[LNC2] Cabin Noise

Submitted by Anonymous on

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From: John Cooper <snopercod [at] comporium.net>
Sender: <marv [at] lancaironline.net>
Subject: [LNC2] Cabin Noise
Date: Mon, 29 Sep 2014 07:18:50 -0400
To: <lml [at] lancaironline.net>

The cabin noise in my 235 is so loud that I can hardly hear ATC in my David Clark headphones. I'm using an ICOM IC-A210 radio which seems to pick up the cabin noise and amplify it. At the moment my cockpit has no sound insulation or upholstery which is part of the problem. Do any LNC2 drivers out there have any words of wisdom for me?



Thanks in advance--



--John, Lancair 235 N10CF, 1 hour

[LNC2] Cabin Noise

Submitted by Anonymous on

From: Bill Harrelson <n5zq [at] verizon.net>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] [LNC2] Cabin Noise
Date: Mon, 29 Sep 2014 10:49:48 -0400
To: <lml [at] lancaironline.net>
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Undecoded Message

John,



Without a doubt, the cheapest, quickest and easiest solution is a pair of good noise cancelling headsets.  Sealing air leaks, sound insulation and upholstery will, of course, help but the biggest single factor will be the headsets. I just got a pair of the new AKG headsets. They're my favorite among the Siennheiser,  Bose, Lightspeed class of headsets.



Bill Harrelson

N6ZQ  IV 600 hrs







Subject: [LML] [LNC2] Cabin Noise



The cabin noise in my 235 is so loud that I can hardly hear ATC in my

David Clark headphones. I'm using an ICOM IC-A210 radio which seems to

pick up the cabin noise and amplify it. At the moment my cockpit has no

sound insulation or upholstery which is part of the problem. Do any LNC2

drivers out there have any words of wisdom for me?



Thanks in advance--



--John, Lancair 235 N10CF, 1 hour

[LNC2] Cabin Noise

Submitted by Anonymous on

From: Silvio Novelli <ppxsn [at] novellisouza.com.br>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] [LNC2] Cabin Noise
Date: Mon, 29 Sep 2014 18:14:13 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message

Totally agreed. I can talk easily and ATC is clear as crystal just using a pair of  noise canceling Zulus.




      Silvio Novelli
 Lancair 320 PP-XSN
+55 (14) 9.9614-3129


On Sep 29, 2014, at 11:49 AM, Bill Harrelson wrote:


John,

Without a doubt, the cheapest, quickest and easiest solution is a pair of good noise cancelling headsets.  Sealing air leaks, sound insulation and upholstery will, of course, help but the biggest single factor will be the headsets. I just got a pair of the new AKG headsets. They're my favorite among the Siennheiser,  Bose, Lightspeed class of headsets.

Bill Harrelson
N6ZQ  IV 600 hrs



Subject: [LML] [LNC2] Cabin Noise

The cabin noise in my 235 is so loud that I can hardly hear ATC in my
David Clark headphones. I'm using an ICOM IC-A210 radio which seems to
pick up the cabin noise and amplify it. At the moment my cockpit has no
sound insulation or upholstery which is part of the problem. Do any LNC2
drivers out there have any words of wisdom for me?

Thanks in advance--

--John, Lancair 235 N10CF, 1 hour



--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html

[LNC2] Cabin Noise

Submitted by Anonymous on

From: John Cooper <snopercod [at] comporium.net>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] [LNC2] Cabin Noise
Date: Tue, 07 Oct 2014 08:53:37 -0400
To: <lml [at] lancaironline.net>
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Undecoded Message

Bill and Silvio--



Thanks for the advice. Today I'm borrowing a Lightspeed Zulu headset and will fly around the pattern and talk to tower wearing those.



I called ICOM and tech support advised setting the MIC1 SQL as high as possible and the MIC1 GAIN as low as possible. The INCOM LV1 is set for comfortable intercom volume. Those three settings affect ONLY the Intercom audio not the transmit/receive. (If I were using a passenger headphone, the same settings would apply to #2.) I didn't ask, but I believe the ANL setting [ON/OFF] only affects audio from the receiver, not the intercom. I turned ANL on.



Additional things I learned about the IC-A210: The SIDETONE LV is only effective when transmitting; The HP LEVEL (headphone volume) needs to be set to "AF gain" so the volume knob on the front panel controls the headphone volume as well as the external speaker volume. To get the display as bright as possible, I had to set the DISP MODE to MANUAL and the DISP MAN to 100. In the AUTO mode, the display was barely readable.



I really like the features on the IC-A210 and hope I can eventually get it set up correctly.

[LNC2] Cabin Noise

Submitted by Anonymous on

From: John Cooper <snopercod [at] comporium.net>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] [LNC2] Cabin Noise
Date: Tue, 07 Oct 2014 08:55:07 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message

I borrowed a set of Lightspeed Zulus and made a test flight today in my L-235. The noise level was much lower, but the readability was still unacceptable. I had to say "say again" twice to the tower because I couldn't understand what the controller was asking me to do.



That being the case, I intend to forget about the Garmin Virb recording my comments and disable the Intercom function on the ICOM IC-A210 radio. In the future, the Virb will only record the conversations between me and ATC. Safety of flight is more important that the engineering data I am dictating into the camera.



The guy who loaned me the headset told me that he flies his C-172 with foam earplugs in his ears as well as the Zulus. Does anybody else do that?



Thanks to all those who contacted me privately--



  --John