X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 28 Oct 2013 12:35:54 -0400 Message-ID: X-Original-Return-Path: Received: from mail-ea0-f170.google.com ([209.85.215.170] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6567377 for lml@lancaironline.net; Mon, 28 Oct 2013 12:03:22 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.215.170; envelope-from=legacyl2k@gmail.com Received: by mail-ea0-f170.google.com with SMTP id q10so1856360eaj.15 for ; Mon, 28 Oct 2013 09:02:45 -0700 (PDT) X-Received: by 10.15.99.72 with SMTP id bk48mr23135242eeb.22.1382976164917; Mon, 28 Oct 2013 09:02:44 -0700 (PDT) X-Original-Return-Path: Received: from [10.11.0.214] ([195.124.114.34]) by mx.google.com with ESMTPSA id f49sm58837128eec.7.2013.10.28.09.02.43 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 28 Oct 2013 09:02:43 -0700 (PDT) Subject: Re: [LML] Re: Noisy COM on low end freqs only....? References: From: Mike Content-Type: multipart/alternative; boundary=Apple-Mail-7437BFBA-49FE-4356-A53E-E91BBBC39E84 X-Mailer: iPad Mail (9B206) In-Reply-To: X-Original-Message-Id: <1B472432-25AD-48B6-A278-C6A274FAF274@gmail.com> X-Original-Date: Mon, 28 Oct 2013 17:02:43 +0100 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-7437BFBA-49FE-4356-A53E-E91BBBC39E84 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Or Zulu 2's from LightSpeed... You can BlueTooth music as well as phone wit= h the Zulu's. You can only BlueTooth the phone to the A20's, plus the Zulu'= s sound much better.... I demoed the new Zulu PFX that are coming out soon, didn't think much of the= m for many reasons... Zulu 2's if you go this way, much nicer then the Bose= A20 Mike Larkin Sent from my iPad On Oct 28, 2013, at 4:32 PM, George Wehrung wrote: > I found yesterday that with my wife using the Pilot BluLink (blue tooth fo= r her iPhone to Bose X headset) that the ICS and comms sounded horrible. =20= >=20 > Once she turned it off, problems went away. Just a datapoint. Don=E2=80=99= t know if anyone else has had this as well. I may have to upgrade her to th= e A20. >=20 >=20 >=20 >=20 > On Oct 28, 2013, at 7:44 AM, Gordon Porter = wrote: >=20 >> Thanks, Pete. >> =20 >> This weekend I found that my headset jacks, that I moved to the panel at t= he last minute, were not insulated. I was hopeful I had found the issue. N= ot. Next is the audio jack in and other misc. items that contact the panel,= and running a dedicated ground line to my antenna ground plane. A local A&= P suggested that I ground the panel itself as well. Frustrating. >> =20 >> I was able to isolate the squelch noise to the "EFIS-trim:" circuit while= idling today. Not sure what that means, but will reach out to Aerotronics,= who did my panel, this week. >> =20 >> Will keep the group posted.. >> =20 >> Gordon >> =20 >> =20 >> =20 >> Gordon H. Porter >> Managing Partner >> Trusted Wealth Advisors, LLP >> Registered Principal, Cambridge Investment Research, Inc. >> =20 >> 800-290-2632 717-757-4908 fax 717-843-0180 >> =20 >> GHP@TrustedWealthAdvisors.com >> =20 >> Securities offered through Cambridge Investment Research, Inc.. Member FI= NRA/SIPC. Advisory Services offered through Cambridge Investment Research Ad= visors, Inc., a Registered Investment Advisor. Tax services are offered by T= rusted Wealth Advisors LLP. Trusted Wealth Advisors and the Cambridge Invest= ment Research companies are unaffiliated entities. >>=20 >> Trading instructions sent via e-mail may not be honored. Please call our= office, or Cambridge Investment Research trading desk at 800-756-8115 >> , for all buy/sell orders. Please be advised that communications regardi= ng trades in your account are for informational purposes only. You should c= ontinue to rely on confirmations and statements received from the custodian(= s) of your assets. The text of this communication is confidential, and use b= y any person who is not the intended recipient is prohibited. Any person wh= o receives this communication in error is requested to immediately destroy t= he text of this communication without copying or further dissemination. You= r cooperation is appreciated. >> =20 >> From: pete@leapfrogventures.com [mailto:pete@leapfrogventures.com]=20 >> Sent: Friday, October 25, 2013 8:54 PM >> To: lml@lancaironline.net; ghp@trustedwealthadvisors.com >> Subject: RE: [LML] Noisy COM on low end freqs only....? >> =20 >> I had similar problems with my ES comm. In my case I found two causes. T= he first was the aux audio input jack for my comm panel. It was mounted on t= he aluminum dash, which created a ground loop as the barrel of the connector= was then connected by both a wire and the panel. Disconnecting the jack el= iminated the hum. Note that the hum was there even when the aux jack was no= t enabled =E2=80=93 just its presence created a ground loop. >> =20 >> The second issue was noise emanating from my LED position lights. This n= oise only affected the lower comm frequencies, while the aux jack loop creat= ed a buzz all of the time. You can source these kinds of problems by openin= g the fuses one by one until the problem goes away.=20 >> =20 >> Pete >> =20 >> From: YahooMail [mailto:arrow54t@yahoo.com]=20 >> Sent: Thursday, October 24, 2013 6:06 AM >> To: lml@lancaironline.net >> Subject: Re: [LML] Noisy COM on low end freqs only....? >> =20 >> Gordon, >> I had very similar experience with my ES. I tried the alternator filter c= apacitor idea with no luck too. I could eliminate the noise by turning off t= he alternator field. Turned out to be a ground loop due to the aluminum hea= dphone mounting jack plates for the rear seat passengers. I installed plast= ic washers with a flange so that the jack bodies wouldn't touch the metal pl= ate. Aircraft Spruce sells them just for this purpose. Originally I had pl= astic washers that didn't have the flange that keeps the jacks in the center= of the hole. No more whining in my plane except from some passengers when t= here is turbulence! >> =20 >> Hope this helps, >> Mike Salzman >> 2005 LNCE >> Fairfield, CA >>=20 >> Sent from my iPad >>=20 >> On Oct 21, 2013, at 7:37, "Gordon Porter" = wrote: >>=20 >> Well, I have been flying my Lancair ES for 90 hours and loving it. Knoc= king off the last of the minor squawks. One that has me perplexed is a very= staticy COM background noise: >> =20 >> Get it on both radios - a G530 and an SL30, on different antennae >>=20 >>=20 >> SL 30 is on an exterior Comant 121; G530 is on a bonded in AAE in vertica= l >>=20 >>=20 >> My transmissions are heard fine >>=20 >>=20 >> I actually here incoming transmissions when it is staticy fairly well, m= ost of the time >>=20 >>=20 >> The WEIRD part is it is 100% reproducible on 118.xx, 119.xx and 120.xx fr= eqs only. Rest of freq spectrum is crystal clear with good range >> =20 >> I thought I had it narrowed down to the Primary ALT since at 8-900 RPM I c= ould switch the static off and on with the field switch. So, I put one of t= hose big capacitors (from B&C) on the PRIM ALT. No improvement at higher RP= Ms. Noise is the same with either alternator. >> =20 >> Any ideas? The lower freqs only has to be a clue, I just don't know what= it means!! >> =20 >> Thanks in advance for any ideas or direction. >> =20 >> Gordon >> Lancair ES N144GP >> IO-550 >> =20 >> =20 >> Gordon H. Porter >> Managing Partner >> Trusted Wealth Advisors, LLP >> Registered Principal, Cambridge Investment Research, Inc. >> =20 >> 800-290-2632 717-757-4908 fax 717-843-0180 >> =20 >> GHP@TrustedWealthAdvisors.com >> =20 >> Securities offered through Cambridge Investment Research, Inc.. Member FI= NRA/SIPC. Advisory Services offered through Cambridge Investment Research Ad= visors, Inc., a Registered Investment Advisor. Tax services are offered by T= rusted Wealth Advisors LLP. Trusted Wealth Advisors and the Cambridge Invest= ment Research companies are unaffiliated entities. >>=20 >> Trading instructions sent via e-mail may not be honored. Please call our= office, or Cambridge Investment Research trading desk at 800-756-8115 >> , for all buy/sell orders. Please be advised that communications regardi= ng trades in your account are for informational purposes only. You should c= ontinue to rely on confirmations and statements received from the custodian(= s) of your assets. The text of this communication is confidential, and use b= y any person who is not the intended recipient is prohibited. Any person wh= o receives this communication in error is requested to immediately destroy t= he text of this communication without copying or further dissemination. You= r cooperation is appreciated. >=20 --Apple-Mail-7437BFBA-49FE-4356-A53E-E91BBBC39E84 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Or Zulu 2's from LightSpee= d...  You can BlueTooth music as well as phone with the Zulu's.  Y= ou can only BlueTooth the phone to the A20's, plus the Zulu's sound much bet= ter....

I demoed the new Zulu PFX that are coming o= ut soon, didn't think much of them for many reasons...  Zulu 2's if you= go this way, much nicer then the Bose A20

Mike Lar= kin

Sent from my iPad

On Oct 28, 2013, at 4:32 PM, Geor= ge Wehrung <gw5@me.com> wrote:
I found yesterday that w= ith my wife using the Pilot BluLink (blue tooth for her iPhone to Bose X hea= dset) that the ICS and comms sounded horrible.  

Onc= e she turned it off, problems went away.  Just a datapoint.  Don=E2= =80=99t know if anyone else has had this as well.  I may have to upgrad= e her to the A20.



On Oct 28, 2013, at 7:44 AM, Gordon Porter <ghp@trustedwealthadvisors.com> wrote:<= /div>
Thanks, Pete.
 
This weekend I found that my headset j= acks, that I moved to the panel at the last minute, were not insulated. = ; I was hopeful I had found the issue.  Not.  Next is the audio ja= ck in and other misc. items that contact the panel, and running a dedicated g= round line to my antenna ground plane.  A local A&P suggested that I= ground the panel itself as well.  Frustrating.
=
 
=
I was able to isola= te the squelch noise to the "EFIS-trim:" circuit while idling today.  N= ot sure what that means, but will reach out to Aerotronics, who did my panel= , this week.
 
Will keep the group posted..
 
Gordon
 
 
 
Gordon H. Porter
Managing Partner
Trusted Wealth Advisors, LLP
Registered Principal, Cambridge Investment Research, Inc.
 
800-= 290-2632  717-757-4908  fax 717-843-0180 
GHP@TrustedWealthAdvisors.com
 

Securities offered through C= ambridge Investment Research, Inc.. Member FINRA/SIPC. Advisory Services off= ered through Cambridge Investment Research Advisors, Inc., a Registered Inve= stment Advisor. Tax services are offered by Trusted Wealth Advisors LLP. Tru= sted Wealth Advisors and the Cambridge Investment Research companies are una= ffiliated entities.

Trading instructions sent vi= a e-mail may not be honored.  Please call our office, or Cambridge Inve= stment Research trading desk at 800-756-8115
= , for all buy/sell orders.  Please be advised that communications regar= ding trades in your account are for informational purposes only.  You s= hould continue to rely on confirmations and statements received from the cus= todian(s) of your assets.  The text of this communication is confidenti= al, and use by any person who is not the intended recipient is prohibited.&n= bsp; Any person who receives this communication in error is requested to imm= ediately destroy the text of this communication without copying or further d= issemination.  Your cooperation is appreciated.
=
 <= /div>
From:=  pe= te@leapfrogventures.com [mailto:pete@leapfrogventures.com] 
Sent: Friday, October 25, 2013 8:54 PM
To: lml@lanca= ironline.net; ghp@trustedwealthadvisors.com
Subject: RE: [LML] Noisy COM on low end fr= eqs only....?
 =
I had s= imilar problems with my ES comm.  In my case I found two causes.  T= he first was the aux audio input jack for my comm panel.  It was mounte= d on the aluminum dash, which created a ground loop as the barrel of the con= nector was then connected by both a wire and the panel.  Disconnecting t= he jack eliminated the hum.  Note that the hum was there even when the a= ux jack was not enabled =E2=80=93 just its presence created a ground loop.
 
The second issue was noise emanating from my LED position lights.  T= his noise only affected the lower comm frequencies, while the aux jack loop c= reated a buzz all of the time.  You can source these kinds of problems b= y opening the fuses one by one until the problem goes away. =
 =
P= ete
 
From: YahooMail [mailto:arrow54t@yahoo.com] 
Sent: Thursday, October 24, 2013 6:06 AM
To:<= span class=3D"Apple-converted-space"> lml@lanc= aironline.net
Subject:&n= bsp;Re: [LML] Noisy COM on low end freqs only....?<= /div>
 
Gordon,
I had very similar experi= ence with my ES.  I tried the alternator filter capacitor idea with no l= uck too.  I could eliminate the noise by turning off the alternator fie= ld.  Turned out to be a ground loop due to the aluminum headphone mount= ing jack plates for the rear seat passengers.  I installed plastic wash= ers with a flange so that the jack bodies wouldn't touch the metal plate. &n= bsp;Aircraft Spruce sells them just for this purpose.  Originally I had= plastic washers that didn't have the flange that keeps the jacks in the cen= ter of the hole.  No more whining in my plane except from some passenge= rs when there is turbulence!
 
Hope this helps,
Mike Salzman
2005 LNCE
Fairfield, CA=

Sent from my iPad


On Oct 21, 2013, at 7:37, "Gordon Porter" <ghp@trustedwealthadvisors.com> wrote:

Well, I have been flying my Lancair  = ;ES for 90 hours and loving it.  Knocking off the last of the minor squ= awks.  One that has me perplexed is a very staticy COM background noise= :
 

Get it on both radios - a G530 and an SL30, o= n different antennae

SL 30 is on an exterior Comant= 121; G530 is on a bonded in AAE in vertical

My tra= nsmissions are heard fine

I actually here incoming t= ransmissions  when it is staticy fairly well, most of the time

<= /span>

The WEIRD part is it is 100% reproducible on 118.xx, 119.xx and 120.xx fr= eqs only.  Rest of freq spectrum is crystal clear with good range
=  
I thought I had it narrowed down to the Primary ALT since at 8-9= 00 RPM I could switch the static off and on with the field switch.  So,= I put one of those big capacitors (from B&C) on the PRIM ALT.  No i= mprovement at higher RPMs.  Noise is the same with either alternator.
 
Any ideas?  The&nb= sp;lower freqs only has to be a clue, I just don't know what i= t means!!
 
Thanks in advance for any ideas or direction.
 
Gordon
Lancair ES N144GP
IO-550
 
 
Gordon H. Porter
Managing Partner
Trusted Wealth Advisors, LLP
Registered Principal, Cam= bridge Investment Research, Inc.
 
800-290-2632  717-757-4908  fax 717-843-0180
 
&nb= sp;

Securities offered through Cambridge Investment R= esearch, Inc.. Member FINRA/SIPC. Advisory Services offered through Cambridg= e Investment Research Advisors, Inc., a Registered Investment Advisor. Tax s= ervices are offered by Trusted Wealth Advisors LLP. Trusted Wealth Advisors a= nd the Cambridge Investment Research companies are unaffiliated entities.

Trading instructions sent via e-mail may not be honored.  P= lease call our office, or Cambridge Investment Research trading desk at 800-= 756-8115
, for all buy/sell orders.  Please be advise= d that communications regarding trades in your account are for informational= purposes only.  You should continue to rely on confirmations and state= ments received from the custodian(s) of your assets.  The text of this c= ommunication is confidential, and use by any person who is not the intended r= ecipient is prohibited.  Any person who receives this communication in e= rror is requested to immediately destroy the text of this communication with= out copying or further dissemination.  Your cooperation is appreciated.=

= --Apple-Mail-7437BFBA-49FE-4356-A53E-E91BBBC39E84--