Today's Message Index:
----------------------
0. 12:08 AM - Just A Few More Days... (Matt Dralle)
1. 11:35 AM - Use of Ferrite Cores & RFI (steve v)
2. 12:24 PM - Re: Use of Ferrite Cores & RFI (Tim Ward)
3. 12:42 PM - Re: Use of Ferrite Cores & RFI (steve v)
4. 12:51 PM - Re: Use of Ferrite Cores & RFI (timward)
5. 02:10 PM - Re: Re: Europa - Extra Gas/ Instrument Rating. (William Harrison)
6. 03:02 PM - Re: Use of Ferrite Cores & RFI (ALAN YERLY)
7. 04:29 PM - Re: Europa - Extra Gas/ Instrument Rating. (rampil)
8. 04:36 PM - Re: Use of Ferrite Cores & RFI (rampil)
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| Subject: | Just A Few More Days... |
Dear Listers,
There are just a few more days left in this year's List Fund Raiser. There are
some great gifts available when you make a qualifying Contribution and there's
plenty still available. Don't forget that its *your* Contribution that keeps
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If you look forward to reading your List email each day, won't you please take
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Thank you for your support!
Matt Dralle
Message 1
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| Subject: | Use of Ferrite Cores & RFI |
Hi, I seem to be getting an increase in RF Interference on transmit since fitting
the Airmaster AP337 Prop. & AC200 Controller, has anyone fitted or experimented
with Ferrite Cores on the cabling to reduce this or, should i be looking
elswhere? Receive is fine,
Steve #573 G-CEBV
Visit - www.EuropaOwners.org
Message 2
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| Subject: | Re: Use of Ferrite Cores & RFI |
Steve,
Martin, from Airmaster, told me to 'ground wire' the base of the AC 200
controller unit somewhere. Worked with my one.
Cheers,
Tim
Tim Ward
12 Waiwetu Street
Fendalton,
Christchurch
NEW ZEALAND
PH 0064 3 3515166
MOB 021 0640221
ward.t@xtra.co.nz
----- Original Message -----
From: "steve v " <s@vestuti.orangehome.co.uk>
Sent: Thursday, November 27, 2008 8:33 AM
Subject: Europa-List: Use of Ferrite Cores & RFI
>
> Hi, I seem to be getting an increase in RF Interference on transmit since
> fitting the Airmaster AP337 Prop. & AC200 Controller, has anyone fitted
> or experimented with Ferrite Cores on the cabling to reduce this or,
> should i be looking elswhere? Receive is fine,
>
> Steve #573 G-CEBV
>
>
> Visit - www.EuropaOwners.org
>
>
>
Message 3
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| Subject: | Re: Use of Ferrite Cores & RFI |
Tim,
Do i still use the power conector ground or cut it, and use the new casing ground
cable?
Steve #573 G-CEBV
Visit - www.EuropaOwners.org
Message 4
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| Subject: | Re: Use of Ferrite Cores & RFI |
Steve,
No don't cut the earth. Just earth the base of the unit.
Tim
Visit - www.EuropaOwners.org
Message 5
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| Subject: | Re: Europa - Extra Gas/ Instrument Rating. |
These are good subjects to link as concentrating on IFR flying with a
full bladder is 10x harder than when VFR. I used to use a
"Littlejohn" in the PA 28 but the seat angle and cockpit size of the
Europa makes this impractical...
Anyway guys, I heard a rumour that our glider pilot brothers use a
kind of exterior catheter device (designed for incontinent men) to
enable them to do in-flight defuelling. Leaving aside the toilet
humour associated with this, does anyone know anything about this?
Willie Harrison
G-BZNY: another 20 hours this month
On 20 Nov 2008, at 16:19, rampil wrote:
>
> Hey Bud!
>
> Ya know, if you fit a long range tank to my Europa,
> I can get my buddies to fit you with your own long range tank!
>
> ;-)
>
> ijr
>
> --------
> Ira N224XS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=215347#215347
>
>
Message 6
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| Subject: | Re: Use of Ferrite Cores & RFI |
Steve,
I don't use the ferrite cores anymore. Sorry.
I have found that any Integrated Circuit device in an instrument panel
running near the coax antenna cables or your com leads is suspect.
I learned my lessons with the Blue Mountain and the early video display
EFIS units.
Those of us who have chased noise before have learned to do the
following:
Shield any com wire or com component completely with the shields of all
com leads grounded together at the radio exactly as the manufacturer
calls for. Those convenient grounds for Com Low or PTT can cause
trouble.
Do not run any component with a voltage regulator or IC circuit or their
in/outputs parallel with com wires or radio back without shielding or
ample separation.
That includes the Airmaster controller. I would suspect the
power/ground wires may be near a com lead. You may need to shield the
power wires but I doubt it. Try a simple shield ground to the case on
an Airmaster controller as a start. That will tell you who the culprit
is and may even do the trick.
I've never had the Airmaster cause noise I could hear, but I've always
practiced the above. Check that you haven't re-arranged other wires
when installing the Airmaster controller which would make a here to for
unknown problem rear its head.
Good Luck, You'll enjoy the prop.
Bud Yerly
Custom Flight Creations
----- Original Message -----
From: steve v <mailto:s@vestuti.orangehome.co.uk>
To: europa-list@matronics.com<mailto:europa-list@matronics.com>
Sent: Wednesday, November 26, 2008 2:33 PM
Subject: Europa-List: Use of Ferrite Cores & RFI
<s@vestuti.orangehome.co.uk<mailto:s@vestuti.orangehome.co.uk>>
Hi, I seem to be getting an increase in RF Interference on transmit
since fitting the Airmaster AP337 Prop. & AC200 Controller, has anyone
fitted or experimented with Ferrite Cores on the cabling to reduce this
or, should i be looking elswhere? Receive is fine,
Steve #573 G-CEBV
Visit - www.EuropaOwners.org<http://www.europaowners.org/>
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N
avigator?Europa-List>
Message 7
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| Subject: | Re: Europa - Extra Gas/ Instrument Rating. |
Believe it or not, it is called a "Texas" catheter, as opposed to the
indwelling "Foley" catheter. Available at your local pharmacy.
I don't imagine it requires a physician's prescription to purchase.
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=216470#216470
Message 8
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| Subject: | Re: Use of Ferrite Cores & RFI |
Do you still have RFI when you pull the breaker on the Prop Control?
Do you have noise when the engine is off?
Do you have noise when the prop is changing pitch?
Respectively these circumstances could implicate the control box,
the brush plate, or the pitch motor.
If you really want diagnostic help, then it would be helpful to provide a useful
amount of information.
Bud: Ferrite beads and cores have been tremendously oversold as a
panacea, but for specific applications and circumstances they are champs.
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=216473#216473
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