Today's Message Index:
----------------------
1. 06:32 AM - Re[2]: Re: Windows crashes (Freddie Freeloader)
2. 06:46 AM - Fw: VIRUS (Dave)
3. 06:59 AM - Re: Fw: VIRUS ()
4. 07:03 AM - Re: Fw: VIRUS (Werner Schneider)
5. 07:09 AM - Fw: VIRUS ()
6. 07:13 AM - Re: Fw: VIRUS (Bill Steer)
7. 07:13 AM - Re: Fw: VIRUS (Canyon)
8. 07:18 AM - Re: Fw: VIRUS - Virus hoax (richard@riley.net)
9. 07:24 AM - Re: Fw: VIRUS (Rob Housman)
10. 07:26 AM - Re: Fw: VIRUS (Ageless Wings)
11. 07:56 AM - Re: Pilot Automotive landing lights (Jerzy Krasinski)
12. 08:10 AM - Re: Fw: VIRUS (Dave)
13. 09:06 AM - Re: Fw: VIRUS (John Rourke)
14. 09:08 AM - Re: Fw: VIRUS (Canyon)
15. 10:19 AM - Re: Fw: VIRUS (Matt Prather)
16. 11:20 AM - Re: Fw: VIRUS (John Rourke)
17. 11:53 AM - Pilot Automotive landing lights (BAKEROCB@aol.com)
18. 11:53 AM - Automobile lights (BAKEROCB@aol.com)
19. 12:25 PM - Re: Automobile lights (Mark Steitle)
20. 12:27 PM - Re: Radio Noise (MikeM)
21. 12:34 PM - Re: Fw: VIRUS (Hebeard2@aol.com)
22. 01:23 PM - Re: Automobile lights (Mark Phillips)
23. 01:30 PM - Re: Pilot Automotive landing lights (Robert L. Nuckolls, III)
24. 01:43 PM - Looking for Howard Rogers (Mark Phillips)
25. 01:50 PM - Re: Looking for Howard Rogers (Mark Phillips)
26. 01:50 PM - Re: Re: Radio Noise ()
27. 02:26 PM - Re: Re: Radio Noise (Canyon)
28. 07:19 PM - Automobile lights (Tom...)
Message 1
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| Subject: | RE: Windows crashes |
--> AeroElectric-List message posted by: Freddie Freeloader <lists@stevet.net>
Hello Don,
Wednesday, June 18, 2003, 11:54:23 PM, you wrote:
-->> AeroElectric-List message posted by: "Don Honabach" <don@pcperfect.com>
DH> We've found that if you leave the core OS alone, Windows 2000/XP
DH> will run practically forever without crashing. The more stuff that
DH> goes into overlaying with the core OS and generally the more
DH> problems you have (i.e. filter drivers for firewalls and virus
DH> protection or badly written drivers), but I'm still impressed with
DH> how much abuse these newer OSes take and keep working.
Seems to me that you are saying if you use the system, it crashes, and
if you don't use the system, it is very stable. Duh?
--
Best regards,
Freddie mailto:lists@stevet.net
Message 2
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--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
----- Original Message -----
From: Steve Weiner
Subject: VIRUS
>Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
>your address book as well. Simply follow the directions below to get it
>out of your system.
>
>Unfortunately, a virus has been passed on to me by a contact. My address
>book WAS infected.
>
>Since you are in my address book, there is a good chance you will find
>it in your computer too. The virus (called jdbgmgr.exe) is not detected by
>Norton or McAfee antivirus systems. The virus sits quietly for 14 days before
>damaging the system. It is sent automatically by messenger and by the
>address book, whether or not you sent e-mail to your contacts.
>
>Here's how to check for the virus and how to get rid of it:
>
>YOU MUST DO THIS.
>
>1. Go to start, Find or search option.
>
>2. In the file folder option, type the name jdbgmgr.exe
>
>3. Be sure you search your C: drive and all subfolders and any other
>drives
>you may have.
>4. Click "find now"
>
>5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
>IT!
>
>6. Go to Edit (on the menu bar) and choose "select all" to highlight the
>file without opening it.
>
>7. Now go to File (on the menu bar) and select delete. It will then go
>to
>the Recycle Bin.
>
>8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
>BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
>
>To Do This:
>
>a) Open a new e-mail message
>
>b) Click the icon of the address book next to the "TO"
>
>c) Highlight every name and add to "BCC" (which means blind copy)
>
>d) Copy this message and paste to e-mail
Message 3
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--> AeroElectric-List message posted by: <315@cox.net>
This is a hoax as outlined on the Norton website:
http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html
Ned
----- Original Message -----
From: "Dave" <dave@bestnetpc.com>
Subject: AeroElectric-List: Fw: VIRUS
> --> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
> ----- Original Message -----
> From: Steve Weiner
> To: sweiner16@comcast.net
> Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
> >Unfortunately, a virus has been passed on to me by a contact. My address
> >book WAS infected.
> >
> >Since you are in my address book, there is a good chance you will find
> >it in your computer too. The virus (called jdbgmgr.exe) is not detected
by
> >Norton or McAfee antivirus systems. The virus sits quietly for 14 days
before
> >damaging the system. It is sent automatically by messenger and by the
> >address book, whether or not you sent e-mail to your contacts.
> >
> >Here's how to check for the virus and how to get rid of it:
> >
> >YOU MUST DO THIS.
> >
> >1. Go to start, Find or search option.
> >
> >2. In the file folder option, type the name jdbgmgr.exe
> >
> >3. Be sure you search your C: drive and all subfolders and any other
> >drives
> >you may have.
> >4. Click "find now"
> >
> >5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
> >IT!
> >
> >6. Go to Edit (on the menu bar) and choose "select all" to highlight the
> >file without opening it.
> >
> >7. Now go to File (on the menu bar) and select delete. It will then go
> >to
> >the Recycle Bin.
> >
> >8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
> >BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
> >
> >To Do This:
> >
> >a) Open a new e-mail message
> >
> >b) Click the icon of the address book next to the "TO"
> >
> >c) Highlight every name and add to "BCC" (which means blind copy)
> >
> >d) Copy this message and paste to e-mail
>
>
Message 4
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--> AeroElectric-List message posted by: "Werner Schneider" <wernerschneider@compuserve.com>
Hello Dave,
this is a HOAX, DO NOT APPLY THIS!!!!
see http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file
Please check always when you get such messages trying to imply the virus
scanner does not detect.
Kind regards
Werner
----- Original Message -----
From: "Dave" <dave@bestnetpc.com>
Subject: AeroElectric-List: Fw: VIRUS
> --> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
> ----- Original Message -----
> From: Steve Weiner
> To: sweiner16@comcast.net
> Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
> >Unfortunately, a virus has been passed on to me by a contact. My address
> >book WAS infected.
> >
> >Since you are in my address book, there is a good chance you will find
> >it in your computer too. The virus (called jdbgmgr.exe) is not detected
by
> >Norton or McAfee antivirus systems. The virus sits quietly for 14 days
before
> >damaging the system. It is sent automatically by messenger and by the
> >address book, whether or not you sent e-mail to your contacts.
> >
> >Here's how to check for the virus and how to get rid of it:
> >
> >YOU MUST DO THIS.
> >
> >1. Go to start, Find or search option.
> >
> >2. In the file folder option, type the name jdbgmgr.exe
> >
> >3. Be sure you search your C: drive and all subfolders and any other
> >drives
> >you may have.
> >4. Click "find now"
> >
> >5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
> >IT!
> >
> >6. Go to Edit (on the menu bar) and choose "select all" to highlight the
> >file without opening it.
> >
> >7. Now go to File (on the menu bar) and select delete. It will then go
> >to
> >the Recycle Bin.
> >
> >8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
> >BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
> >
> >To Do This:
> >
> >a) Open a new e-mail message
> >
> >b) Click the icon of the address book next to the "TO"
> >
> >c) Highlight every name and add to "BCC" (which means blind copy)
> >
> >d) Copy this message and paste to e-mail
>
>
Message 5
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--> AeroElectric-List message posted by: <315@cox.net>
This is a hoax as outlined on the Norton website:
http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html
Ned
----- Original Message -----
From: "Dave" <dave@bestnetpc.com>
Subject: AeroElectric-List: Fw: VIRUS
> --> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
> ----- Original Message -----
> From: Steve Weiner
> To: sweiner16@comcast.net
> Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
> >Unfortunately, a virus has been passed on to me by a contact. My address
> >book WAS infected.
> >
> >Since you are in my address book, there is a good chance you will find
> >it in your computer too. The virus (called jdbgmgr.exe) is not detected
by
> >Norton or McAfee antivirus systems. The virus sits quietly for 14 days
before
> >damaging the system. It is sent automatically by messenger and by the
> >address book, whether or not you sent e-mail to your contacts.
> >
> >Here's how to check for the virus and how to get rid of it:
> >
> >YOU MUST DO THIS.
> >
> >1. Go to start, Find or search option.
> >
> >2. In the file folder option, type the name jdbgmgr.exe
> >
> >3. Be sure you search your C: drive and all subfolders and any other
> >drives
> >you may have.
> >4. Click "find now"
> >
> >5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
> >IT!
> >
> >6. Go to Edit (on the menu bar) and choose "select all" to highlight the
> >file without opening it.
> >
> >7. Now go to File (on the menu bar) and select delete. It will then go
> >to
> >the Recycle Bin.
> >
> >8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
> >BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
> >
> >To Do This:
> >
> >a) Open a new e-mail message
> >
> >b) Click the icon of the address book next to the "TO"
> >
> >c) Highlight every name and add to "BCC" (which means blind copy)
> >
> >d) Copy this message and paste to e-mail
>
>
Message 6
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--> AeroElectric-List message posted by: "Bill Steer" <bsteer@gwi.net>
This is a hoax, intended to cause undue concern. jdbgmgr.exe is a legitimate
file. For any doubters, check the www.symantec.com web site.
Bill
----- Original Message -----
From: "Dave" <dave@bestnetpc.com>
Subject: AeroElectric-List: Fw: VIRUS
> --> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
> ----- Original Message -----
> From: Steve Weiner
> To: sweiner16@comcast.net
> Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
> >Unfortunately, a virus has been passed on to me by a contact. My address
> >book WAS infected.
> >
> >Since you are in my address book, there is a good chance you will find
> >it in your computer too. The virus (called jdbgmgr.exe) is not detected by
> >Norton or McAfee antivirus systems. The virus sits quietly for 14 days before
> >damaging the system. It is sent automatically by messenger and by the
> >address book, whether or not you sent e-mail to your contacts.
> >
> >Here's how to check for the virus and how to get rid of it:
> >
> >YOU MUST DO THIS.
> >
> >1. Go to start, Find or search option.
> >
> >2. In the file folder option, type the name jdbgmgr.exe
> >
> >3. Be sure you search your C: drive and all subfolders and any other
> >drives
> >you may have.
> >4. Click "find now"
> >
> >5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
> >IT!
> >
> >6. Go to Edit (on the menu bar) and choose "select all" to highlight the
> >file without opening it.
> >
> >7. Now go to File (on the menu bar) and select delete. It will then go
> >to
> >the Recycle Bin.
> >
> >8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
> >BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
> >
> >To Do This:
> >
> >a) Open a new e-mail message
> >
> >b) Click the icon of the address book next to the "TO"
> >
> >c) Highlight every name and add to "BCC" (which means blind copy)
> >
> >d) Copy this message and paste to e-mail
>
>
Message 7
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--> AeroElectric-List message posted by: Canyon <steve.canyon@verizon.net>
Sorry Dave -- you've been suckered. This is not a virus -- it is a
hoax and the file is a normal part of Windows. Don not delete the file...
Please refrain from propagating virus alerts -- Everyone should take
responsibility for their own system and it should stop there.
Dave wrote:
>--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
>----- Original Message -----
>From: Steve Weiner
>To: sweiner16@comcast.net
>Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could
> be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
---
Message 8
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|
| Subject: | Re: Fw: VIRUS - Virus hoax |
--> AeroElectric-List message posted by: richard@riley.net
http://www.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html
Type: <http://securityresponse.symantec.com/avcenter/refa.html#hoax>Hoax
This hoax, like
the<http://securityresponse.symantec.com/avcenter/venc/data/sulfnbk.exe.warning.html>
SULFNBK.EXE Warning hoax, tries to encourage you to delete a legitimate
Windows file from your computer. Jdbgmgr.exe is the file to which the hoax
refers, and it is the Microsoft Debugger Registrar for Java. The
Jdbgmgr.exe file may be installed when you install Windows.
NOTE: Recent versions of this hoax take advantage of the recent outbreak of
the
<http://securityresponse.symantec.com/avcenter/venc/data/w32.bugbear@mm.html>W32.bugbear@mm
worm. The Jdbgmgr.exe file mentioned in the hoax has a bear icon. The
actual
<http://securityresponse.symantec.com/avcenter/venc/data/w32.bugbear@mm.html>W32.bugbear@mm
worm file is a .exe file and does not have a bear icon.
The Windows Jdbgmgr.exe file has a teddy bear icon in the hoax, as
illustrated below:
CAUTION: A virus can infect Jdbgmgr.exe. The
<http://www.symantec.com/avcenter/venc/data/w32.efortune.31384@mm.html>W32.Efortune.31384@mm
virus in particular targets this file. Norton AntiVirus has provided
protection against W32.Efortune.31384@mm since May 11, 2001.
NOTE: If you have already deleted the Jdbgmgr.exe file, in most cases, you
do not need to re-install it. The following quote is extracted from the
Microsoft Knowledge Base article,
"<http://support.microsoft.com/default.aspx?scid=kb;en-us;Q322993>Virus
Hoax: Microsoft Debugger Registrar for Java (Jdbgmgr.exe) Is Not a Virus
(Q322993)."
"The Microsoft Debugger Registrar for Java (Jdbgmgr.exe) is only used by
Microsoft Visual J++ 1.1 developers.
If you follow the e-mail message instructions and delete this file, you do
not have to recover it unless you use Microsoft Visual J++ 1.1 to develop
Java programs on Windows XP, Windows NT 4.0, Windows 98 Second Edition,
Windows 98, or Windows 95."
If you need to restore this file, follow the instructions in
"<http://support.microsoft.com/default.aspx?scid=kb;en-us;Q322993>Virus
Hoax: Microsoft Debugger Registrar for Java (Jdbgmgr.exe) Is Not a Virus
(Q322993)."
At 09:50 AM 6/19/03 -0400, you wrote:
>--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
>----- Original Message -----
>From: Steve Weiner
>To: sweiner16@comcast.net
>Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
> >Unfortunately, a virus has been passed on to me by a contact. My address
> >book WAS infected.
> >
> >Since you are in my address book, there is a good chance you will find
> >it in your computer too. The virus (called jdbgmgr.exe) is not detected by
> >Norton or McAfee antivirus systems. The virus sits quietly for 14 days
> before
> >damaging the system. It is sent automatically by messenger and by the
> >address book, whether or not you sent e-mail to your contacts.
> >
> >Here's how to check for the virus and how to get rid of it:
> >
> >YOU MUST DO THIS.
> >
> >1. Go to start, Find or search option.
> >
> >2. In the file folder option, type the name jdbgmgr.exe
> >
> >3. Be sure you search your C: drive and all subfolders and any other
> >drives
> >you may have.
> >4. Click "find now"
> >
> >5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
> >IT!
> >
> >6. Go to Edit (on the menu bar) and choose "select all" to highlight the
> >file without opening it.
> >
> >7. Now go to File (on the menu bar) and select delete. It will then go
> >to
> >the Recycle Bin.
> >
> >8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
> >BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
> >
> >To Do This:
> >
> >a) Open a new e-mail message
> >
> >b) Click the icon of the address book next to the "TO"
> >
> >c) Highlight every name and add to "BCC" (which means blind copy)
> >
> >d) Copy this message and paste to e-mail
>
>
Message 9
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--> AeroElectric-List message posted by: "Rob Housman" <RobH@hyperion-ef.com>
This is probably a hoax, NOT a virus. The JDBGMGR.EXE file is a legit
Windows operating system file, see
http://www.vmyths.com/hoax.cfm?id=275&page=3 for details.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airfarame complete
Irvine, CA
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Dave
Subject: AeroElectric-List: Fw: VIRUS
--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
----- Original Message -----
From: Steve Weiner
Subject: VIRUS
>Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
>your address book as well. Simply follow the directions below to get it
>out of your system.
>
>Unfortunately, a virus has been passed on to me by a contact. My address
>book WAS infected.
>
>Since you are in my address book, there is a good chance you will find
>it in your computer too. The virus (called jdbgmgr.exe) is not detected by
>Norton or McAfee antivirus systems. The virus sits quietly for 14 days
before
>damaging the system. It is sent automatically by messenger and by the
>address book, whether or not you sent e-mail to your contacts.
>
>Here's how to check for the virus and how to get rid of it:
>
>YOU MUST DO THIS.
>
>1. Go to start, Find or search option.
>
>2. In the file folder option, type the name jdbgmgr.exe
>
>3. Be sure you search your C: drive and all subfolders and any other
>drives
>you may have.
>4. Click "find now"
>
>5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
>IT!
>
>6. Go to Edit (on the menu bar) and choose "select all" to highlight the
>file without opening it.
>
>7. Now go to File (on the menu bar) and select delete. It will then go
>to
>the Recycle Bin.
>
>8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
>BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
>
>To Do This:
>
>a) Open a new e-mail message
>
>b) Click the icon of the address book next to the "TO"
>
>c) Highlight every name and add to "BCC" (which means blind copy)
>
>d) Copy this message and paste to e-mail
Message 10
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--> AeroElectric-List message posted by: "Ageless Wings" <harley@agelesswings.com>
DO NOT DELETE JDBMGR.EXE ... THIS IS A HOAX...THAT PROGRAM IS NECESSARY FOR
YOUR BROWSER.
Here's a little more on it:
>Recently there has been some panic about "jdbgmgr.exe", a supposed
>virus which isn't detected by most virus scanners.
>
>jdbgmgr.exe is the Java Debugger Manager. This is a well known hoax and
>not a virus (there is one well known virus which targets jdbgmgr.exe,
>but it is detected by the major anti-virus products and can be cleaned
>without deleting the file).
>
>See:
>
><http://securityresponse.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.h
oax.html>
>
>for details about the hoax.
>
>In general, you should be wary of any virus warning that advises you that
>standard virus scanners will not detect it. The anti-virus companies
>are pretty good at responding quickly to new virii.
>
>If you receive a message like this, please check something like the
>Symantec Online Virus and Hoax Encyclopedia:
>
><http://www.symantec.com/avcenter/vinfodb.html>
>
>or contact us (security@uchicago.edu) before spreading the word.
Harley
============================================================================
===================
>> -----Original Message-----
>> From: owner-aeroelectric-list-server@matronics.com
>> [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Dave
>> Sent: Thursday, June 19, 2003 9:50 AM
>> To: Undisclosed-Recipient:@matronics.com;
>> Subject: AeroElectric-List: Fw: VIRUS
>>
>>
>> --> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>>
>>
>> ----- Original Message -----
>> From: Steve Weiner
>> To: sweiner16@comcast.net
>> Subject: VIRUS
>>
>>
>> >Yes, this virus by-passed my Norton Anti-Virus System; so it could be in
>> >your address book as well. Simply follow the directions below to get it
>> >out of your system.
>> >
>> >Unfortunately, a virus has been passed on to me by a contact. My address
>> >book WAS infected.
>> >
>> >Since you are in my address book, there is a good chance you will find
>> >it in your computer too. The virus (called jdbgmgr.exe) is not
>> detected by
>> >Norton or McAfee antivirus systems. The virus sits quietly for
>> 14 days before
>> >damaging the system. It is sent automatically by messenger and by the
>> >address book, whether or not you sent e-mail to your contacts.
>> >
>> >Here's how to check for the virus and how to get rid of it:
>> >
>> >YOU MUST DO THIS.
>> >
>> >1. Go to start, Find or search option.
>> >
>> >2. In the file folder option, type the name jdbgmgr.exe
>> >
>> >3. Be sure you search your C: drive and all subfolders and any other
>> >drives
>> >you may have.
>> >4. Click "find now"
>> >
>> >5. The Virus has a Teddy Bear icon with the name jdbgmgr.exe DO NOT OPEN
>> >IT!
>> >
>> >6. Go to Edit (on the menu bar) and choose "select all" to highlight the
>> >file without opening it.
>> >
>> >7. Now go to File (on the menu bar) and select delete. It will then go
>> >to
>> >the Recycle Bin.
>> >
>> >8. IF YOU FIND THE VIRUS YOU MUST CONTACT ALL THE PEOPLE IN YOUR ADDRESS
>> >BOOK, SO THEY CAN ERADICATE IT IN THEIR OWN ADDRESS BOOKS.
>> >
>> >To Do This:
>> >
>> >a) Open a new e-mail message
>> >
>> >b) Click the icon of the address book next to the "TO"
>> >
>> >c) Highlight every name and add to "BCC" (which means blind copy)
>> >
>> >d) Copy this message and paste to e-mail
>>
>>
>>
>>
>>
>>
>>
Message 11
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| Subject: | Re: Pilot Automotive landing lights |
--> AeroElectric-List message posted by: Jerzy Krasinski <krasinski@direcway.com>
>
>
>>--> AeroElectric-List message posted by: "Rob Housman" <RobH@hyperion-ef.com>
>>
>>Both Xe and HID lamps are gas discharge lamps, with the primary advantage of
>>being resistant to damage from vibration (no filament to break), and since
>>there is no free lunch the disadvantage of both is initial cost especially
>>for Xe lamps which require an expensive high voltage power supply. Both
>>types provide illumination that is closer to daylight than tungsten or
>>halogen lamps - Xe is essentially the same color temperature as sunlight
>>which is why Xe lamps are used for studio lighting and cinema projection.
>>
>>
In fact that is not the only type of bright Xenon lamp used in
automotive. There are also incandescent bulbs that are filled with
Xenon. Xenon atoms are heavy and slow moving, and that makes a low heat
conductivity of the gas. As a result the filament looses less heat due
to gas heat conductivity and takes less electric power to get hot and
produce the light output. In addition heavy Xenon makes a good
protection against evaporation of Tungsten, many Tungsten atoms which
got eveporated are pushed back after collisions with Xenon atoms. That
offers much longer lifetime of the filament in regular operating
temperature, or it allows operation in a higher temperature with
increased output and whiter light. I did not see such lights with high
power good for landing lights, but there are many bright Xenon filled
bulbs good for nav lights. They are used in automotive left/right
flashers and they sell ~$10 per package of two bulbs.
Jerzy
>>
>>
Message 12
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--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
Suckered? Well maybe... I had to reformat my computer a while back after a virus
slipped by my protection. I'd rather inform those that may be affected.
As far as propagating virus alerts and simply taking care of my system and letting
it end there... I'll make sure you're not notified when a real hazard surfaces.
If you read the Windows page on this file, it's used by advanced script writers
and has no foul deleting. For those who have, simply reinstall it.
The first Aero Electric lister who replied that this was indeed a hoax was appreciated,
and forwarded to those that got the alert.
Steve, you take care of yourself, but I'd still appreciate any alerts from others.
Now, do you really want to know how I'd like to respond to your slam, or should
we get back to wiring?
Dave
----- Original Message -----
From: Canyon
To: aeroelectric-list@matronics.com
Sent: Thursday, June 19, 2003 10:12 AM
Subject: Re: AeroElectric-List: Fw: VIRUS
--> AeroElectric-List message posted by: Canyon <steve.canyon@verizon.net>
Sorry Dave -- you've been suckered. This is not a virus -- it is a
hoax and the file is a normal part of Windows. Don not delete the file...
Please refrain from propagating virus alerts -- Everyone should take
responsibility for their own system and it should stop there.
Dave wrote:
>--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>
>----- Original Message -----
>From: Steve Weiner
>To: sweiner16@comcast.net
>Subject: VIRUS
>
>
> >Yes, this virus by-passed my Norton Anti-Virus System; so it could
> be in
> >your address book as well. Simply follow the directions below to get it
> >out of your system.
> >
---
Message 13
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--> AeroElectric-List message posted by: John Rourke <jrourke@allied-computer.com>
Dave, Dave.... don't you see???? Virus alerts are fine if you only send
them to people if you *know* you had a virus, and you *know* there's a
chance you sent it to them (always check snopes.com or
urbanlegends.com/ulz/ first)... but any "alert" that says "SEND IT TO
EVERYONE IN YOUR ADDRESS BOOK" is recruiting *YOU* to *BE* the virus!
Get it? They don't have to write any code to replicate the message
across the internet clogging everything up, they let *you*, and those
you send it to, do it for them!!
Besides, you didn't just send one message; you actually sent hundreds
(or thousands?), one to each person on this aeroelectric list; if anyone
wants to continue propogating alerts (whether or not they are hoaxes),
at least keep it to personal emails, and off any email lists, please.
-John
P.S.: This is not a slam - merely an attempt to educate.
Dave wrote:
>--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
>Suckered? Well maybe... I had to reformat my computer a while back after a virus
slipped by my protection. I'd rather inform those that may be affected.
>As far as propagating virus alerts and simply taking care of my system and letting
it end there... I'll make sure you're not notified when a real hazard surfaces.
>If you read the Windows page on this file, it's used by advanced script writers
and has no foul deleting. For those who have, simply reinstall it.
>The first Aero Electric lister who replied that this was indeed a hoax was appreciated,
and forwarded to those that got the alert.
>Steve, you take care of yourself, but I'd still appreciate any alerts from others.
>Now, do you really want to know how I'd like to respond to your slam, or should
we get back to wiring?
>Dave
>
>----- Original Message -----
> From: Canyon
> To: aeroelectric-list@matronics.com
> Sent: Thursday, June 19, 2003 10:12 AM
> Subject: Re: AeroElectric-List: Fw: VIRUS
>
>
> --> AeroElectric-List message posted by: Canyon <steve.canyon@verizon.net>
>
> Sorry Dave -- you've been suckered. This is not a virus -- it is a
> hoax and the file is a normal part of Windows. Don not delete the file...
>
> Please refrain from propagating virus alerts -- Everyone should take
> responsibility for their own system and it should stop there.
>
> Dave wrote:
> >--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
> >
> >
> >----- Original Message -----
> >From: Steve Weiner
> >To: sweiner16@comcast.net
> >Subject: VIRUS
> >
> >
> > >Yes, this virus by-passed my Norton Anti-Virus System; so it could
> > be in
> > >your address book as well. Simply follow the directions below to get it
> > >out of your system.
> > >
> ---
>
>
>
>
Message 14
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--> AeroElectric-List message posted by: Canyon <steve.canyon@verizon.net>
Dave wrote:
>Steve, you take care of yourself, but I'd still appreciate any alerts
>from others.
>Now, do you really want to know how I'd like to respond to your slam,
>or should we get back to wiring?
---
Wiring is a fine topic for this list -- sending virus alerts that are
not real to a large mailing list is anything but good netiquette
whether you think so or not. As you can see it just creates a huge
response from people who would like to help you understand the nature
of these virus alert posts.
And if the virus is real, I don't know anyone knowledgeable about the
problem who does not use a good antivirus package -- they're free or
cheap and very good at handling these problems.
If I can help you set something up for your own use, by all means let
me know privately and I'll be glad to help out anyway I can. You'd be
surprised probably at just how many times someone receives a virus
alert or a real virus and then immediately sends it to every address
they can find. That action quite often just results in many more
infections, especially on lists that allow scripts and/or
attachments. Real or imagined, just cause lots of bad results.
And I am very pleased that you'll not send more of them to me. Thanks
for your understanding.
Regards,
Steve
Message 15
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--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
Sending out warnings and alerts without checking them out is a
disservice when either the warning is a hoax or a virus carrier
itself. While it may be tempting to send out a warning at the earliest
time, checking out whether the warning is valid is easy and
eliminates discussions and message exchanges like this.
> --> AeroElectric-List message posted by: John Rourke
> <jrourke@allied-computer.com>
>
> Dave, Dave.... don't you see???? Virus alerts are fine if you only send
> them to people if you *know* you had a virus, and you *know* there's a
> chance you sent it to them (always check snopes.com or
> urbanlegends.com/ulz/ first)... but any "alert" that says "SEND IT TO
> EVERYONE IN YOUR ADDRESS BOOK" is recruiting *YOU* to *BE* the virus!
> Get it? They don't have to write any code to replicate the message
snip
Maybe everyone could at least try to remember to put a 'do not archive' in
messages not relevant to the list subject...
Regards,
Matt Prather
N34RD
do not archive
Message 16
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--> AeroElectric-List message posted by: John Rourke <jrourke@allied-computer.com>
>
>
>snip
>
>Maybe everyone could at least try to remember to put a 'do not archive' in
>messages not relevant to the list subject...
>
>Regards,
>
>Matt Prather
>N34RD
>
>
Thanks for the reminder, Matt, I rarely post anything off-topic, so I've
never thought about that! (I guess we can all learn something...)
-John
(Got it this time! ;-)
do not archive
Message 17
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| Subject: | Pilot Automotive landing lights |
--> AeroElectric-List message posted by: BAKEROCB@aol.com
AeroElectric-List message previously posted by: "rwilliams"
<rwilliams@C1ama.net>
<<.....skip.....What are the FAA requirements (if any) for landing lights?
Thanks! Bob Williams >>
6/19/2003
Hello Bob, FAR Sec 91.205 "Powered civil aircraft with standard category US
airworthiness certificates: Instrument and equipment requirements." will be
made applicable to an ABEA (Amateur Built Experimental Aircraft) by wording in
the Operating Limitations for that aircraft.
Paragraph (c) of this Section is "Visual flight rules (night)". Sub
paragraph (c) (4) says "If the aircraft is operated for hire, one electric landing
light."
Since one cannot operate an ABEA for hire there would be no regulatory
requirement for an ABEA to have a landing light.
If one wanted to know what the requirements are for landing light performance
in a type certificated aircraft one would look in Part 23.1383. After you
have done that you can explain to the rest of us what halation is. Thanks.
'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/?
Message 18
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| Subject: | Automobile lights |
--> AeroElectric-List message posted by: BAKEROCB@aol.com
AeroElectric-List message previously posted by: Mark Steitle
<msteitle@mail.utexas.edu>
<<OC, Bob has referenced a small, compact automotive headlight, #4352 that
is
only about 1-3/4 tall and about 5-1/2" wide. I have been going through the
same dilemma as you and I went and bought a #4352 type recently and it is a
very small, rectangular shaped sealed halogen unit. With that said, you
got my interest with the dual beamed Pilot unit. Price is quite a bit more
than the 4352 ($24.99 @ Auto Zone), but it seems worth it. Can you buy
those locally, or do you have to order them from Pilot? Mark S. >>
6/19/2003
Hello Mark, I bought my Pilot lights from an Auto Zone store that had a Pilot
catalog. I looked in the catalog and picked out the ones that I wanted and
they ordered them for me. I don't know if Pilot will sell direct, but you can
find their lights on some other internet automobile parts / accessories sellers.
One other factor that went into me rejecting the OEM lights was the fact that
most of them had a unique / proprietory connector on the rear of the sealed
beam lens unit. To get the matching connector one had to go to the automobile
dealer and pay big bucks for the matching connector (often more than the light
itself from the after market store).
Also there was the added weight of the connector. I suppose one could just
solder to the tabs or what ever is on the back of the glass blob, but I went
with the aftermarket driving lights.
Are you having any problems coming up with a mounting scheme for the #4352?
'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/?
Message 19
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| Subject: | Re: Automobile lights |
--> AeroElectric-List message posted by: Mark Steitle <msteitle@mail.utexas.edu>
><snip>
>Are you having any problems coming up with a mounting scheme for the #4352?
>
>'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/?
><snip>
OC,
I've given it some thought, but no firm solutions yet. (Working on FWF at
present.) The 4352 has two "half-moon" shaped bosses on each end of the
bulb that should work pretty good for an up/down adjustment. And with a
little thought it should be possible to make these adjustable fore/aft for
right/left adjustment.
How did you mount the PL-1068 bulbs? Or do they come with a mounting
bracket? (any pics?)
Mark S.
Message 20
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Ron Hopkins" <RHopkins@utah.gov>
--> AeroElectric-List message posted by: MikeM <mladejov@ced.utah.edu>
On Wed, 18 Jun 2003, AeroElectric-List Digest Server wrote:
> ________________________________ Message 3 _____________________________________
> From: RVEIGHTA@aol.com
> Bob, I have a Microair radio which has worked perfectly during taxi tests of
> my RV-8A, but recently on my first flight, although my ground crew had heard
> me perfectly when I taxiied out to the runway, once I was in the air, they
> heard nothing but static when I transmitted.
>
> I have since tracked the noise down to my turn coordinator. When the turn
> coordinator is not running, transmissions are clear. When it is, i'm unreadable.
> Does the turn coordinator require a shielded power supply wire?
>
> Walt Shipley
Walt,
Turn coordinators generate brush hash (arcing) when running.
The current being drawn by the turn coordinator is chopped by
the carbon brushes riding on a segmented copper commutator.
The current pulsations produce audible hash, which can get into
your mic or headphone audio... This problem is a good object
lesson to those who are in the process of wiring an aircraft
from scratch.
My 35 year old Cessna has an electrolytic bypass capacitor
dangling from the leads going into the turn coordinator
connector, placed there by the factory. The capacitor is 100uF
at 25V. I'm sure the Cessna boys added this capacitor as an
afterthought to cure your problem... It works by smoothing the
current flow into the turn coordinator, but it is a bandaid, and
would not have been needed if Cessna had used proper grounding
techniques and had understood the concept of "single point
ground" when they wired in the radios...
The root problem is likely how you did your grounds.
The current flows to the turn coordinator from the positive post
of the battery, flows along various distribution busses, and
finally arrives at the + input of the turn coordinator. Current
flows through the turn coordinator windings, and flows out of
the minus pin at the rear of the turn coordinator, and then has
to flow back to the negative post of the battery. The big
question is what path does the "ground return" current take?,
and is this path shared by any of your audio wiring?
In aluminum monocoque aircraft, the fuselage structure is
usually used as the "return ground" for everything in the
airplane, including the biggest noise sources: alternator,
strobes, electric gyros, engine instruments, transponder, and
magnetos.
The audio devices: radios, intercom, entertainment system must
also be connected to "ground", and how these low-level audio
devices will be effected by the "noise sources" is dependant on
what path their "grounds" take in getting to the battery
negative post!!!!
For example, the minus lead of your turn coordinator is likely
grounded to the airframe a few inches away from where it is
mounted in the panel, and the turn coordinator current flows
along the airframe seeking to get back to the battery minus
post.
The airframe has a finite, albeit small resistance. The "noise
sources" I mentioned above (turn coordinator, alternator,
strobes, etc) all draw or produce amps of current which pulse
at frequencies which can be heard (50-5000 Hz). If the audio
devices are also "grounded" to the airfame at various locations,
then the voltage drops along the airframe structure couple into
the audio circuits. This is called "common mode" coupling, and
can be dealt with by using the concept called "single point
ground".
In order to prevent contamination of the audio ( mic and
headphone) by the "noise sources", it is necessary to isolate
(from airframe) all of the grounds from the various comm radios,
the intercom, the mic and headphone jacks, the cabin
loudspeaker, the entertainment system, alarm tone generators,
etc. You have to route all of these ground wires and connect
them to a "single ground lug". You also have to "isolate" all of
the mic and headphone jacks by using non-conductive shoulder
washers on the sleeve of the jacks to prevent the sleeve from
touching the airframe whereever the jacks are installed.
Ideally, none of the radios, jacks, etc would touch the
airframe. There would be no path to ground except at the "single
point ground lug". However, in practice the radios/intercoms/
have internal connections which tie the "Power ground pin" to
the sheet metal enclosure that surrounds the radio, as well at
to the various audio grounds, usually labelled with names like
"mic low", "audio ground", "audio common", etc. Just by sliding
the radio into its tray, it connects elecrtrically to the
panel where the trays are mounted in the "radio stack".
The best you can do under these circumstances is to make the
panel where the radios are mounted be the local "single-point
ground" point for all of the audio devices. This works fine for
all of the audio devices which are mounted in the panel, but
what to do with audio devices which are not. This means that the
power grounds from the various radios run from their rear panel
connector to a ground lug on the rear of the insturment panel.
For example, when I was getting the "factory-installed"
alternator whine out of my Cessna, I had to "unground" the
overhead cabin speaker by removing the 2" wire which formerly
went from one of the speaker terminals to a speaker mounting
screw. I replaced the 2" wire with a 5' wire which ran down the
door post to the "single point ground" under the instrument
panel. This step cured hearing the alternator whine in the
speaker.
Since you are stuck using the instrument panel as the "single
point ground field" for all of the radios and audio sources, it
is not a good idea to "ground" any of the high noise sources to
the panel; rather these should be grounded closer to the
battery's negative post. If your turn coordinator is grounded
near your radio, you could lengthen the minus lead and run it to
where your battery ground strap.
So, here are the steps I would go through to cure your problem:
Do them one at a time until you cure the problem.
1. Bypass the leads to the TC with a capacitor (quick fix, if it
works)
2. Unground the TC, and run a longer ground wire from the TC all
the way to battery negative post.
3. Float the mic/headphone jacks using plastic bushings, and add
a ground wire from the jack sleeves to the same point where the
radio is now grounded.
4. Reconnect all of the audio/radio device grounds from
whereever they are now to a single ground lug attached to the
panel.
Mike Mladejovsky, PhDEE
Skylane '1MM
Pacer '00Z
Message 21
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--> AeroElectric-List message posted by: Hebeard2@aol.com
The Teddy Bear virus is a hoax. goto:
<A HREF="http://www.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html">http://www.symantec.com/avcenter/venc/data/jdbgmgr.exe.file.hoax.html
Harley
Message 22
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| Subject: | Re: Automobile lights |
--> AeroElectric-List message posted by: Mark Phillips <ripsteel@edge.net>
You also might want to consider this product made by Hella:
http://www.hellausa.com/optilux/productpages/model1500.html
I "auditioned" several units from Pilot et al including the one with the
lenses (stay away from these unless you want to melt your fairing!) and
these little suckers really threw a flame- pretty much a "spot" type
light but with one in each of my sheared style wingtips, should work
fairly well. (one low, one high, wig-wag on both) They will also accept
100w bulbs if ya want to test the envelope! 8-) I got 'em at Autozone
but they wouldn't come up in their online catalog- about $35 bux...
From The PossumWorks in TN
Mark
BAKEROCB@aol.com wrote:
> --> AeroElectric-List message posted by: BAKEROCB@aol.com
>
> AeroElectric-List message previously posted by: Mark Steitle
> <msteitle@mail.utexas.edu>
>
> <<OC, Bob has referenced a small, compact automotive headlight, #4352 that
> is
> only about 1-3/4 tall and about 5-1/2" wide. I have been going through the
> same dilemma as you and I went and bought a #4352 type recently and it is a
> very small, rectangular shaped sealed halogen unit. With that said, you
> got my interest with the dual beamed Pilot unit. Price is quite a bit more
> than the 4352 ($24.99 @ Auto Zone), but it seems worth it. Can you buy
> those locally, or do you have to order them from Pilot? Mark S. >>
>
> 6/19/2003
>
> Hello Mark, I bought my Pilot lights from an Auto Zone store that had a Pilot
> catalog. I looked in the catalog and picked out the ones that I wanted and
> they ordered them for me. I don't know if Pilot will sell direct, but you can
> find their lights on some other internet automobile parts / accessories sellers.
>
> One other factor that went into me rejecting the OEM lights was the fact that
> most of them had a unique / proprietory connector on the rear of the sealed
> beam lens unit. To get the matching connector one had to go to the automobile
> dealer and pay big bucks for the matching connector (often more than the light
> itself from the after market store).
>
> Also there was the added weight of the connector. I suppose one could just
> solder to the tabs or what ever is on the back of the glass blob, but I went
> with the aftermarket driving lights.
>
> Are you having any problems coming up with a mounting scheme for the #4352?
>
> 'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/?
>
>
>
>
>
>
>
>
Message 23
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|
| Subject: | Re: Pilot Automotive landing lights |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>Your comment on the "invisibility" of HID lamps in bright daylight was
>very interesting and something I never would have thought of.
>I am building a Zenith CH801 STOL aircraft and was thinking of using HID
>lamps as taxi/landing lights. Would it be advantageous to put a light
>yellow filter of some sort over the lens to "warm up" the color
>temperature a bit so that the output would be readily visible in daylight?
I suppose one could do that. Frankly, given the life of modern
halogen automotive lamps and their very low cost combined with
the way we use/need lighting, I think they're an excellent
value. I can't see putting hundreds of dollars into a landing
light system that gets used perhaps an hour a year.
I'd rather put that money into another GPS or a second commm
or something much more useful.
Bob . . .
--------------------------------------------
( Knowing about a thing is different than )
( understanding it. One can know a lot )
( and still understand nothing. )
( C.F. Kettering )
--------------------------------------------
Message 24
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| Subject: | Looking for Howard Rogers |
--> AeroElectric-List message posted by: Mark Phillips <ripsteel@edge.net>
My messages to you are being returned, please contact directly!
do not archive
Message 25
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| Subject: | Re: Looking for Howard Rogers |
--> AeroElectric-List message posted by: Mark Phillips <ripsteel@edge.net>
Howard, even direct contact is returned- please contact me @
ripsteel@edge.net & let's see if THAT works!
(apologies to the list!)
do not archive
Mark Phillips wrote:
> --> AeroElectric-List message posted by: Mark Phillips <ripsteel@edge.net>
>
> My messages to you are being returned, please contact directly!
>
> do not archive
>
>
>
>
>
>
>
>
Message 26
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--> AeroElectric-List message posted by: <racker@rmci.net>
I have the same turn coordinator with the same noise problem. My aircraft
has all device grounds running to a common single point ground, all audio
is isolated (however, my battery current runs (-) to (+) <g>).
Fabricated Bob's RS filter last night, post results after I fly it. Any
others have luck curing the Wultrad TC blues?
Rob Acker (RV-6, flying)
do not archive
> --> AeroElectric-List message posted by: MikeM <mladejov@ced.utah.edu>
>
> On Wed, 18 Jun 2003, AeroElectric-List Digest Server wrote:
>
>> ________________________________ Message 3
>> _____________________________________ From: RVEIGHTA@aol.com
>> Bob, I have a Microair radio which has worked perfectly during taxi
>> tests of my RV-8A, but recently on my first flight, although my ground
>> crew had heard me perfectly when I taxiied out to the runway, once I
>> was in the air, they heard nothing but static when I transmitted.
>>
>> I have since tracked the noise down to my turn coordinator. When the
>> turn coordinator is not running, transmissions are clear. When it is,
>> i'm unreadable. Does the turn coordinator require a shielded power
>> supply wire?
>>
>> Walt Shipley
>
> Walt,
>
> Turn coordinators generate brush hash (arcing) when running.
> The current being drawn by the turn coordinator is chopped by
> the carbon brushes riding on a segmented copper commutator.
> The current pulsations produce audible hash, which can get into
> your mic or headphone audio... This problem is a good object
> lesson to those who are in the process of wiring an aircraft
> from scratch.
>
> My 35 year old Cessna has an electrolytic bypass capacitor
> dangling from the leads going into the turn coordinator
> connector, placed there by the factory. The capacitor is 100uF
> at 25V. I'm sure the Cessna boys added this capacitor as an
> afterthought to cure your problem... It works by smoothing the
> current flow into the turn coordinator, but it is a bandaid, and
> would not have been needed if Cessna had used proper grounding
> techniques and had understood the concept of "single point
> ground" when they wired in the radios...
>
> The root problem is likely how you did your grounds.
> The current flows to the turn coordinator from the positive post
> of the battery, flows along various distribution busses, and
> finally arrives at the + input of the turn coordinator. Current
> flows through the turn coordinator windings, and flows out of
> the minus pin at the rear of the turn coordinator, and then has
> to flow back to the negative post of the battery. The big
> question is what path does the "ground return" current take?,
> and is this path shared by any of your audio wiring?
>
> In aluminum monocoque aircraft, the fuselage structure is
> usually used as the "return ground" for everything in the
> airplane, including the biggest noise sources: alternator,
> strobes, electric gyros, engine instruments, transponder, and
> magnetos.
>
> The audio devices: radios, intercom, entertainment system must
> also be connected to "ground", and how these low-level audio
> devices will be effected by the "noise sources" is dependant on
> what path their "grounds" take in getting to the battery
> negative post!!!!
>
> For example, the minus lead of your turn coordinator is likely
> grounded to the airframe a few inches away from where it is
> mounted in the panel, and the turn coordinator current flows
> along the airframe seeking to get back to the battery minus
> post.
>
> The airframe has a finite, albeit small resistance. The "noise
> sources" I mentioned above (turn coordinator, alternator,
> strobes, etc) all draw or produce amps of current which pulse
> at frequencies which can be heard (50-5000 Hz). If the audio
> devices are also "grounded" to the airfame at various locations,
> then the voltage drops along the airframe structure couple into
> the audio circuits. This is called "common mode" coupling, and
> can be dealt with by using the concept called "single point
> ground".
>
> In order to prevent contamination of the audio ( mic and
> headphone) by the "noise sources", it is necessary to isolate
> (from airframe) all of the grounds from the various comm radios,
> the intercom, the mic and headphone jacks, the cabin
> loudspeaker, the entertainment system, alarm tone generators,
> etc. You have to route all of these ground wires and connect
> them to a "single ground lug". You also have to "isolate" all of
> the mic and headphone jacks by using non-conductive shoulder
> washers on the sleeve of the jacks to prevent the sleeve from
> touching the airframe whereever the jacks are installed.
>
> Ideally, none of the radios, jacks, etc would touch the
> airframe. There would be no path to ground except at the "single
> point ground lug". However, in practice the radios/intercoms/
> have internal connections which tie the "Power ground pin" to
> the sheet metal enclosure that surrounds the radio, as well at
> to the various audio grounds, usually labelled with names like
> "mic low", "audio ground", "audio common", etc. Just by sliding
> the radio into its tray, it connects elecrtrically to the
> panel where the trays are mounted in the "radio stack".
>
> The best you can do under these circumstances is to make the
> panel where the radios are mounted be the local "single-point
> ground" point for all of the audio devices. This works fine for
> all of the audio devices which are mounted in the panel, but
> what to do with audio devices which are not. This means that the
> power grounds from the various radios run from their rear panel
> connector to a ground lug on the rear of the insturment panel.
>
> For example, when I was getting the "factory-installed"
> alternator whine out of my Cessna, I had to "unground" the
> overhead cabin speaker by removing the 2" wire which formerly
> went from one of the speaker terminals to a speaker mounting
> screw. I replaced the 2" wire with a 5' wire which ran down the
> door post to the "single point ground" under the instrument
> panel. This step cured hearing the alternator whine in the
> speaker.
>
> Since you are stuck using the instrument panel as the "single
> point ground field" for all of the radios and audio sources, it
> is not a good idea to "ground" any of the high noise sources to
> the panel; rather these should be grounded closer to the
> battery's negative post. If your turn coordinator is grounded
> near your radio, you could lengthen the minus lead and run it to
> where your battery ground strap.
>
> So, here are the steps I would go through to cure your problem:
> Do them one at a time until you cure the problem.
>
> 1. Bypass the leads to the TC with a capacitor (quick fix, if it
> works)
>
> 2. Unground the TC, and run a longer ground wire from the TC all
> the way to battery negative post.
>
> 3. Float the mic/headphone jacks using plastic bushings, and add
> a ground wire from the jack sleeves to the same point where the
> radio is now grounded.
>
> 4. Reconnect all of the audio/radio device grounds from
> whereever they are now to a single ground lug attached to the
> panel.
>
> Mike Mladejovsky, PhDEE
> Skylane '1MM
> Pacer '00Z
>
>
Message 27
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--> AeroElectric-List message posted by: Canyon <steve.canyon@verizon.net>
racker@rmci.net wrote:
>however, my battery current runs (-) to (+) <g>
---
Oh no! Haven't heard the hole/electron flow discussed in a long time. :-)
Steve
do not archive
Message 28
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| Subject: | Automobile lights |
--> AeroElectric-List message posted by: "Tom..." <tsled@pacbell.net>
You can find all different styles on E-bay.
Tom...
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
<<OC, Bob has referenced a small, compact automotive headlight, #4352 that
is
only about 1-3/4 tall and about 5-1/2" wide. I have been going through the
same dilemma as you and I went and bought a #4352 type recently and it is a
very small, rectangular shaped sealed halogen unit. With that said, you
got my interest with the dual beamed Pilot unit. Price is quite a bit more
than the 4352 ($24.99 @ Auto Zone), but it seems worth it. Can you buy
those locally, or do you have to order them from Pilot?
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