AeroElectric-List Digest Archive

Sun 11/11/18


Total Messages Posted: 12



Today's Message Index:
----------------------
 
     0. 08:21 AM - A List Contribution - It's Your Personal Squelch Button... (Matt Dralle)
     1. 05:49 AM - Re: Wig-Wag wiring (Robert L. Nuckolls, III)
     2. 05:52 AM - Re: Re: Wig-Wag wiring (Robert L. Nuckolls, III)
     3. 07:38 AM - Re: Wig-Wag wiring (user9253)
     4. 08:13 AM - Re: Wig-Wag wiring (John Tipton)
     5. 02:07 PM - Re: Re: Wig-Wag wiring (Robert L. Nuckolls, III)
     6. 02:41 PM - Antenna position (Bill Steer)
     7. 04:14 PM - Re: Antenna position (Robert L. Nuckolls, III)
     8. 05:49 PM - Re: Antenna position (Bill Steer)
     9. 05:57 PM - Re: Antenna position (jim)
    10. 07:04 PM - Re: Antenna position (Robert L. Nuckolls, III)
    11. 08:33 PM - Pin curious (Rick Beebe)
 
 
 


Message 0


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    Time: 08:21:28 AM PST US
    From: Matt Dralle <dralle@matronics.com>
    Subject: A List Contribution - It's Your Personal Squelch Button...
    There is an automatic "squelch button" of sorts for the Fund Raiser messages. Here's how it works... As soon as a List member makes a Contribution through the Matronics Fund Raiser web site, their email address is automatically added to this year's Contributor List and they instantly cease to receive further Fund Raiser messages for the rest of the month! Its just that simple! :-) I really do appreciate each and every one of your individual Contributions to support the Lists. It is your support that enables me to upgrade the hardware and software that are required to run a List Site such as this one. It also goes to pay for the commercial-grade Internet connection and to pay the huge electric bill to keep the computer gear running and the air conditioner powered on. I run all of the Matronics Email List and Forums sites here locally which allows me to control and monitor every aspect of the system for the utmost in reliably and performance. Your personal Contribution matters because, when combined with other Listers such as yourself, it pays the bills to keep this site up and running. I accept exactly ZERO advertising dollars for the Matronics Lists sites. I can't stand the pop-up ads and all other commercials that are so prevalent on the Internet these days and I particularly don't want to have it on my Email List sites. If you appreciate the ad-free, grass-roots, down-home feel of the Matronics Email Lists, please make a Contribution to keep it that way!! http://www.matronics.com/contribution or, you can send a personal check to the following address: Matronics / Matt Dralle 581 Jeannie Way Livermore, CA 94550 Thank you! Matt Dralle Matronics Email List Administrator [Note that there are certain circumstances where you might still see a Contribution related message. For example, if someone replies to one of the messages, when using the List Browse feature, or when accessing List message via the Forum. The system keys on the given email address and since most of these are anonymous public access methods, there is no simple way to filter them.]


    Message 1


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    Time: 05:49:44 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Wig-Wag wiring
    At 04:30 PM 11/10/2018, you wrote: >PS: I have a spare Bridge Rectifier, can I use two of the diodes Yes. You use the common annode (-) terminal as the power input from the switch. Tie the AC (~) terminals to each light. Ingnore the common cathode (+) termial. Bob . . .


    Message 2


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    Time: 05:52:46 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Wig-Wag wiring
    At 06:10 PM 11/10/2018, you wrote: > >How abouit DSTF3060CR Schottky, 2 diodes in one TO-220-2 package, >available at Mouser? That would work, but the el-cheapo bridge would be good too . . . > Save on shipping cost by ordering Schottky diodes and current > limiters from same source. Current limiters not necessary for anything but the really BIG incandescent lamps . . . and even then, their benefit is probably hard to quantify. Bob . . .


    Message 3


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    Time: 07:38:47 AM PST US
    Subject: Re: Wig-Wag wiring
    From: "user9253" <fransew@gmail.com>
    > Current limiters not necessary for anything > but the really BIG incandescent lamps . . . and > even then, their benefit is probably hard > to quantify. I only mentioned current limiters because a highly respected contributor to this forum had included them in his drawing posted above. :-) -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=484779#484779


    Message 4


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    Time: 08:13:17 AM PST US
    From: John Tipton <john@tiptonuk.eu>
    Subject: Re: Wig-Wag wiring
    Hi Bob Thank you: and for LED landing lights just a simple swap over - yes John Sent from my iPad ----x--O--x---- > On 11 Nov 2018, at 1:49 pm, Robert L. Nuckolls, III <nuckolls.bob@aeroelec tric.com> wrote: > > At 04:30 PM 11/10/2018, you wrote: >> PS: I have a spare Bridge Rectifier, can I use two of the diodes > > > Yes. You use the common annode (-) terminal > as the power input from the switch. Tie the > AC (~) terminals to each light. Ingnore the > common cathode (+) termial. > > Bob . . .


    Message 5


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    Time: 02:07:10 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Wig-Wag wiring
    > > > Current limiters not necessary for anything > > but the really BIG incandescent lamps . . . and > > even then, their benefit is probably hard > > to quantify. > >I only mentioned current limiters because a highly respected >contributor to this forum had included them in his drawing posted above. :-) Yeah, my bad. The conditional callout for current limiters got cropped off the original art from Eric's website. Did some dynamic studies of the current draw by incandescent lamps in wig-wag systems about a decade back. Seems 55w and larger lamps don't have time to cool off between flashes. The only time they present the typical cold-lamp inrush is on first light . . . every subsequent flash is quite benign for 'start up' current. Bob . . .


    Message 6


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    Time: 02:41:34 PM PST US
    From: Bill Steer <steerr@bellsouth.net>
    Subject: Antenna position
    I searched the archives for an answer to this question, but couldn't find one. Probably didn't search far enough. I'm building an Excalibur. There doesn't appear to be any place on top for a VHF antenna, so I'm putting it on the bottom, under the front seat. The Excalibur has short legs, so I'm using the 90 degree antenna from ACS. The question is - where should this antenna be positioned on the relatively small ground plane - with the connection in the center of the ground plane, or with the connection near the front of the ground plane so the majority of the trailing antenna is directly under the ground plane? Thanks very much for any help/advice. Bill --- This email has been checked for viruses by AVG. https://www.avg.com


    Message 7


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    Time: 04:14:15 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Antenna position
    At 04:40 PM 11/11/2018, you wrote: > >I searched the archives for an answer to this >question, but couldn't find one.=C2 Probably didn't search far enough. > >I'm building an Excalibur. There doesn't appear >to be any place on top for a VHF antenna, so I'm >putting it on the bottom, under the front >seat.=C2 The Excalibur has short legs, so I'm >using the 90 degree antenna from ACS.=C2 The >question is - where should this antenna be >positioned on the relatively small ground plane >- with the connection in the center of the >ground plane, or with the connection near the >front of the ground plane so the majority of the >trailing antenna is directly under the ground plane? > >Thanks very much for any help/advice. Center the ground plane . . . Antenna 'hardware' at the base has the lion's share of antenna CURRENT which is the stuff of radiation. It's effectiveness is enhanced by low resistance, central location in the ground plane. Bob . . .


    Message 8


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    Time: 05:49:10 PM PST US
    Subject: Re: Antenna position
    From: Bill Steer <steerr@bellsouth.net>
    Thanks, Bob. Bill do not archive On 11/11/2018 7:13 PM, Robert L. Nuckolls, III wrote: > At 04:40 PM 11/11/2018, you wrote: >> <steerr@bellsouth.net> >> >> I searched the archives for an answer to this question, but couldn't >> find one. Probably didn't search far enough. >> >> I'm building an Excalibur. There doesn't appear to be any place on >> top for a VHF antenna, so I'm putting it on the bottom, under the >> front seat. The Excalibur has short legs, so I'm using the 90 >> degree antenna from ACS. The question is - where should this >> antenna be positioned on the relatively small ground plane - with the >> connection in the center of the ground plane, or with the connection >> near the front of the ground plane so the majority of the trailing >> antenna is directly under the ground plane? >> >> Thanks very much for any help/advice. > > Center the ground plane . . . > Antenna 'hardware' at the base has the > lion's share of antenna CURRENT which > is the stuff of radiation. It's > effectiveness is enhanced by low > resistance, central location in > the ground plane. > > > Bob . . . > --- This email has been checked for viruses by AVG. https://www.avg.com


    Message 9


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    Time: 05:57:15 PM PST US
    From: "jim" <jimkale@roadrunner.com>
    Subject: Antenna position
    I am helping with the construction of an Excalibur and I too am trying to determine where to put the VHF com antenna. Any information about exactly where you are locating this antenna, and which commercial antenna you are using would be appreciated. Photos of the installation would be very nice also. Jimkale@roadrunner.com From: owner-aeroelectric-list-server@matronics.com <owner-aeroelectric-list-server@matronics.com> On Behalf Of Robert L. Nuckolls, III Sent: Sunday, November 11, 2018 6:14 PM Subject: Re: AeroElectric-List: Antenna position At 04:40 PM 11/11/2018, you wrote: <steerr@bellsouth.net <mailto:steerr@bellsouth.net> > I searched the archives for an answer to this question, but couldn't find one.=C2 Probably didn't search far enough. I'm building an Excalibur. There doesn't appear to be any place on top for a VHF antenna, so I'm putting it on the bottom, under the front seat.=C2 The Excalibur has short legs, so I'm using the 90 degree antenna from ACS.=C2 The question is - where should this antenna be positioned on the relatively small ground plane - with the connection in the center of the ground plane, or with the connection near the front of the ground plane so the majority of the trailing antenna is directly under the ground plane? Thanks very much for any help/advice. Center the ground plane . . . Antenna 'hardware' at the base has the lion's share of antenna CURRENT which is the stuff of radiation. It's effectiveness is enhanced by low resistance, central location in the ground plane. Bob . . .


    Message 10


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    Time: 07:04:57 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Antenna position
    >I'm building an Excalibur. There doesn't appear >to be any place on top for a VHF antenna, so I'm >putting it on the bottom, under the front >seat.=C2 The Excalibur has short legs, so I'm >using the 90 degree antenna from ACS.=C2 The >question is - where should this antenna be >positioned on the relatively small ground plane >- with the connection in the center of the >ground plane, or with the connection near the >front of the ground plane so the majority of the >trailing antenna is directly under the ground plane? Is that fabric over steel-tube? What is the nature of your 'ground' plane. Is it off center between the keel and first outboard stringer? Bob . . .


    Message 11


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    Time: 08:33:33 PM PST US
    From: Rick Beebe <rick@beebe.org>
    Subject: Pin curious
    I'm wiring up a CAN Bus for a Garmin G3X system the Garmin-recommended way by soldering a short pigtail to the two CAN HI wires and another to the two CAN LO wires as they pass by a device. It got me curious about pins. Are the machined, 4-crimp pins really that superior to the stamped sheet metal ones? I could easily crimp both wires into one of the latter and save a ton of time. It's an academic question as I'm already well down the road to getting this all soldered up, but I'm curious. --Rick




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