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wdaniell.longport(at)gmai
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 Posted: Sat May 08, 2021 11:03 am Post subject: Headset howl |
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A quite serious case of headset howl has suddenly afflicted N460.
The symptoms only occur after about 15-30 mins of flight and only with the engine on.
Could this be related to my failing Voltage Regulator?
thanks
Will
William Daniell
LONGPORT
+1 786 878 0246
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budyerly@msn.com
Joined: 05 Oct 2019
Posts: 288
Location: Florida USA
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| Posted: Mon May 10, 2021 5:59 pm Post subject: Re: Headset howl |
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Will,
Yes it can.
Simply turn off your alternator switch if connected to the C and see if the noise stops.
If you are wired differently where the regulator is powered continuously and only the bus is disconnected by the alternator switch, pull the C out of the regulator or just unplug the whole regulator and check.
If the noise stops. You are out $170 bucks for a new one.
Bud
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mau05160(at)gmail.com
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| Posted: Tue May 11, 2021 9:23 am Post subject: Headset howl |
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Hello Bud, I have problems with my original Ducati regulator, in 2013 I replaced it with the Silent hektik Regulator. It fulfilled its function and after 5 years, alarms flash on my Dynon D100 + D120.
After checking, it appears that the Silent hektik regulator is out of order? ... After various searches, I found the MOSFET regulator FH020AA. I installed it on my 912S the alarms went off and all is well.I am attaching the document for this regulator to you.
Michel AUVRAY
Europa 098, 145, CTSW
Le mar. 11 mai 2021 à  04:02, budyerly(at)msn.com (budyerly(at)msn.com) <budyerly(at)msn.com (budyerly(at)msn.com)> a écrit :
| Quote: | --> Europa-List message posted by: "budyerly(at)msn.com (budyerly(at)msn.com)" <budyerly(at)msn.com (budyerly(at)msn.com)>
Will,
Yes it can.
Simply turn off your alternator switch if connected to the C and see if the noise stops.
If you are wired differently where the regulator is powered continuously and only the bus is disconnected by the alternator switch, pull the C out of the regulator or just unplug the whole regulator and check.
If the noise stops. You are out $170 bucks for a new one.
Bud
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=501851#501851
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Sindengen_FH020AA.pdf |
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125.15 KB |
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wdaniell.longport(at)gmai
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| Posted: Tue May 11, 2021 11:49 am Post subject: Headset howl |
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Thanks bud
I will also try that if it comes back.  I will unplug the whole thing as my alt switch is down stream of the vr.
So having done a bit of interweb research lightspeed suggested turning down the headset volume on the headset volume control if it has one (as opposed the the control on the radio) and turning down the mic gain.  This appears to have cured the problem.
How permanent this will remains to be seen.
Will
William Daniell
+1 786 878 0246
On Mon, May 10, 2021, 21:02 budyerly(at)msn.com (budyerly(at)msn.com) <budyerly(at)msn.com (budyerly(at)msn.com)> wrote:
| Quote: | --> Europa-List message posted by: "budyerly(at)msn.com (budyerly(at)msn.com)" <budyerly(at)msn.com (budyerly(at)msn.com)>
Will,
Yes it can.
Simply turn off your alternator switch if connected to the C and see if the noise stops.
If you are wired differently where the regulator is powered continuously and only the bus is disconnected by the alternator switch, pull the C out of the regulator or just unplug the whole regulator and check.
If the noise stops. You are out $170 bucks for a new one.
Bud
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=501851#501851
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pa-List" rel="noreferrer noreferrer" target="_blank">http://www.matronics.com/Navigator?Europa-List
===========
FORUMS -
eferrer noreferrer" target="_blank">http://forums.matronics.com
===========
WIKI -
errer noreferrer" target="_blank">http://wiki.matronics.com
===========
b Site -
     -Matt Dralle, List Admin.
rel="noreferrer noreferrer" target="_blank">http://www.matronics.com/contribution
===========
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budyerly@msn.com
Joined: 05 Oct 2019
Posts: 288
Location: Florida USA
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| Posted: Tue May 11, 2021 4:34 pm Post subject: Re: Headset howl |
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Michel,
Thank you for that. It looks very similar to the Multistrada 1200 series. I'm not a semiconductor guy and prefer plug and play, but Shindengen is held in high regard for their products and I'm sure it is a good piece of equipment. I've looked at the Multistrada Type but I believe I will go to the B&C, although my Ducati spare is working well (right now). In the US it is easier to get service questions answered SOMETIMES with B&C as they back their equipment and understand their limitations.
I heard that there is a Chinese knock off on many regulators that are very price appealing but I tend to shy from them. No offense to the Chinese manufacturers, but producing an electronic component for 20% of the cost of a European, Japanese, US equivalent makes me wonder.
For those of you in the UK and other areas where modifications must be approved, use caution. I find it interesting that you can change regulators but not add a screw to your throttle for a stop without permission. So please consider this post as information and discussion and not acceptable for action without thorough research, appropriate permissions and guidance from certified sources commensurate with your countries policies and procedures.
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budyerly@msn.com
Joined: 05 Oct 2019
Posts: 288
Location: Florida USA
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| Posted: Tue May 11, 2021 4:49 pm Post subject: Headset howl |
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Will,
I must confess that I nearly threw away my headsets because of poor understanding of my own intercoms squelch/volume and headset volume relationship. The volume knob on my headset was rolled up during storage in its pouch and I didn’t notice. I lowered the volume on my Sigtronics but feedback and excessive noise was still present. I have no idea how I missed this simple headset volume verses intercom volume relationship during an hour flight but I was hopping mad and ready to yank my panel when I simply lowered the volume on the headset, readjusted the intercom volume and all was well. Duh. I really should put a paint dab on my headset knob to prevent recurrence as I am getting more forgetful every day.
Best Regards,
Bud Yerly
From: owner-europa-list-server(at)matronics.com <owner-europa-list-server(at)matronics.com> On Behalf Of William Daniell
Sent: Tuesday, May 11, 2021 3:49 PM
To: europa-list(at)matronics.com
Subject: Re: Re: Headset howl
Thanks bud
I will also try that if it comes back. I will unplug the whole thing as my alt switch is down stream of the vr.
So having done a bit of interweb research lightspeed suggested turning down the headset volume on the headset volume control if it has one (as opposed the the control on the radio) and turning down the mic gain. This appears to have cured the problem.
How permanent this will remains to be seen.
Will
William Daniell
+1 786 878 0246
On Mon, May 10, 2021, 21:02 budyerly(at)msn.com (budyerly(at)msn.com) <budyerly(at)msn.com (budyerly(at)msn.com)> wrote:
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