X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 28 Oct 2013 13:58:45 -0400 Message-ID: X-Original-Return-Path: Received: from nk11p08mm-asmtp001.mac.com ([17.158.58.246] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6567486 for lml@lancaironline.net; Mon, 28 Oct 2013 12:40:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=17.158.58.246; envelope-from=gw5@me.com Received: from [10.0.1.68] (cpe-071-077-249-052.ec.res.rr.com [71.77.249.52]) by nk11p08mm-asmtp001.mac.com (Oracle Communications Messaging Server 7u4-27.08(7.0.4.27.7) 64bit (built Aug 22 2013)) with ESMTPSA id <0MVE00GIR0Y88F70@nk11p08mm-asmtp001.mac.com> for lml@lancaironline.net; Mon, 28 Oct 2013 16:39:46 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.10.8794,1.0.431,0.0.0000 definitions=2013-10-28_01:2013-10-28,2013-10-28,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=2 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1308280000 definitions=main-1310280121 From: George Wehrung Content-type: multipart/alternative; boundary="Apple-Mail=_BE94A68D-5682-4200-9E21-38AB6EA85C82" X-Original-Message-id: <0A3EE1F4-3E3B-47E3-8377-DDB4CE69C29D@me.com> MIME-version: 1.0 (Mac OS X Mail 7.0 \(1816\)) Subject: Re: [LML] Re: Noisy COM on low end freqs only....? X-Original-Date: Mon, 28 Oct 2013 12:39:55 -0400 References: X-Original-To: Lancair Mailing List In-reply-to: X-Mailer: Apple Mail (2.1816) --Apple-Mail=_BE94A68D-5682-4200-9E21-38AB6EA85C82 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 I don=92t like the fit of the zulu compared to bose for my pointy head. = I wear them some days for seven hours at a stretch for 6 days a week = deployed three months at a time.=20 =20 On Oct 28, 2013, at 12:35 PM, Mike wrote: > Or Zulu 2's from LightSpeed... You can BlueTooth music as well as = phone with the Zulu's. You can only BlueTooth the phone to the A20's, = plus the Zulu's sound much better.... >=20 > I demoed the new Zulu PFX that are coming out soon, didn't think much = of them for many reasons... Zulu 2's if you go this way, much nicer = then the Bose A20 >=20 > Mike Larkin >=20 > Sent from my iPad >=20 > On Oct 28, 2013, at 4:32 PM, George Wehrung wrote: >=20 >> I found yesterday that with my wife using the Pilot BluLink (blue = tooth for 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=92t= know if anyone else has had this as well. I may have to upgrade her to = the 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 the last minute, were not insulated. I was hopeful I had found = the issue. Not. 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 FINRA/SIPC. Advisory Services offered through Cambridge = Investment Research Advisors, Inc., a Registered Investment Advisor. Tax = services are offered by Trusted Wealth Advisors LLP. Trusted Wealth = Advisors and the Cambridge Investment 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 = regarding trades in your account are for informational purposes only. = You should continue to rely on confirmations and statements received = from the custodian(s) of your assets. The text of this communication is = confidential, and use by any person who is not the intended recipient is = prohibited. Any person who receives this communication in error is = requested to immediately destroy the text of this communication without = copying or further dissemination. Your 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. The first was the aux audio input jack for my comm panel. It = was mounted on the 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 eliminated the hum. Note that the hum was there = even when the aux jack was not enabled =96 just its presence created a = ground loop. >>> =20 >>> The second issue was noise emanating from my LED position lights. = This noise only affected the lower comm frequencies, while the aux jack = loop created a buzz all of the time. You can source these kinds of = problems by opening 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 capacitor idea with no luck too. I could eliminate the noise by = turning off the alternator field. Turned out to be a ground loop due to = the aluminum headphone mounting jack plates for the rear seat = passengers. I installed plastic washers with a flange so that the jack = bodies wouldn't touch the metal plate. 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 center of the hole. No more whining = in my plane except from some passengers when there 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. = Knocking 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 = vertical >>>=20 >>>=20 >>> My transmissions are heard fine >>>=20 >>>=20 >>> I actually here incoming transmissions when it is staticy fairly = well, most of the time >>>=20 >>>=20 >>> The WEIRD part is it is 100% reproducible on 118.xx, 119.xx and = 120.xx freqs 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 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 = improvement at higher RPMs. 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 FINRA/SIPC. Advisory Services offered through Cambridge = Investment Research Advisors, Inc., a Registered Investment Advisor. Tax = services are offered by Trusted Wealth Advisors LLP. Trusted Wealth = Advisors and the Cambridge Investment 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 = regarding trades in your account are for informational purposes only. = You should continue to rely on confirmations and statements received = from the custodian(s) of your assets. The text of this communication is = confidential, and use by any person who is not the intended recipient is = prohibited. Any person who receives this communication in error is = requested to immediately destroy the text of this communication without = copying or further dissemination. Your cooperation is appreciated. >>=20 --Apple-Mail=_BE94A68D-5682-4200-9E21-38AB6EA85C82 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 I = don=92t like the fit of the zulu compared to bose for my pointy head. =  I wear them some days for seven hours at a stretch for 6 days a = week deployed three months at a = time. 



  =    
On Oct 28, 2013, at 12:35 PM, Mike <legacyl2k@gmail.com> = wrote:

Or Zulu 2's from = LightSpeed...  You can BlueTooth music as well as phone with 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 them 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 <gw5@me.com> = wrote:

I= found yesterday that with my wife using the Pilot BluLink (blue tooth = for her iPhone to Bose X headset) that the ICS and comms sounded = horrible.  

Once she turned it off, problems = went away.  Just a datapoint.  Don=92t know if anyone else has = had this as well.  I may have to upgrade her to the = A20.




= On Oct 28, 2013, at 7:44 AM, Gordon Porter <ghp@trustedwealthadvisors.co= m> wrote:

Thanks, Pete.
 
This weekend I found that my headset jacks, 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 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.
 
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.
 
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
 
 

Securities offered through Cambridge = Investment Research, Inc.. Member FINRA/SIPC. Advisory Services offered = through Cambridge Investment Research Advisors, Inc., a Registered = Investment Advisor. Tax services are offered by Trusted Wealth Advisors = LLP. Trusted Wealth Advisors and the Cambridge Investment Research = companies are unaffiliated entities.

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 regarding trades in your account = are for informational purposes only.  You should continue to rely = on confirmations and statements received from the custodian(s) of your = assets.  The text of this communication is confidential, and use by = any person who is not the intended recipient is prohibited.  Any = person who receives this communication in error is requested to = immediately destroy the text of this communication without copying or = further dissemination.  Your cooperation is = appreciated.
 
From: pete@leapfrogventures.com [mailto:pete@leapfrogventures.com] 
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....?
 
I had similar problems with my ES = comm.  In my case I found two causes.  The first was the aux = audio input jack for my comm panel.  It was mounted on the 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 eliminated the hum.  Note that the hum was there even when the = aux jack was not enabled =96 just its presence created a ground = loop.
 
The second issue was noise emanating = from my LED position lights.  This noise only affected the lower = comm frequencies, while the aux jack loop created a buzz all of the = time.  You can source these kinds of problems by opening the fuses = one by one until the problem goes = away. 
 
Pete
 
From: YahooMail [mailto:arrow54t@yahoo.com] 
Sent: Thursday, October 24, 2013 = 6:06 AM
To: lml@lancaironline.net
Subject: Re: [LML] Noisy COM on low = end freqs only....?
 
Gordon,
I = had very similar experience with my ES.  I tried the alternator = filter capacitor idea with no luck too.  I could eliminate the = noise by turning off the alternator field.  Turned out to be a = ground loop due to the aluminum headphone mounting jack plates for the = rear seat passengers.  I installed plastic washers with a flange so = that the jack bodies wouldn't touch the metal plate.  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 center = of the hole.  No more whining in my plane except from some = passengers 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 squawks.  One = that has me perplexed is a very staticy COM background = noise:
 

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

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

My transmissions = are heard fine

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

The WEIRD part is it is 100% = reproducible on 118.xx, 119.xx and 120.xx freqs only.  Rest of freq = spectrum is crystal clear with good range
 
I thought I had it narrowed = down to the Primary ALT since at 8-900 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 improvement at = higher RPMs.  Noise is the same with either = alternator.
 
Any ideas?  The lower freqs only has to = be a clue, I just don't know what it = 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, Cambridge Investment Research, = Inc.
 
800-290-2632  = 717-757-4908  fax 717-843-0180
 
 

Securities offered through Cambridge Investment Research, = Inc.. Member FINRA/SIPC. Advisory Services offered through Cambridge = Investment Research Advisors, Inc., a Registered Investment Advisor. Tax = services are offered by Trusted Wealth Advisors LLP. Trusted Wealth = Advisors and the Cambridge Investment Research companies are = unaffiliated entities.

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 regarding trades in = your account are for informational purposes only.  You should = continue to rely on confirmations and statements received from the = custodian(s) of your assets.  The text of this communication is = confidential, and use by any person who is not the intended recipient is = prohibited.  Any person who receives this communication in error is = requested to immediately destroy the text of this communication without = copying or further dissemination.  Your cooperation is = appreciated.

<= /div>

= --Apple-Mail=_BE94A68D-5682-4200-9E21-38AB6EA85C82--