Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Mon, 31 Jan 2005 10:03:44 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d03.mx.aol.com ([205.188.157.35] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 652133 for lml@lancaironline.net; Mon, 31 Jan 2005 08:30:30 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.35; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d03.mx.aol.com (mail_out_v37_r3.8.) id q.147.3e6680c4 (17377) for ; Mon, 31 Jan 2005 08:29:55 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <147.3e6680c4.2f2f8cd2@aol.com> X-Original-Date: Mon, 31 Jan 2005 08:29:54 EST Subject: static wicks Noise on Xmit Only. X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1107178194" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1107178194 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 1/30/2005 8:52:15 P.M. Central Standard Time, marv@lancaironline.net writes: This sounds complicated... Should they be necessary on the 320 and especially if one is getting comm noise during xmit only when airborne? Gerard, Maybe I didn't read your first message closely enough. I don't think static wicks are a solution to your specific problem. Most people would complain of static during the reception of radio communications. Since you say you have problems only during transmit in flight, consider the following: 1. Does the person receiving the communications report that they are hearing static? If so, check for solid connections from mike to radio to power to antenna. Remember that during xmit, the radio is making the greatest power draw and things such as a bad ground may show up more during this operation - especially in a high vibration environment. 2. If you are the only one to hear the static, note that you are not hearing the actual transmission but the side tone generated by the radio reflecting back to your headset what you are saying into the mike. If this is the case, you should check connections from the mike to radio to audio panel and back to headset. Turn off the intercom and see if the static continues. Audio circuits are very susceptible to "interference." I am not the one to talk to about static wicks on fiberglass insulators. I do not believe they would have much affect unless they are electrically bonded to everything that can be a source of discharge. If p-static is a problem, you should consider the finish on the skin of the airplane. I flew my 320 for a year in primer and noted that it was very conducive to the formation of skin static - so much so that the initial LORAN unit failed soon after takeoff. On the ground when I would drag my hand across the cowl the hair on my arm would stand up. This problem went away with a switch to GPS and a nice paint job. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Fair and Balanced Opinions at No Charge! There is an oxymoron in that, somewhere... -------------------------------1107178194 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 1/30/2005 8:52:15 P.M. Central Standard Time,=20 marv@lancaironline.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>This=20 sounds complicated...

Should they be necessary on the= 320=20 and especially if one is getting comm
noise during xmit only when=20 airborne?

Gerard,

Maybe I didn't read your first message closely enough. I don't th= ink=20 static wicks are a solution to your specific problem. Most people woul= d=20 complain of static during the reception of radio communications.

Since you say you have problems only during transmit in flight, conside= r=20 the following:

1. Does the person receiving the communications report that they are=20 hearing static? If so, check for solid connections from mike to radio=20= to=20 power to antenna. Remember that during xmit, the radio is making the=20 greatest power draw and things such as a bad ground may show up more during=20= this=20 operation - especially in a high vibration environment.

2. If you are the only one to hear the static, note that you are not=20 hearing the actual transmission but the side tone generated by the radi= o=20 reflecting back to your headset what you are saying into the mike. If this i= s=20 the case, you should check connections from the mike to radio to audio panel= and=20 back to headset. Turn off the intercom and see if the static=20 continues. Audio circuits are very susceptible to "interference."

I am not the one to talk to about static wicks on fiberglass=20 insulators. I do not believe they would have much affect unless they a= re=20 electrically bonded to everything that can be a source of discharge. =20

If p-static is a problem, you should consider the finish on the skin of= the=20 airplane. I flew my 320 for a year in primer and noted that it was ver= y=20 conducive to the formation of skin static - so much so that the initial LORA= N=20 unit failed soon after takeoff. On the ground when I would drag my han= d=20 across the cowl the hair on my arm would stand up. This problem went a= way=20 with a switch to GPS and a nice paint job.=20

Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Fai= r=20 and Balanced Opinions at No Charge!
There is an oxymoron in that,=20 somewhere...

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