edge of it that the outline of the remaining board will fit inside the DB shell that you'll use. D) now, just solder each solder cup onto the copper clad curcuit board E) drill and mount the terminal with the larger grounding wire to anywhere on the remaining area of the curcuit board making sure you use a conductive type mounting arrangement so you capture conductivity from both sides of the board F) you'll need to size the wire between the circuit board and the ground post to handle the amount of load of all the ground pins There you have it, use the gender of your choice and the size of DB connector based upon how many items you need to ground. Hope this helps, Frys (online) has most of the parts, or so should any major electronics distributor (digikey, or Mouser). In my case, I just walked into a frys and bought it all off the shelf. Alan -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Edward Christian Sent: Thursday, July 12, 2007 8:51 AM Subject: AeroElectric-List: Switches, Warning Light, Avionics Ground --> I have three questions. 1. Would you please elaborate on the current philosophy concerning the Left/Right mag switches. In the "book" you suggest 2-3 switches (pg. 11-18) but in the Z-11 diagram and note 2 you use the 2-5 switches. 2. I am rewiring my plane per the Z-11 diagram. I am installing a Grand Rapids EIS which has a warning light for all types of limits including low/high voltage and high amp draw - is there any reason to install the low/over voltage module? 3. I am planning on building an Avionics ground block. Is there a more detailed explanation? Do you use a connector with solder cups on back or just install all the female D-sub pins and solder to them? Do you have any part numbers and where to order materials? (Say to build fig. 18-14) Thanks, Ed ________________________________ Message 4 _____________________________________ Time: 07:53:23 AM PST US From: David Abrahamson Subject: Re: AeroElectric-List: Garmin 430 transmitter problem If it was the fuse, I don't understand why you were transmitting at all. I will call Stark soon if I can't figure it out myself with the list's help, but I was hoping the weak sidetone would be a helpful clue. Thanks for your help. David ________________________________ Message 5 _____________________________________ Time: 08:02:02 AM PST US Subject: AeroElectric-List: Re: Z-19 From: "mikef" I have a Z-19 switches usage clarification question. I am planning for this design in a GEO/Suzuki powered aircraft. I read the Z-19 diagram last night, I think I understand most of it. The switches I've tried to match them with their location on the diagram, and I think I've done that. What I am not sure of is: which switches are used at aircraft startup and/or flying? And is there more done with switches once the engine is running? I labeled the switches from left to right, A - H A - #2 Fuel Pump B - Secondary Power C - Primary Power D - Start E - E-Bus Alt Feed F - DC Pwr Master/Bat/Off - this is one I don't understand the purpose of the three way position. When would you use what? G - Alt Field - is this a circuit breaker? I did not find it on the diagram. To be honest I'm not sure what 'Alternator Field' really means. Yes, I am an noob. H - Eng Bat Auto/On/Off - Again, not understanding the purpose of the 3 position switch. My best guess for starting the aircraft would be the sequence: F to Bat, C on, B on, Start Clarification on these and their use is appreciated. Thanks, Mike Read this topic online here: http://forums.matronics.com/viewtopic.php?p=123402#123402 ________________________________ Message 6 _____________________________________ Time: 08:36:33 AM PST US From: Gary Casey Subject: AeroElectric-List: Re: Garmin 430 transmitter problem Is that a fuse internal to the radio? I seem to have the same problem. My 430 receives just fine, but transmissions are virtually non-existent. Gary Casey > Time: 04:23:58 AM PST US > Subject: Re: AeroElectric-List: Garmin 430 transmitter problem > From: Michael W Stewart > > > I had a similar problem and spent 2 weeks on it. If there is > seperate p > ower > to the VOR input, then the radio looks like it works, shows tx when > transmitting, but the transmissions are junk. In my case I could > barely > be > heard by a plane next to me. Since your being heard, this may not > be th > e > problem, but Id check it. > I finally broke down and took it to Stark avionics shop. They spent > 4 h > ours > on it. > IT WAS THE COM FUSE!!!! > Geez: > Mike ________________________________ Message 7 _____________________________________ Time: 10:36:10 AM PST US Subject: AeroElectric-List: Z-19 - Low Voltage Monitor Module - Purpose? From: "mikef" Hi, Can some explain the exact function of the relay output from the AEC9005 Low Voltage Monitor Module in the Z-19 diagram? Thanks, Mike Read this topic online here: http://forums.matronics.com/viewtopic.php?p=123431#123431 ________________________________ Message 8 _____________________________________ Time: 10:47:45 AM PST US Subject: AeroElectric-List: Re: Z-19 From: Thanks Mike, Agreed, I asked myself the same question when reading the diagram. I would also like to see at least a dashed line showing the leads for the two batteries. In a dual battery installation, the setup is not always obvious. Thanks to others for their opinions and suggestions. Glenn -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of mikef Sent: Thursday, July 12, 2007 11:02 AM Subject: [Probable SPAM] AeroElectric-List: Re: Z-19 I have a Z-19 switches usage clarification question. I am planning for this design in a GEO/Suzuki powered aircraft. I read the Z-19 diagram last night, I think I understand most of it. The switches I've tried to match them with their location on the diagram, and I think I've done that. What I am not sure of is: which switches are used at aircraft startup and/or flying? And is there more done with switches once the engine is running? I labeled the switches from left to right, A - H A - #2 Fuel Pump B - Secondary Power C - Primary Power D - Start E - E-Bus Alt Feed F - DC Pwr Master/Bat/Off - this is one I don't understand the purpose of the three way position. When would you use what? G - Alt Field - is this a circuit breaker? I did not find it on the diagram. To be honest I'm not sure what 'Alternator Field' really means. Yes, I am an noob. H - Eng Bat Auto/On/Off - Again, not understanding the purpose of the 3 position switch. My best guess for starting the aircraft would be the sequence: F to Bat, C on, B on, Start Clarification on these and their use is appreciated. Thanks, Mike Read this topic online here: http://forums.matronics.com/viewtopic.php?p=123402#123402 ________________________________ Message 9 _____________________________________ Time: 11:46:20 AM PST US From: "David E. Nelson" Subject: Re: AeroElectric-List: Plane-Power Hi Bob, I was just curious if you had had any time to explore any of Plane-Power's internally regulated alternators on that fancy alternator stand? Thanks, /\/elson Austin, TX On Mon, 29 Jan 2007, Robert L. Nuckolls, III wrote: > > > I'm pleased to inform the List that I've already received > a response to an inquiry I mailed to Steve Klodd at Plane Power > this morning. > > A copy of the exchange has been posted at: > > http://www.aeroelectric.com/Mfgr_Data/Alternators/Plane_Power/70129A_Plane-Power_SKlodd.pdf > > In a nutshell, Steve tells us that the 5A breaker illustrated in > their wiring diagram at . . . > > http://plane-power.com/images/AL12_EI70%20Wiring.pdf > > . . . does carry field excitation current. Further, the > OV protection module does pull down on this breaker to > "crowbar" it open and bring a misbehaving alternator > to heel. > > Further, this information confirms that operating the > "Alternator Field" switch provides any-time, any > conditions, any-reason, zero-risk ON/OFF control of > the alternator which is consistent with conventions > adopted for engine driven power sources on aircraft > since day one. > > I'm pleased to make Steve's acquaintance and will > endeavor to expand on this initiative. I'm equally > pleased to know that my this particular product would > live and operate happily in any system I would craft. > I confidently endorse Plane-Power's operating philosophy > for this product. > > > Bob . . . > > ---------------------------------------- > ( IF one aspires to be "world class", ) > ( what ever you do must be exercised ) > ( EVERY day . . . ) > ( R. L. Nuckolls III ) > ---------------------------------------- > > -- ~~ ** ~~ Research has shown that Mondays account for 1/7th of your time ~~ ** ~~ ________________________________ Message 10 ____________________________________ Time: 01:00:23 PM PST US Subject: Re: AeroElectric-List: Re: Garmin 430 transmitter problem From: Michael W Stewart No in my case it was a fuse to the com input. No fuses nside. Mike Gary Casey To Sent by: aeroelectric-list@matronics.com owner-aeroelectri cc c-list-server@mat ronics.com Subj ect AeroElectric-List: Re: Garmin 4 30 transmitter problem 07/12/2007 11:27 AM Please respond to aeroelectric-list @matronics.com et> Is that a fuse internal to the radio? I seem to have the same problem. My 430 receives just fine, but transmissions are virtually non-existent. Gary Casey > Time: 04:23:58 AM PST US > Subject: Re: AeroElectric-List: Garmin 430 transmitter problem > From: Michael W Stewart > > > I had a similar problem and spent 2 weeks on it. If there is > seperate p > ower > to the VOR input, then the radio looks like it works, shows tx when > transmitting, but the transmissions are junk. In my case I could > barely > be > heard by a plane next to me. Since your being heard, this may not > be th > e > problem, but Id check it. > I finally broke down and took it to Stark avionics shop. They spent > 4 h > ours > on it. > IT WAS THE COM FUSE!!!! > Geez: > Mike ======================== ============ ======================== ============ ======================== ============ ________________________________ Message 11 ____________________________________ Time: 02:07:06 PM PST US Subject: AeroElectric-List: Antenna From: "Dennis Jones" Bob Would the steel tubes in the back of a tube and fabric airplane preclude an individule from mounting a rod type (or any other type) com antenna inside the tail of the aircraft? Would it help or hender the ground plane requirements? Thanks again Dennis Read this topic online here: http://forums.matronics.com/viewtopic.php?p=123483#123483 ________________________________ Message 12 ____________________________________ Time: 02:36:00 PM PST US Subject: RE: AeroElectric-List: Z-19 From: Larry, Great job on the Zodiac - what a huge amount of work! You've got some heavy duty pitot plumbing there! As you said, I see a few variations on Bob's theme, but a job well done. I cannot see the add'l fuel pumps on this schematic? I would be interested to see how you laid the wiring out for them. I'm assuming you are only running 1 at a time? Thanks -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of LarryMcFarland Sent: Tuesday, July 10, 2007 8:50 PM Subject: Re: AeroElectric-List: Z-19 --> Hi Glenn, I don't know about the diagram number, but your items match mine and I did wire things very closely to the AeroElectric diagrams. Absolutely no problems so far, but for one early on, not having a contactor replacing my internal starter relay power. The link below perhaps offers a different schematic view. http://www.macsmachine.com/images/electrical/full/primary-wiring.gif Lots of images on the engine page and electrical page Good luck, Larry McFarland 601HDS - Subaru power, one alternator and 4 fuel pumps at www.macsmachine.com longg@pjm.com wrote: > > > I would like to hear from anyone who has implemented this diag > successfully. I am working on a Subaru with two batteries, one > alternator and two fuel pumps. I would like to hear about your could > of done, should of done, could do better next time etc. How many > gotchas are in the design and so on. Pictures would be great if you > have them. > > Some of us pilots are pessimists even before we wake up! > > Thanks, > Glenn > > > ________________________________ Message 13 ____________________________________ Time: 02:52:48 PM PST US Subject: RE: AeroElectric-List: Z-19 From: "Hinde, Frank George (Corvallis)" I hope not....At least 2 for Take off and landing. Frank Soobed Zodiac 400 hours sold Lyc'd RV7a 170 hours -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of longg@pjm.com Sent: Thursday, July 12, 2007 2:35 PM Subject: RE: AeroElectric-List: Z-19 Larry, Great job on the Zodiac - what a huge amount of work! You've got some heavy duty pitot plumbing there! As you said, I see a few variations on Bob's theme, but a job well done. I cannot see the add'l fuel pumps on this schematic? I would be interested to see how you laid the wiring out for them. I'm assuming you are only running 1 at a time? Thanks -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of LarryMcFarland Sent: Tuesday, July 10, 2007 8:50 PM Subject: Re: AeroElectric-List: Z-19 --> Hi Glenn, I don't know about the diagram number, but your items match mine and I did wire things very closely to the AeroElectric diagrams. Absolutely no problems so far, but for one early on, not having a contactor replacing my internal starter relay power. The link below perhaps offers a different schematic view. http://www.macsmachine.com/images/electrical/full/primary-wiring.gif Lots of images on the engine page and electrical page Good luck, Larry McFarland 601HDS - Subaru power, one alternator and 4 fuel pumps at www.macsmachine.com longg@pjm.com wrote: > > > I would like to hear from anyone who has implemented this diag > successfully. I am working on a Subaru with two batteries, one > alternator and two fuel pumps. I would like to hear about your could > of done, should of done, could do better next time etc. How many > gotchas are in the design and so on. Pictures would be great if you > have them. > > Some of us pilots are pessimists even before we wake up! > > Thanks, > Glenn > > > ________________________________ Message 14 ____________________________________ Time: 04:41:52 PM PST US From: Chad Subject: Re: AeroElectric-List: Re: Low transmit volume on Valcom 760 I don't have access to SWR but I went further away with the handheld (couple hundred feet I guess) and it's the same thing. You can hear and it's relatively clear, just really quiet. chad Subject: Re: Low transmit volume on Valcom 760 From: Robert Feldtman (bobf@feldtman.com) Date: Thu Jul 12 - 3:57 AM Might be okay - Automatic gain control (AGC) on handheld may have cut down the volume - try to talk to somebody a further distance away. check your SWR. probably okay bobf On 7/11/07, Chad wrote: > > > > Hello all, new subscriber here looking for some helpful advice. > > I'm finishing up my instrument panel and did some radio testing > tonight. I have a Valcom 760 radio hooked up to a fiberglass rod type > antenna. I can receive great, in fact I was picking up traffic in the > pattern at an airport about 40 miles north of here with the airplane in > my garage. That said, I switched to a known unused channel and tried > some transmitting (listening on my handheld about 15 feet away) but the > volume was almost inaudible. I had to practically shout into my headset > mic in order to really hear and understand anything. I've checked some > of the basics with the wiring and don't see anything obvious. > > Anyone have any tips on what to check or what the problem might be? I'm > afraid that everyone will be able to hear me key the mic, but will > struggle understanding me with this low output volume. > > Regards, > > Chad > ________________________________ Message 15 ____________________________________ Time: 06:12:29 PM PST US From: LarryMcFarland Subject: Re: AeroElectric-List: Z-19 Hi Glenn, The pumps are labeled Aux L & Aux R on the switch diagrams right above the buses. The master (main bus) and boost (essential bus) are both run on takeoff and plumbed in parallel. The Aux L and Aux R pumps (essential bus) are individually switched to pump from the wing tanks to the header as needed thru a fuel selector valve. The labeled connections feeding back thru the console give away where they are going and they are all Facet 105 pumps at 5 or 7 amps. The Aux pumps on the wing tanks are wired to a single 5 amp fuse in the main bus. I've labeled the pumps, but find that colored shrink wrap on the switch handles, yellow for main and boost and blue for aux pumps helps find the right switches faster than trying to read small lettering with my progressive-lens glasses. Anything outside the fuselage has a ground wire back to the forest-of-tabs ground on the firewall. I never run more than one wing pump at a time. Note: Header tank overflow was plumbed to drain at the right wing joint as I don't like fuel or fumes anywhere near the engine exhaust. It's not something perhaps you were concerned with just now, but I thought it worth noting. You should be able to make out the pictorial arrangement for all that's there, sometimes not so obvious. Thanks for the compliments. It was a lot of work, but I miss it now and must progress to a next project. Larry longg@pjm.com wrote: > > Larry, > Great job on the Zodiac - what a huge amount of work! You've got some > heavy duty pitot plumbing there! As you said, I see a few variations on > Bob's theme, but a job well done. I cannot see the add'l fuel pumps on > this schematic? I would be interested to see how you laid the wiring out > for them. I'm assuming you are only running 1 at a time? > > Thanks > > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of > LarryMcFarland > Sent: Tuesday, July 10, 2007 8:50 PM > To: aeroelectric-list@matronics.com > Subject: Re: AeroElectric-List: Z-19 > > > --> > > Hi Glenn, > I don't know about the diagram number, but your items match mine and I > did wire things > very closely to the AeroElectric diagrams. Absolutely no problems so > far, but for > one early on, not having a contactor replacing my internal starter relay > > power. > The link below perhaps offers a different schematic view. > http://www.macsmachine.com/images/electrical/full/primary-wiring.gif > Lots of images on the engine page and electrical page > Good luck, > > Larry McFarland 601HDS - Subaru power, one alternator and 4 fuel pumps > at www.macsmachine.com > > > longg@pjm.com wrote: > >> >> >> I would like to hear from anyone who has implemented this diag >> successfully. I am working on a Subaru with two batteries, one >> alternator and two fuel pumps. I would like to hear about your could >> of done, should of done, could do better next time etc. How many >> gotchas are in the design and so on. Pictures would be great if you >> have them. >> >> Some of us pilots are pessimists even before we wake up! >> >> Thanks, >> Glenn >> >> >> >> > > > ------------------------------------------------------------------------------------- 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.