Today's Message Index:
----------------------
1. 02:28 AM - Re: Shielded Strobe Light Query (Richard Collings)
2. 04:51 AM - Re: Shielded Strobe Light Query (David Joyce)
3. 05:28 AM - Re: Shielded Strobe Light Query (Tony Renshaw)
4. 05:28 AM - Re: Shielded Strobe Light Query (GRAHAM SINGLETON)
5. 07:20 AM - Re: Shielded Strobe Light Query (h&jeuropa)
6. 03:33 PM - Re: Shielded Strobe Light Query (pestar)
7. 03:48 PM - Re: Re: Shielded Strobe Light Query (Tony Renshaw)
8. 03:55 PM - Re: Shielded Strobe Light Query (Bud Yerly)
9. 09:49 PM - Re: Re: Shielded Strobe Light Query (Tony Renshaw)
Message 1
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Subject: | Re: Shielded Strobe Light Query |
Hi Tony
Just a thought, but if your position lights are LED, ie. very low current
load, then you could use radio mic cable which you will have to get anyway
to wire in your jack plugs.
Changing the subject, I am coming down to Sydney in January next year and
would like to meet you and look at your Europa, perhaps we could arrange
something nearer the time.
Regards
Richard
-----Original Message-----
From: Tony Renshaw
Sent: Wednesday, July 30, 2014 11:40 AM
Subject: Europa-List: Shielded Strobe Light Query
Gidday,
I am using AveoflashLP Ultra Aurora Nav/Strobe lights, that have their
flasher units within the lights. There is 4 cables coming from each strobe,
and to get quad core shielded is very hard, and expensive. The suppliers dont
mention in their installation documentation that you need shielded wiring,
and yet when pushed, they do. I am wondering if I just shield the positive
cable, or whether I need to also shield the negative/earth, and the phase
wire which goes to each strobe to keep them synchronised. Id be interested
on what anyone thinks, and in fact whether shielding them all together could
introduce a specific problem rather than just having one or two of the wires
shielded.
Regards
Tony Renshaw
Sydney Aussie
Message 2
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Subject: | Re: Shielded Strobe Light Query |
Tony, Not clever enough to give you a definitive answer,
but strongly suspect you should have all wires in a single
sheath. You can incidentally buy nice cable sheath in
various diameters which you can apply easily
retrospectively over a bundle of wires. Can't remember
where I got mine from now, but I found them by googling
wire sheathing or something similar.
Regards, David Joyce, G-XSDJ
On Thu, 31 Jul 2014 10:27:43 +0100
"Richard Collings" <rcollings@talktalk.net> wrote:
><rcollings@talktalk.net>
>
> Hi Tony
> Just a thought, but if your position lights are LED, ie.
>very low current load, then you could use radio mic cable
>which you will have to get anyway to wire in your jack
>plugs.
> Changing the subject, I am coming down to Sydney in
>January next year and would like to meet you and look at
>your Europa, perhaps we could arrange something nearer
>the time.
> Regards
> Richard
>
> -----Original Message----- From: Tony Renshaw
> Sent: Wednesday, July 30, 2014 11:40 AM
> To: europa-list@matronics.com
> Subject: Europa-List: Shielded Strobe Light Query
>
><tonyrenshaw268@gmail.com>
>
> Gidday,
> I am using AveoflashLP Ultra Aurora Nav/Strobe lights,
>that have their flasher units within the lights. There is
>4 cables coming from each strobe, and to get quad core
>shielded is very hard, and expensive. The suppliers dont
>mention in their installation documentation that you need
>shielded wiring, and yet when pushed, they do. I am
>wondering if I just shield the positive cable, or whether
>I need to also shield the negative/earth, and the phase
>wire which goes to each strobe to keep them
>synchronised. Id be interested on what anyone thinks,
>and in fact whether shielding them all together could
>introduce a specific problem rather than just having one
>or two of the wires shielded.
> Regards
> Tony Renshaw
> Sydney Aussie
>
>
>
>
>
>Un/Subscription,
>Forums!
>Admin.
>
>
>
Message 3
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Subject: | Re: Shielded Strobe Light Query |
Hi David,
Thanks for that advice. I didn't know about after market shielding, nor the single
shielding. I suppose it makes sense, otherwise why have multi core with single
shielding. Amazing how a little cross pollenisation of ideas can create positive
synergy. Appreciated.
Regards
Tony Renshaw
P.S. Quad Core shielded is bloody expensive. Oh well, only have to buy it once.
(That's my wife excuse).
Sent from my iPad
> On 31 Jul 2014, at 9:50 pm, "David Joyce" <davidjoyce@doctors.org.uk> wrote:
>
>
> Tony, Not clever enough to give you a definitive answer, but strongly suspect
you should have all wires in a single sheath. You can incidentally buy nice cable
sheath in various diameters which you can apply easily retrospectively over
a bundle of wires. Can't remember where I got mine from now, but I found them
by googling wire sheathing or something similar.
> Regards, David Joyce, G-XSDJ
>
>
> On Thu, 31 Jul 2014 10:27:43 +0100
> "Richard Collings" <rcollings@talktalk.net> wrote:
>> Hi Tony
>> Just a thought, but if your position lights are LED, ie. very low current load,
then you could use radio mic cable which you will have to get anyway to wire
in your jack plugs.
>> Changing the subject, I am coming down to Sydney in January next year and would
like to meet you and look at your Europa, perhaps we could arrange something
nearer the time.
>> Regards
>> Richard
>> -----Original Message----- From: Tony Renshaw
>> Sent: Wednesday, July 30, 2014 11:40 AM
>> To: europa-list@matronics.com
>> Subject: Europa-List: Shielded Strobe Light Query
>> Gidday,
>> I am using AveoflashLP Ultra Aurora Nav/Strobe lights, that have their flasher
units within the lights. There is 4 cables coming from each strobe, and to
get quad core shielded is very hard, and expensive. The suppliers dont mention
in their installation documentation that you need shielded wiring, and yet when
pushed, they do. I am wondering if I just shield the positive cable, or whether
I need to also shield the negative/earth, and the phase wire which goes to
each strobe to keep them synchronised. Id be interested on what anyone thinks,
and in fact whether shielding them all together could introduce a specific
problem rather than just having one or two of the wires shielded.
>> Regards
>> Tony Renshaw
>> Sydney Aussie
>> Un/Subscription,
>> Forums!
>> Admin.
>
>
>
>
Message 4
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Subject: | Re: Shielded Strobe Light Query |
Tony & David=C2-=C2-=C2- =0AMy guess is that because you want to keep
RF (caused by square waves in the strobe),=0Ayou should sheath the signal
wires only.=0AFergus Kyle would know, maybe Bud does too=0AGraham=0A=0A=0A
=0A=0A________________________________=0A From: David Joyce <davidjoyce@doc
tors.org.uk>=0ATo: europa-list@matronics.com =0ASent: Thursday, 31 July 201
4, 12:50=0ASubject: Re: Europa-List: Shielded Strobe Light Query=0A =0A=0A-
=0A=0ATony, Not clever enough to give you a definitive answer, but strongly
suspect you should have all wires in a single sheath. You can incidentally
buy nice cable sheath in various diameters which you can apply easily retr
ospectively over a bundle of wires. Can't remember where I got mine from no
w, but I found them by googling wire sheathing or something similar.=0ARega
rds, David Joyce, G-XSDJ=0A=0A=0AOn Thu, 31 Jul 2014 10:27:43 +0100=0A"Rich
ard Collings" <rcollings@talktalk.net> wrote:=0A> --> Europa-List message p
osted by: "Richard Collings" <rcollings@talktalk.net>=0A> =0A> Hi Tony=0A>
Just a thought, but if your position lights are LED, ie. very low current l
oad, then you could use radio mic cable which you will have to get anyway t
o wire in your jack plugs.=0A> Changing the subject, I am coming down to Sy
dney in January next year and would like to meet you and look at your Europ
a, perhaps we could arrange something nearer the time.=0A> Regards=0A> Rich
ard=0A> =0A> -----Original Message----- From: Tony Renshaw=0A> Sent: Wednes
day, July 30, 2014 11:40 AM=0A> To: europa-list@matronics.com=0A> Subject:
Europa-List: Shielded Strobe Light Query=0A> =0A> --> Europa-List message p
osted by: Tony Renshaw <tonyrenshaw268@gmail.com>=0A> =0A> Gidday,=0A> I am
using AveoflashLP Ultra Aurora Nav/Strobe lights, that have their flasher
units within the lights. There is 4 cables coming from each strobe, and to
get quad core shielded is very hard, and expensive. The suppliers don
=99t mention in their installation documentation that you need shielded wir
ing, and yet when pushed, they do. I am wondering if I just shield the posi
tive cable, or whether I need to also shield the negative/earth, and the
=9Cphase wire=9D which goes to each strobe to keep them synchro
nised. I=99d be interested on what anyone thinks, and in fact whether
shielding them all together could introduce a specific problem rather than
just having one or two of the wires shielded.=0A> Regards=0A> Tony Renshaw
=0A> Sydney Aussie=0A> =0A> =0A> =0A> =0A> =0A> Un/Subscription,=0A> Forums
- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- -
=============
Message 5
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Subject: | Re: Shielded Strobe Light Query |
Tony,
Here is a link to AeroLED install instructions for a similar light which incorporates
position light and strobe. Just follow the AeroLED instructions. You
will only need 3 conductor shielded wire. Be sure you connect the shield, ground
wire and a physical connection to the LED assembly all together at the wingtip.
http://www.aeroleds.com/wp-content/uploads/2013/05/Pulsar-Installation-Experimental.pdf
We are using AeroLED and have no problem with noise or interference.
Jim & Heather
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=427614#427614
Message 6
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Subject: | Re: Shielded Strobe Light Query |
Tony
You can get the necessary cabling from EDMO who are aviation distributors based
out of Melbourne. I installed AeroLeds in my MCR-4S as they required the same
type of 4 +1 shielded cabling. At that time EDMO had an office at Ardmore in
New Zealand (walking distance from my hangar) so I sourced it from them at cost
significantly less than paying retail from any of the "Golden Solder" companies.
Cheers Peter
--------
Peter Armstrong
Auckland, New Zealand
DynAero MCR-4S (Do not shoot me :) ).
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=427650#427650
Message 7
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Subject: | Re: Shielded Strobe Light Query |
Hi Peter,
Thanks for that, and I'll call them soon. What's a "Golden Solder" company?
Regards
Tony R
Sent from my iPad
> On 1 Aug 2014, at 8:32 am, "pestar" <peter@reivernet.com> wrote:
>
>
> Tony
>
> You can get the necessary cabling from EDMO who are aviation distributors based
out of Melbourne. I installed AeroLeds in my MCR-4S as they required the same
type of 4 +1 shielded cabling. At that time EDMO had an office at Ardmore
in New Zealand (walking distance from my hangar) so I sourced it from them at
cost significantly less than paying retail from any of the "Golden Solder" companies.
>
> Cheers Peter
>
> --------
> Peter Armstrong
> Auckland, New Zealand
> DynAero MCR-4S (Do not shoot me :) ).
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=427650#427650
>
>
>
>
>
>
>
>
>
>
Message 8
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Subject: | Re: Shielded Strobe Light Query |
Tony,
Originally Aveo USA dealers mentioned that just a simple 18 gauge wire
unshielded was enough for a simple strobe, nav, steady flashing unit
needed. However, whenever you have a pulsing electrical device noise is
a real concern. I would prefer to use a shielded wire on the strobe
side of the wire. I'm sure you have downloaded as much as you can on
the installation, but do look at some complaints about other strobe type
led operations on emergency vehicles etc and radio interference.
We try to do our due diligence but I prefer to be on the cautious side.
Here is a comment from
http://www.emcrules.com/2011/07/radio-interference-from-led-lighting.html
<http://www.emcrules.com/2011/07/radio-interference-from-led-lighting.htm
l>
they are engineers in the lighting industry.
I quote:
However, although today=92s LEDs are capable of long life, and
delivering high light output levels with very little power consumption,
most need to be paired with a drive circuit to provide constant current
sourcing to operate in our homes and offices, and that=92s where the
problem comes in. These switching drive circuits operate at increasingly
higher frequencies, and in order to maintain the highest efficiency, and
highest LED longevity possible, they also need to maintain very high
slew rates<http://en.wikipedia.org/wiki/Slew_rate>. These factors
contribute to the overall unwanted emissions from each individual
lighting element, increasing the Electromagnetic background noise. End
quote.
This noise is in the VHF range so I have probably overcautiously decided
to install shielded wire. The Aveo circuitry is in the light itself and
a long way away from your radio gear, but noise is unwanted in a system.
Even the flap motor, so twisted pairs at a minimum should be used. See
the guys on the wiring installation attached. I talked to them. I
tested the lights near my handheld radio and they are clean until a foot
or so away, and when paired together in sync make a slight pulsed hiss.
Now if you run the blue wire to put the strobes in sync that is a long
pulsing wire. Probably should shield that one at a minimum. If you can
shield both pulsed lights and tie the shield to your main ground bus and
leave it open at the light it should work.
Some RV guys are using non shielded wire and have no complaints. Some
Zenith guys are having issues. But they both use the airframe as a
ground. We use a separate ground wire which if properly done helps with
noise.
Regards,
Bud Yerly
----- Original Message -----
From: Tony Renshaw<mailto:tonyrenshaw268@gmail.com>
To: europa-list@matronics.com<mailto:europa-list@matronics.com>
Sent: Wednesday, July 30, 2014 6:40 AM
Subject: Europa-List: Shielded Strobe Light Query
<tonyrenshaw268@gmail.com<mailto:tonyrenshaw268@gmail.com>>
Gidday,
I am using AveoflashLP Ultra Aurora Nav/Strobe lights, that have their
flasher units within the lights. There is 4 cables coming from each
strobe, and to get quad core shielded is very hard, and expensive. The
suppliers don=92t mention in their installation documentation that you
need shielded wiring, and yet when pushed, they do. I am wondering if I
just shield the positive cable, or whether I need to also shield the
negative/earth, and the =93phase wire=94 which goes to each strobe to
keep them synchronised. I=92d be interested on what anyone thinks, and
in fact whether shielding them all together could introduce a specific
problem rather than just having one or two of the wires shielded.
Regards
Tony Renshaw
Sydney Aussie
http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N
avigator?Europa-List>
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
Message 9
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Subject: | Re: Shielded Strobe Light Query |
Hi Jim and Heather,
Tried to send private message but email address below bounces. Can you give it
to me off list please?
Rgds
Tony R.
On 1 Aug 2014, at 12:19 am, h&jeuropa <butcher43@att.net> wrote:
>
> Tony,
>
> Here is a link to AeroLED install instructions for a similar light which incorporates
position light and strobe. Just follow the AeroLED instructions. You
will only need 3 conductor shielded wire. Be sure you connect the shield, ground
wire and a physical connection to the LED assembly all together at the wingtip.
>
> http://www.aeroleds.com/wp-content/uploads/2013/05/Pulsar-Installation-Experimental.pdf
>
> We are using AeroLED and have no problem with noise or interference.
>
> Jim & Heather
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=427614#427614
>
>
>
>
>
>
>
>
>
>
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