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GeoB
Joined: 16 Jun 2009 Posts: 207 Location: Fresno, CA
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Posted: Wed Oct 12, 2011 12:10 am Post subject: Kolb-List Digest: 15 Msgs - 10/11/11 |
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Quote: | I get bad interference with the radio from my Jabiru. Obviously need a
suppressor.
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Ummm... maybe a suppressor would be the best choice. But maybe not. I have
been into 4x4s. We use radios a lot. And stereos. I have read several VERY
interesting write-ups on successful noise suppression. 4x4 Yahoo groups
might supply some good ideas for you. The basic lesson I learned is that
noise suppression CAN be a a whole mess of things that need attended to. And
maybe not, in your case. I can't recite for you the list of things people
do, but I can give you just a taste...
- try to eliminate noise at the source, not just at the receiving end.
- use the right sort of quality ignition wires, make sure they are installed
properly and are supported properly.
- make sure you understand what you are doing if you install shielding on
your secondary ignition wires. They can work or not work.
- Use by-pass capacitors liberally on power supply lines.
- Ground metal parts, metal sheets, wires, frame sections, etc
- Ground any metal doors. We want to make sure we are not re-radiating a
noise signal.
- be careful of un-terminated or dangling wires that can transmit noise.
- pay special attention to ignition parts; cases and shielding need to be
tight and secure and grounded.
- use by-pass capacitors AT LEAST on the generator. There are other more
complex and expensive noise-elimination items that may be needed here too.
- power supply lines may need a conditioner (your suppressor?). IIRC this
will probably contain capacitance AND reluctance.
At this time of night I can't remember any more off hand.
Please don't believe half of what I wrote- I am trying to recall the flavor
of the suggestions. Personally I would research the issue more closely.
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_________________ GeoB
"Members of Congress should be compelled to wear uniforms like NASCAR drivers, so we could identify their corporate sponsors" |
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pj.ladd(at)btinternet.com Guest
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Posted: Wed Oct 12, 2011 12:40 am Post subject: Kolb-List Digest: 15 Msgs - 10/11/11 |
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Thanks George,
that will do to be going on with.
My guru said about the same `you just keep suppressing things until the
noise stops`
Pat
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