Today's Message Index:
----------------------
1. 05:01 AM - Audio panel, of sorts... (Larry Bowen)
2. 06:10 AM - electrical wiring (Dean May)
3. 06:27 AM - Re: ANL 20n current limiter source (Robert L. Nuckolls, III)
4. 06:33 AM - Re: Microair T2000 testing BLANK_LINES_70_80 (Robert L. Nuckolls, III)
5. 06:33 AM - Re: OV module on RV with 60A (Robert L. Nuckolls, III)
6. 06:34 AM - Re: OV module on RV with 60A (Robert L. Nuckolls, III)
7. 07:09 AM - Re: Microair T2000 testing BLANK_LINES_70_80 (Ken Simmons)
8. 09:49 AM - Re: Stereo (not really) intercoms (Jim and Lucy)
9. 10:20 AM - Re: Stereo (not really) intercoms (Larry Bowen)
Message 1
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| Subject: | Audio panel, of sorts... |
--> AeroElectric-List message posted by: "Larry Bowen" <Larry@BowenAero.com>
I'm finally wiring my intercom inputs as described below with a capacitor.
Does it matter which way the capacitor is oriented?
-
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
>Thanks Bob. How would I determine the size for the capacitor?
>
>-
>Larry Bowen
>Larry@BowenAero.com
>http://BowenAero.com
>2003 - The year of flight!
>
>
>> -----Original Message-----
>> From: Robert L. Nuckolls, III [mailto:bob.nuckolls@cox.net]
>> >
>> >I have 3 or 4 audio signals I need to capture somehow without a
>> >traditional audio panel. For example, nav radio, AOA, traffic
>> >detector, etc. I also have an ol' 4-place NAT intercom.
>> I'm wondering
> >if I can run the audio out from these various devices to the
> otherwise
> >unused MIC pins on the intercom. As an example, passenger 3 will
> >actually be AOA annunciation. Is there any reason why this wouldn't
> >work?
>
> This might work. You want to use a capacitor to couple audio to
> these inputs to keep the microphone DC power on these pins from
> feeding back into or being loaded by the audio sources. Headset
> audio levels are in the same ballpark as microphone levels so
> I'd say the odds are in your favor.
>
> Bob . . .
Message 2
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| Subject: | electrical wiring |
--> AeroElectric-List message posted by: "Dean May" <deanmay6@owc.net>
Bob;
I recently purchased your book "The Aeroelectric Connection" and noticed a
conflict within. In the chapter "Electromagnetic Compatibility" page 16-12, paragraph
three states "... keep fat wires away from skinny wires."
which I assume to mean that the 2 & 4 gauge wires should be in a separate conduit
from the 20 & 22 gauge wires. However, you then state in Appendix Z, Note
5; "Try to run ALL wiring in a single path down one side of the airplane. ...
Use one side for wires, the other for engine controls."
Which is correct?
Thanks
Dean May
Message 3
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| Subject: | Re: ANL 20n current limiter source |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 07:51 PM 12/18/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "Dan O'Brien" <danobrien@cox.net>
>
>Was planning to place a final order to collect remaining needs for my
>electrical system and saw that the B&C site doesn't offer ANL 20 current
>limiters. I figured this would be the right one for my #2 alternator, the
>SD-20. If not, would I do harm by substituting an ANL 40?
An ANL40 would be fine there. Alternatively you could use an
automotive in-line fuse holder for a "fat fuse" . . . there is
a line of plastic plug in fuses that are big brothers to the
ATC plastics that fit the fuseblocks. Many automotive stores
stock the Bussman HHX or something similar.
http://www.bussauto.com/pdf/inlinefuseholder.pdf
You can also buy fuses down to 20A for this holder at the same
store . . . I'd put a 30A fuse in it.
>On a similar topic, the information from Continental says that the
>alternator that comes with the engine (IO-550) provides 70 amps. Should I
>order an ANL 60 or an ANL 70 for the primary alternator?
ANL60 from B&C would be fine here. The ANL series limiters
are VERY robust compared to fuses and the potential overload
on an "undersized" limiter is not an issue.
Bob . . .
Message 4
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| Subject: | Re: Microair T2000 testing BLANK_LINES_70_80 |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 11:43 AM 12/18/2003 -0700, you wrote:
>--> AeroElectric-List message posted by: "Ken Simmons" <ken@truckstop.com>
>
>Bob,
>
>I picked up a used T2000 transponder, but I'm not ready to install yet. Is
>there a good way to test this?
>
>Specifically, my concerns are turning the thing on without an antenna. I
>know transmitters can be damaged without a proper load attached, but I'm
>not sure how a transponder works in regards to transmitting. Does it only
>repond if it's interrogated? Will it receive and interrogation signal
>without an antenna attached?
It won't talk without being interrogated. Why do you need to
turn it on if you don't intend to have an antenna connected
yet?
Bob . . .
Message 5
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| Subject: | Re: OV module on RV with 60A |
internally-regulated alt.
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
internally-regulated alt.
At 12:59 AM 12/19/2003 +0000, you wrote:
>--> AeroElectric-List message posted by: "Amit Dagan" <amitdagan@hotmail.com>
>
>Hi All,
>I would like to see a picture (or explanation) of an RV with Bob's OV module
>and relay for the 60A alt that VAN's sell.
>Thanks a lot,
>Amit, RV-7, wiring.
Not sure I understand your question. Does the alternator
you have come with a built in regulator?
Bob . . .
Message 6
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| Subject: | Re: OV module on RV with 60A |
internally-regulated alt.
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
internally-regulated alt.
At 12:59 AM 12/19/2003 +0000, you wrote:
>--> AeroElectric-List message posted by: "Amit Dagan" <amitdagan@hotmail.com>
>
>Hi All,
>I would like to see a picture (or explanation) of an RV with Bob's OV module
>and relay for the 60A alt that VAN's sell.
>Thanks a lot,
Aha! you did mention this in the subject line. Okay, you can
take any of the Z-figs and modify alternator wiring in accordance
with Z-24 . . .
See: http://www.aeroelectric.com/FAQ/Internal_Regulator/
Bob . . .
Message 7
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| Subject: | Re: Microair T2000 testing BLANK_LINES_70_80 |
--> AeroElectric-List message posted by: "Ken Simmons" <ken@truckstop.com>
It is a used unit and I guess I just wanted to make sure it would turn on(I don't
have an antenna yet). I guess the best idea is to go ahead and buy an antenna
and test it that way. I don't think that would cause any problems as long as
it's left in standby. Of course, I'm 50 miles from the nearest radar so I don't
think there would be a problem anyway.
Thanks.
Ken
---------- Original Message ----------------------------------
From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>
>At 11:43 AM 12/18/2003 -0700, you wrote:
>>--> AeroElectric-List message posted by: "Ken Simmons" <ken@truckstop.com>
>>
>>Bob,
>>
>>I picked up a used T2000 transponder, but I'm not ready to install yet. Is
>>there a good way to test this?
>>
>>Specifically, my concerns are turning the thing on without an antenna. I
>>know transmitters can be damaged without a proper load attached, but I'm
>>not sure how a transponder works in regards to transmitting. Does it only
>>repond if it's interrogated? Will it receive and interrogation signal
>>without an antenna attached?
>
> It won't talk without being interrogated. Why do you need to
> turn it on if you don't intend to have an antenna connected
> yet?
>
> Bob . . .
>
Message 8
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| Subject: | Re: Stereo (not really) intercoms |
--> AeroElectric-List message posted by: Jim and Lucy <jpollard@mnsi.net>
I have an installation manual for that intercom in the shop.
I could scan it and email it to you if you still need it.
Jim Pollard
At 08:16 PM 12/13/2003 -0500, you wrote:
>--> AeroElectric-List message posted by: "Larry Bowen" <Larry@BowenAero.com>
>
>I have a NAT AA80-001 intercom I'm trying to wire to my RV8. It seems
>that this intercom (as well as a few others I've researched) accept
>stereo input -- but have mono output. What's the point of that?! I
>have stereo headsets, jacks, music in, and music source...but mono
>coming out of the intercom. Is this a problem, or should I just tie the
>L and R together at the headset jack and press on?
>
>Also, if anyone has a soft copy of the owners/installation manual for
>the AA80-001, could you forward to me? Thanks.
>
>Thanks.
>
>-
>Larry Bowen
>Larry@BowenAero.com
>http://BowenAero.com
Message 9
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| Subject: | Re: Stereo (not really) intercoms |
--> AeroElectric-List message posted by: "Larry Bowen" <Larry@BowenAero.com>
Another gentleman already sent it to me. Thanks though.
-
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
do not archive.
Jim and Lucy said:
> --> AeroElectric-List message posted by: Jim and Lucy <jpollard@mnsi.net>
>
> I have an installation manual for that intercom in the shop.
> I could scan it and email it to you if you still need it.
>
> Jim Pollard
>
>
> At 08:16 PM 12/13/2003 -0500, you wrote:
>>--> AeroElectric-List message posted by: "Larry Bowen"
>> <Larry@BowenAero.com>
>>
>>I have a NAT AA80-001 intercom I'm trying to wire to my RV8. It seems
>>that this intercom (as well as a few others I've researched) accept
>>stereo input -- but have mono output. What's the point of that?! I
>>have stereo headsets, jacks, music in, and music source...but mono
>>coming out of the intercom. Is this a problem, or should I just tie the
>>L and R together at the headset jack and press on?
>>
>>Also, if anyone has a soft copy of the owners/installation manual for
>>the AA80-001, could you forward to me? Thanks.
>>
>>Thanks.
>>
>>-
>>Larry Bowen
>>Larry@BowenAero.com
>>http://BowenAero.com
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