AeroElectric-List Digest Archive

Sun 05/27/07


Total Messages Posted: 10



Today's Message Index:
----------------------
 
     1. 05:42 AM - radio light (bob noffs)
     2. 07:15 AM - Re: radio light (Ken)
     3. 08:52 AM - Re: Garmin 327 XPDR Cable & Artex me406 ELT cable (Bill McMullen)
     4. 09:47 AM - How to (sc...) ruin your VHF (Gilles Thesee)
     5. 10:12 AM - Re: radio light (Carlos Trigo)
     6. 10:12 AM - Re: Electronics stolen (David Abrahamson)
     7. 12:31 PM - Re: radio light (luigit@freemail.it)
     8. 01:25 PM - Re: Electronics stolen (Daniel De Winter)
     9. 02:33 PM - Re: radio light (LarryMcFarland)
    10. 04:17 PM - Garmin 327 XPDR Cable & Artex me406 ELT cable (Jeff)
 
 
 


Message 1


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    Time: 05:42:30 AM PST US
    From: "bob noffs" <icubob@newnorth.net>
    Subject: radio light
    hi all, i have just gotten my icom 200 wired and it works! no credit to me , i had help. the radio reqiures a separate power feed for its lighting. the plane will be used daytime vfr only. i could wire the lighting on always , wire it to go on with the nav lights, and numerous other ways. not a very big deal but i wanted to hear if there is a logical reason to do it one way versus another. thanks bob noffs


    Message 2


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    Time: 07:15:20 AM PST US
    From: Ken <klehman@albedo.net>
    Subject: Re: radio light
    Hi Bob FWIW I have a bright/off/dim switch on mine because I like it dimmed at night. On bubble canopy aircraft it doesn't seem to make much difference whether it is lighted during daytime but in my high wing machine with sunglasses on, the light does seem to make it slightly easier to read during the day. Actually when I realized that all the little lights were incandescant instead of LED's, I put a 10 ohm resistor in series with the light for the bright setting to insure long life but I have no real idea of the bulb life without the resistor. My dim position puts a 22 ohm resistor in series with the lights. It would have been fine wired to the instrument light dimmer as well but I wanted it on when the other things were turned off. Another peculiarity I had was that the mic gain on the top of the radio was set too high from the factory for any mic that I tried which resulted in poor transmissions initially. Ken bob noffs wrote: > hi all, > i have just gotten my icom 200 wired and it works! no credit to me , > i had help. the radio reqiures a separate power feed for its lighting. > the plane will be used daytime vfr only. i could wire the lighting on > always , wire it to go on with the nav lights, and numerous other > ways. not a very big deal but i wanted to hear if there is a logical > reason to do it one way versus another. thanks > bob noffs


    Message 3


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    Time: 08:52:41 AM PST US
    Subject: Re: Garmin 327 XPDR Cable & Artex me406 ELT cable
    From: "Bill McMullen" <CircleM@telusplanet.net>
    The Artex ME406 manual that I have is very clear that shielded 5 wire cable is only recommended. They further state that shielded 4 conductor cable can be used where the shield is used as the ground wire. This latter method can also be used for upgrade compatibility. I wired my remote for an Artex ELT-200 using 4 conductor shielded wire in such a way that it can later be used for an ME-406 replacement simply by changing the ELT plug. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=115060#115060


    Message 4


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    Time: 09:47:46 AM PST US
    From: Gilles Thesee <Gilles.Thesee@ac-grenoble.fr>
    Subject: How to (sc...) ruin your VHF
    Hi all, Recently a buddy building a microlight asked for some help wiring his electrical circuit. He had already installed everything on the panel. The wiring went well until a few days ago when powering up the brand new Microair 760 VHF and PM-501 intercom. While the VHF back light was glowing, the VHF display remained blank and nothing worked. After checking every wire in the circuit, much head scratching, and enduring some veiled accusation of inverting polarities, etc., I called the seller and brought him the Microair. He diagnosed a blown internal fuse, due to some overvoltage or polarity inversion. But he was gracious enough not to openly saying I was the culprit...The VHF was quickly tested on the bench, with a dummy antenna load. Back to the hangar I double-checked the supplied harness and my wiring, opening every thermosleeve to make sure nothing was wrong, then my buddy reinstalled the radio. Same behavior : the VHF display stays blank, while the intercom works as expected. This time I removed the VHF from the panel myself, and guess what ? My buddy had changed the supplied black screws for SS socket screws more to his taste. And those screws seemed very long. Indeed looking into the screw holes, the PC board seemed very close... I reminded my buddy of the red notice in the manual about the screw length. Back to the dealer again, and indeed, once the radio was opened, we could clearly see where the screws had damage the PC board. The internal fused was changed once again, and the radio tested on the bench, but in the aircraft (without the screws...), the display was OK, but all I could hear was a garbled local music broadcast and no aviation transmission. The little VHF will have to be sent to an approved avionics repair shop... Morality : read the manual, and do NOT change the screws.... Best regards, Gilles Thesee http://contrails.free.fr


    Message 5


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    Time: 10:12:09 AM PST US
    From: "Carlos Trigo" <trigo@mail.telepac.pt>
    Subject: Re: radio light
    I couldn't resist to ask you 2 naughty questions: If you airplane will be used daytime vfr only, why does it have nav lights for? Second question, even if you don't want to get rid of those (perhaps useless) nav lights, are you wanting to turn them on whenever you feel you need to turn on your radio's lighting? Now more seriously, wire your radio lighting to its own power (lighting always on if the radio is on), or to the instruments lighting, if your plane has it. Carlos ----- Original Message ----- From: bob noffs To: aeroelectric list Sent: Sunday, May 27, 2007 2:38 PM Subject: AeroElectric-List: radio light hi all, i have just gotten my icom 200 wired and it works! no credit to me , i had help. the radio reqiures a separate power feed for its lighting. the plane will be used daytime vfr only. i could wire the lighting on always , wire it to go on with the nav lights, and numerous other ways. not a very big deal but i wanted to hear if there is a logical reason to do it one way versus another. thanks bob noffs


    Message 6


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    Time: 10:12:21 AM PST US
    From: David Abrahamson <dave@abrahamson.net>
    Subject: Re: Electronics stolen
    That's a terrible shame Danny. It makes me and all of us, I am sure, shudder to think of someone ripping our avionics out of the airplane. I will note your data and keep it for further reference. Best, David


    Message 7


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    Time: 12:31:02 PM PST US
    From: luigit@freemail.it
    Subject: Re: radio light
    --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found ---


    Message 8


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    Time: 01:25:15 PM PST US
    From: Daniel De Winter <daniel_de_winter@yahoo.co.uk>
    Subject: Re: Electronics stolen
    Thanks David, I hope all aviation enthousiastics will do so... Daniel ----- Original Message ---- From: David Abrahamson <dave@abrahamson.net> Sent: Sunday, 27 May, 2007 7:11:58 PM Subject: Re: AeroElectric-List: Electronics stolen That's a terrible shame Danny. It makes me and all of us, I am sure, shudder to think of someone ripping our avionics out of the airplane. I will note your data and keep it for further reference. Best, David ___________________________________________________________ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/


    Message 9


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    Time: 02:33:31 PM PST US
    From: LarryMcFarland <larry@macsmachine.com>
    Subject: Re: radio light
    Hi Luigi, I believe what you are saying is correct and if you look at the bottom diagram of the drawing I did for my ICom 200 radio and intercom set, the three wires you speak of for the mic and headset are shown. http://www.macsmachine.com/images/electrical/full/primary-wiring-(SH-2).gif Larry McFarland 601HDS at www.macsmachine.com > Hi all. > > Installing my Icom 200 I have a question. > > I have a three wire shielded cable available and I wish to use it for > the microphone and the phones jacks at the same time ,two wire for the > mike and one for the earphone, using the shield for both. Is my > project applicable ? Is there any problem arising with this scheme ? > > Thank you for the help. > > Luigi > > Rome, Italy > > >


    Message 10


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    Time: 04:17:03 PM PST US
    From: "Jeff " <jeffrey_davidson@earthlink.net>
    Subject: Garmin 327 XPDR Cable & Artex me406 ELT cable
    Bob, Working with the calculator and talking to an electrical engineer here I pretty much got an understanding of attenuation for practical purposes. I got a lead on a "sample" of RG304 that the engineer might be able to locate. Four conductor double shielded cable will work for the Artex ELT, so I'll go that route. The shield the then used as the ground connector per the Artex installation instructions. As others go the 406 route and the February 2009 date gets closer, I suspect that demand will grow. Again, thanks for the reply on a holiday weekend. Please enjoy your Memorial Day. Jeff Davidson




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