Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Head Set Jack shoring out

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> AeroElectric-List
View previous topic :: View next topic  
Author Message
emrath(at)comcast.net
Guest





PostPosted: Mon Oct 20, 2008 3:52 pm    Post subject: Head Set Jack shoring out Reply with quote

Bob,

I received this message from a FBO where I rent planes. Any idea why this
is even possible?

"When flying Diamond aircraft at Wings of Eagles, headsets MUST be plugged
in BEFORE turning the radios on. If this procedure is not followed, it
could result in the headset jack shorting out, which renders the jack
inoperative & obviously not being able to communicate effectively. Your
adherence to this practice will result in a more pleasant flight experience
and less aircraft down time due to maintenance. Thank you in advance for
your cooperation"

Marty RV6A Finishing.
Brentwood TN


- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
nuckolls.bob(at)cox.net
Guest





PostPosted: Mon Oct 20, 2008 7:19 pm    Post subject: Head Set Jack shoring out Reply with quote

At 06:49 PM 10/20/2008 -0500, you wrote:
Quote:


Bob,

I received this message from a FBO where I rent planes. Any idea why this
is even possible?

"When flying Diamond aircraft at Wings of Eagles, headsets MUST be plugged
in BEFORE turning the radios on. If this procedure is not followed, it
could result in the headset jack shorting out, which renders the jack
inoperative & obviously not being able to communicate effectively. Your
adherence to this practice will result in a more pleasant flight experience
and less aircraft down time due to maintenance. Thank you in advance for
your cooperation"

I am unaware of the physics that might justify such a protocol.
It is true that for stereo headphones and depending on the
design of the jack, right and left channels can be momentarily
shorted together but I'm betting these are not stereo headset
installations . . . and even so, momentary shorts between channels
shouldn't be big deal.

I've never encountered a microphone or headset installation
where engaging or disengaging the connector while the radios
are ON presents any kind of risk to the equipment. It would
be interesting to talk to the technicians who are making repairs
alleged to have been precipitated by ungraceful mating of
headset connectors.

Bob. . .


- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
emrath(at)comcast.net
Guest





PostPosted: Wed Oct 22, 2008 6:27 pm    Post subject: Head Set Jack shoring out Reply with quote

Bob,
I spoke to the electric man at our airport about this issue. He claims that
the jacks have a 28v tip to accommodate BOSE head sets in the plane. It
seems that the shorting occurs when the jack in plugged in which shorts out
the audio panel's modulation side of panel. Does this make any sense?

Marty

Time: 08:19:34 PM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob(at)cox.net>
Subject: Re: Head Set Jack shoring out

At 06:49 PM 10/20/2008 -0500, you wrote:
Quote:

Bob,

I received this message from a FBO where I rent planes. Any idea why
this is even possible?

"When flying Diamond aircraft at Wings of Eagles, headsets MUST be
plugged in BEFORE turning the radios on. If this procedure is not
followed, it could result in the headset jack shorting out, which
renders the jack inoperative & obviously not being able to communicate
effectively. Your adherence to this practice will result in a more
pleasant flight experience and less aircraft down time due to
maintenance. Thank you in advance for your cooperation"

I am unaware of the physics that might justify such a protocol.
It is true that for stereo headphones and depending on the
design of the jack, right and left channels can be momentarily
shorted together but I'm betting these are not stereo headset
installations . . . and even so, momentary shorts between channels
shouldn't be big deal.

I've never encountered a microphone or headset installation
where engaging or disengaging the connector while the radios
are ON presents any kind of risk to the equipment. It would
be interesting to talk to the technicians who are making repairs
alleged to have been precipitated by ungraceful mating of
headset connectors.

Bob. . .
M


- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> AeroElectric-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group