Today's Message Index:
----------------------
1. 07:08 AM - Re:Re: noise in bose headsets (William Yamokoski)
2. 11:49 AM - Re: Re: noise in bose headsets (Jeff Hildebrand)
3. 12:56 PM - [Please Read] Matronics Email Server Upgrade... (Matt Dralle)
4. 05:08 PM - Re: noise in bose headsets (Dj Merrill)
5. 07:32 PM - Do I need an audio panel? (Tony Johnson)
6. 08:22 PM - AOA Pro and Garmin GMA340 (Walter Tondu)
7. 09:40 PM - Re: Do I need an audio panel? (rv-9a-online)
Message 1
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| Subject: | Re: noise in bose headsets |
--> AeroElectric-List message posted by: "William Yamokoski" <yamokosk@lakemichigancollege.edu>
Same thing going on with me. No noise in Standby. Turn it fully on
and the rhythmic clicking starts. Anyone have a fix for this?
Thanks.
Bill Yamokoski, N4970Y GlaStar
>>> buckaroo_banzai@the-pentagon.com 04/14/05 1:10 PM >>>
--> AeroElectric-List message posted by: "buck"
<buckaroo_banzai@the-pentagon.com>
Jeff,
I have a similar problem in my Cozy. I've found that the antagonist is
the
transponder. The transponder antenna is directly under the front seats
and
the airplane is fiberglass.
Greg
----------------------------------------------
Original Message
From: "Jeff Hildebrand"<jhildebrand@crownequip.com>
Subject: RE: AeroElectric-List: noise in bose headsets
>--> AeroElectric-List message posted by: "Jeff Hildebrand"
<jhildebrand@crownequip.com>
>
>The clicking is not change with RPM change or with volume up or down on
the
>intercom.
>
>I have not tried disconnecting the P-leads, or running the headset
power
>from independent batteries.
>
>I will try this next.
>
>Thanks,
>
>Jeff
>
>-----Original Message-----
>From: owner-aeroelectric-list-server@matronics.com
>[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert
L.
>Nuckolls, III
>To: aeroelectric-list@matronics.com
>Subject: Re: AeroElectric-List: noise in bose headsets
>
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
><b.nuckolls@cox.net>
>
>I'm getting into this thread late but has the propagation mode
>for the noise been identified? Does disconnection of p-leads at
>the mags make a difference? Does the noise run up and down with
>volume control setting on radios or intercom? Have victim systems
>been temporarily operated from independent batteries to see if
>noise goes away?
>
>Bob . . .
>
>
>At 07:39 AM 4/14/2005 -0500, you wrote:
>
>>--> AeroElectric-List message posted by: "cgalley" <cgalley@qcbc.org>
>>
>>The "R" in the plug number says that it is a resistor plug! Don't
think
you
>>can now buy a shielded plug that isn't a resister. Could be that the
>>resistor is bad and causing the noise. Check the gap, if it is too
wide,
>the
>>spark will find the path of least resistance.
>>
>>Cy Galley - Chair,
>>AirVenture Emergency Aircraft Repair
>>A Service Project of Chapter 75
>>EAA Safety Programs Editor - TC
>>EAA Sport Pilot
>>----- Original Message -----
>>From: "Richard Riley" <Richard@RILEY.NET>
>>To: <aeroelectric-list@matronics.com>
>>Subject: RE: AeroElectric-List: noise in bose headsets
>>
>>
>> > --> AeroElectric-List message posted by: Richard Riley
><Richard@Riley.net>
>> >
>> > OK, it's probably not applicable then. I had a very similar
problem -
>> > Bose
>> > headsets, Lyc 540, ticking with RPM. But I had lightspeed
electronic
>> > ignitions. Klaus recommended that I go to resistance spark plug
wires,
>it
>> > cured it completely. But I have no idea if it would work with
mags.
>> >
>> > At 07:30 AM 4/13/05, you wrote:
>> >>--> AeroElectric-List message posted by: "Jeff Hildebrand"
>> >><jhildebrand@crownequip.com>
>> >>
>> >>I should have made that more clear. I just have magnetos.
>> >>
>> >>Jeff
>> >
>> >
>> >
>>
>>
>>--
>>
>>
>>-- incoming mail is certified Virus Free.
>
>
> Bob . . .
>
>
> --------------------------------------------------------
> < Throughout history, poverty is the normal condition >
> < of man. Advances which permit this norm to be >
> < exceeded -- here and there, now and then -- are the >
> < work of an extremely small minority, frequently >
> < despised, often condemned, and almost always opposed >
> < by all right-thinking people. Whenever this tiny >
> < minority is kept from creating, or (as sometimes >
> < happens) is driven out of a society, the people >
> < then slip back into abject poverty. >
> < >
> < This is known as "bad luck". >
> < -Lazarus Long- >
> <------------------------------------------------------>
> http://www.aeroelectric.com
>
>
http://www.MyOwnEmail.com
Message 2
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| Subject: | noise in bose headsets |
--> AeroElectric-List message posted by: "Jeff Hildebrand" <jhildebrand@crownequip.com>
I found out it was the transponder also. As soon as I turn the transponder
off, it goes away.
Like Bill said, is there a fix?
Jeff
Lancair ES C-GSPH
www.lancaires.com
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of William
Yamokoski
Subject: Re:RE: AeroElectric-List: noise in bose headsets
--> AeroElectric-List message posted by: "William Yamokoski"
<yamokosk@lakemichigancollege.edu>
Same thing going on with me. No noise in Standby. Turn it fully on
and the rhythmic clicking starts. Anyone have a fix for this?
Thanks.
Bill Yamokoski, N4970Y GlaStar
>>> buckaroo_banzai@the-pentagon.com 04/14/05 1:10 PM >>>
--> AeroElectric-List message posted by: "buck"
<buckaroo_banzai@the-pentagon.com>
Jeff,
I have a similar problem in my Cozy. I've found that the antagonist is
the
transponder. The transponder antenna is directly under the front seats
and
the airplane is fiberglass.
Greg
----------------------------------------------
Original Message
From: "Jeff Hildebrand"<jhildebrand@crownequip.com>
Subject: RE: AeroElectric-List: noise in bose headsets
>--> AeroElectric-List message posted by: "Jeff Hildebrand"
<jhildebrand@crownequip.com>
>
>The clicking is not change with RPM change or with volume up or down on
the
>intercom.
>
>I have not tried disconnecting the P-leads, or running the headset
power
>from independent batteries.
>
>I will try this next.
>
>Thanks,
>
>Jeff
>
>-----Original Message-----
>From: owner-aeroelectric-list-server@matronics.com
>[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert
L.
>Nuckolls, III
>To: aeroelectric-list@matronics.com
>Subject: Re: AeroElectric-List: noise in bose headsets
>
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
><b.nuckolls@cox.net>
>
>I'm getting into this thread late but has the propagation mode
>for the noise been identified? Does disconnection of p-leads at
>the mags make a difference? Does the noise run up and down with
>volume control setting on radios or intercom? Have victim systems
>been temporarily operated from independent batteries to see if
>noise goes away?
>
>Bob . . .
>
>
>At 07:39 AM 4/14/2005 -0500, you wrote:
>
>>--> AeroElectric-List message posted by: "cgalley" <cgalley@qcbc.org>
>>
>>The "R" in the plug number says that it is a resistor plug! Don't
think
you
>>can now buy a shielded plug that isn't a resister. Could be that the
>>resistor is bad and causing the noise. Check the gap, if it is too
wide,
>the
>>spark will find the path of least resistance.
>>
>>Cy Galley - Chair,
>>AirVenture Emergency Aircraft Repair
>>A Service Project of Chapter 75
>>EAA Safety Programs Editor - TC
>>EAA Sport Pilot
>>----- Original Message -----
>>From: "Richard Riley" <Richard@RILEY.NET>
>>To: <aeroelectric-list@matronics.com>
>>Subject: RE: AeroElectric-List: noise in bose headsets
>>
>>
>> > --> AeroElectric-List message posted by: Richard Riley
><Richard@Riley.net>
>> >
>> > OK, it's probably not applicable then. I had a very similar
problem -
>> > Bose
>> > headsets, Lyc 540, ticking with RPM. But I had lightspeed
electronic
>> > ignitions. Klaus recommended that I go to resistance spark plug
wires,
>it
>> > cured it completely. But I have no idea if it would work with
mags.
>> >
>> > At 07:30 AM 4/13/05, you wrote:
>> >>--> AeroElectric-List message posted by: "Jeff Hildebrand"
>> >><jhildebrand@crownequip.com>
>> >>
>> >>I should have made that more clear. I just have magnetos.
>> >>
>> >>Jeff
>> >
>> >
>> >
>>
>>
>>--
>>
>>
>>-- incoming mail is certified Virus Free.
>
>
> Bob . . .
>
>
> --------------------------------------------------------
> < Throughout history, poverty is the normal condition >
> < of man. Advances which permit this norm to be >
> < exceeded -- here and there, now and then -- are the >
> < work of an extremely small minority, frequently >
> < despised, often condemned, and almost always opposed >
> < by all right-thinking people. Whenever this tiny >
> < minority is kept from creating, or (as sometimes >
> < happens) is driven out of a society, the people >
> < then slip back into abject poverty. >
> < >
> < This is known as "bad luck". >
> < -Lazarus Long- >
> <------------------------------------------------------>
> http://www.aeroelectric.com
>
>
http://www.MyOwnEmail.com
--
--
--
Message 3
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| Subject: | [Please Read] Matronics Email Server Upgrade... |
--> AeroElectric-List message posted by: Matt Dralle <dralle@matronics.com>
Dear Listers,
I will be upgrading the Matronics Email Server this weekend. This includes
some hardware improvements - more memory, faster, more capable processors -
as well as a complete operating system upgrade from scratch. I hope to
have both the old system and the new system running at the same time to
minimize the actual impact of the upgrade.
Hopefully there will be little actual downtime during the transition, but a
few posts may get lost in the shuffle. If you don't see your post show up
on the List in the normal amount of time (plus a little bit), then please
just try posting it again.
Upgrading the Matronics Email Server operating system (from Redhat Linux
7.2 to Redhat Linux WS 4) is a sizeable undertaking and requires a great
deal of work to port all of the utilities, programs, and scripts over to
the new system. As I've already mentioned, both the old and new systems
will be on line at the same time, so interruption should be held to an
absolute minimal. You might see a couple of odd test messages during the
cut-over or other odd messages; please just ignore them.
I have setup a new System Status Web Page that I will use to update List
Members on the current status of the email and web systems. Please refer
to it as often as you like:
http://www.matronics.com/SystemStatus/
Thank you for your continued support of the List Services at
Matronics! Its your yearly Contributions that make these major upgrades
possible!
Best regards,
Matt Dralle
Matronics Email List Administrator
Message 4
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| Subject: | Re: noise in bose headsets |
--> AeroElectric-List message posted by: Dj Merrill <deej@thayer.dartmouth.edu>
Jeff Hildebrand wrote:
> --> AeroElectric-List message posted by: "Jeff Hildebrand" <jhildebrand@crownequip.com>
>
> I found out it was the transponder also. As soon as I turn the transponder
> off, it goes away.
>
> Like Bill said, is there a fix?
You could try one of the radio shack noise filters in-line
with the transponder power feed.
Do you have the battery powered Bose headsets or the
ones powered from the aircraft power? If aircraft power,
you could try one of the noise filters in-line with the
headset power feed.
Is your transponder antenna cable running near the
headset cables? You might try moving them farther apart.
Just some thoughts...
-Dj
Message 5
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| Subject: | Do I need an audio panel? |
--> AeroElectric-List message posted by: "Tony Johnson" <tonyjohnson@cfl.rr.com>
I am considering the options for configuring the RV8A that I am building,
with respect to controlling the intercom, radios and audio inputs. Perhaps
some of you who have been where I am now in the process can share your
experiences and thoughts.
I have not yet decided whether to have two panel mounted com radios, or have
only one and use a handheld as a backup. That decision my drive other
decisions. I am trying to figure out if I need an audio panel, or whether I
can save that expense and panel space. I would like to be able to do the
following:
1. Have an intercom
2. Listen to stereo music
3. Have the music mute for radio traffic or intercom communications
4. Hear audio warnings from my AOA and engine monitor
5. Switch radios, if I decide to use a second comm. Radio
I know that there are audio panels that will allow me to do all of the
above, but they are expensive. There are intercoms that will do most of the
above. Dave Clark makes a small intercom that has stereo and can switch
between radios. It is about $700. I do not know if it will allow audio
inputs for warnings.
I am using an infinity grip, and would like to switch between radios and
flip-flop channels using the cooley hat switch. Even if I could arrange to
do that without an audio panel, how would I be able to tell which radio I am
connected to? Perhaps a light on the panel?
It may be simpler just to go with an audio panel in the long run, if I
decide to use two comm radios. If I use only one panel mounted radio I will
save the cost of both the second radio, and the audio panel. I am leaning
in that direction.
Any input or suggestions would be appreciated.
Tony Johnson
RV8A Orlando
Message 6
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| Subject: | AOA Pro and Garmin GMA340 |
--> AeroElectric-List message posted by: Walter Tondu <walter@tondu.com>
I'm a bit stumped. Specifically, which pin on the Garmin 340 does the AOA audio
get wired too? It's the last wire I have to run. It's killing me.
Do you just tap into an existing wire?
Thanks,
--
Walter Tondu
http://www.rv7-a.com
getting close.
Message 7
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| Subject: | Re: Do I need an audio panel? |
--> AeroElectric-List message posted by: rv-9a-online <rv-9a-online@telus.net>
Tony, the capability you want is only available in an Audio Panel.
On the other hand, if you don't need to switch radio transmitters, then
you can get away with an intercom.
As for the music input, some intercoms will support it, and some won't.
You'll end up paying for the feature in dollars and complexity.
PS Engineering makes a nice 2" audio panel that does not take a lot of
space, just bucks.
At the other end of the spectrum you can use a Sigtronics SPA-400 or
Sport-200 with a Vx Aviation Audio Bus
(http://www3.telus.net/aviation/vx). This will give you all of the
basic functionality, but not the bells and wistles, and is much easier
to wire up than any intercom or audio panel available. The audio system
is the most complex avionics component in the aircraft because of all
the shielded wire connections.
I am using an SL-40 comm that has dual watch capability (two receivers,
one transmitter). This provides 95% of the functionality of two radios
except the redundant transmitter. I have wired a Bob Archer wingtip VOR
antenna to my portable Nav/Com (VXA-700) that can be used as a Comm
transmitter in a pinch.
Thus, I have a primary comm (SL-40) with dual watch, and my handheld for
backup and VOR capability.
I have audio inputs as well, but not with auto-mute. It's possible to
add an external in-line unit for your headset that will do this.
Vern Little RV-9A
Tony Johnson wrote:
>--> AeroElectric-List message posted by: "Tony Johnson" <tonyjohnson@cfl.rr.com>
>
>I am considering the options for configuring the RV8A that I am building,
>with respect to controlling the intercom, radios and audio inputs. Perhaps
>some of you who have been where I am now in the process can share your
>experiences and thoughts.
>
>
>I have not yet decided whether to have two panel mounted com radios, or have
>only one and use a handheld as a backup. That decision my drive other
>decisions. I am trying to figure out if I need an audio panel, or whether I
>can save that expense and panel space. I would like to be able to do the
>following:
>
>
>1. Have an intercom
>2. Listen to stereo music
>3. Have the music mute for radio traffic or intercom communications
>4. Hear audio warnings from my AOA and engine monitor
>5. Switch radios, if I decide to use a second comm. Radio
>
>
>I know that there are audio panels that will allow me to do all of the
>above, but they are expensive. There are intercoms that will do most of the
>above. Dave Clark makes a small intercom that has stereo and can switch
>between radios. It is about $700. I do not know if it will allow audio
>inputs for warnings.
>
>
>I am using an infinity grip, and would like to switch between radios and
>flip-flop channels using the cooley hat switch. Even if I could arrange to
>do that without an audio panel, how would I be able to tell which radio I am
>connected to? Perhaps a light on the panel?
>
>
>It may be simpler just to go with an audio panel in the long run, if I
>decide to use two comm radios. If I use only one panel mounted radio I will
>save the cost of both the second radio, and the audio panel. I am leaning
>in that direction.
>
>
>Any input or suggestions would be appreciated.
>
>
>Tony Johnson
>
>RV8A Orlando
>
>
>
>
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