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Frankd
Joined: 28 Mar 2008
Posts: 64
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 Posted: Sat May 05, 2012 4:55 pm Post subject: Ignition noise suppression on Jabiru 2200 |
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Hello Kolbers,
The question of noise has been raised in the past and I'm looking for anyone with a Jabiru 2200 who has been successful in reducing radio noise created by the ignition system on the Jab.
My Mk3 Xtra is VERY noisy and the radio picks up a ton of static noise I believe is generated by the ignition of the engine. The engine itself is very loud decibel wise but I dealing with that with a noise canceling headset.
If I could eliminate the radio interference I would be a much happier pilot, then I could hear other flyers in the pattern.
My ideas include putting a metal shield in the front part of the motor over the distributors and flywheel which generates the spark.. I'm also searching for shielded spark plug cables..
Any ideas are welcome.
Frankd
Mk3 Xtra, 1014S
23 hrs into initial 40,
no bent gear yet!
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byoungplumbing(at)gmail.c
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| Posted: Sat May 05, 2012 5:30 pm Post subject: Ignition noise suppression on Jabiru 2200 |
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The question of noise has been raised in the past and I'm looking for anyone with a Jabiru 2200 who has been successful in reducing radio noise created by the ignition system on the Jab.
Frankd
Mk3 Xtra, 1014S
I cant help with the Jab... but on the 912. I put a large capacitor across the battery, double what they call for, if you are using power from the plane for the radio, a teroidal coil between the aircraft battery and the radio, both positive and negative wires. and an additional capacitor at the radio will help. also I made my wires from the cdi boxes to the kill switches out of coax, this shields the cdi noise from getting out. keep the antenna as far away as practical, mine is in the nose cone.
resistor plugs or resistor plug caps may help. I have not had to do that.
if you have questions ask away, maybe a Jab owner has other tips.
boyd young
mkiii
utah
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Sat May 05, 2012 5:36 pm Post subject: Ignition noise suppression on Jabiru 2200 |
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resistor plugs or resistor plug caps may help. I have not had to do that.
boyd young
Boyd Y/Folks:
912UL and 912ULS come equipped with resistor spark plug caps and plugs.
john h
mkIII
Titus, Alabama
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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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jackinkeywest
Joined: 20 Mar 2012
Posts: 36
Location: Key West, FL
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| Posted: Thu May 17, 2012 10:07 am Post subject: Ignition noise suppression on Jabiru 2200 |
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Hi Frank,
You may already have the answer to your question since I am late in responding.... however, you might want to check out the AERO ELECTRONICS List on the Matronics website. Search 'ignition noise filter' and you will see hundreds if not thousands of responses to your query. Some very smart fellers on that list when it comes electronics. Pretty sure you will find you are not the first person to have the problem and you will find a cheap (and easy...) solution to fix it.
Just my advice. Worth what you paid for it.... nothing.
V/R,
Jack in Key West
Kolb M3C (N33040)
Rotax 582 and PJ Floats
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