X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 14 Jul 2005 09:51:21 -0400 Message-ID: X-Original-Return-Path: Received: from webmail-outgoing.us4.outblaze.com ([205.158.62.67] verified) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 1055921 for lml@lancaironline.net; Thu, 14 Jul 2005 02:20:13 -0400 Received-SPF: none receiver=logan.com; client-ip=205.158.62.67; envelope-from=cfi@instructor.net Received: from unknown (unknown [192.168.9.180]) by webmail-outgoing.us4.outblaze.com (Postfix) with QMQP id 436CD1800128 for ; Thu, 14 Jul 2005 06:19:27 +0000 (GMT) X-OB-Received: from unknown (205.158.62.55) by wfilter.us4.outblaze.com; 14 Jul 2005 06:19:27 -0000 Received: by ws1-3.us4.outblaze.com (Postfix, from userid 1001) id 37F9D101D9; Thu, 14 Jul 2005 06:19:27 +0000 (GMT) Content-Transfer-Encoding: 7bit Content-Type: multipart/alternative; boundary="_----------=_1121321967195723" MIME-Version: 1.0 X-Original-Date: Wed, 13 Jul 2005 23:19:27 -0700 Received: from [162.58.35.200] by ws1-3.us4.outblaze.com with http for cfi@instructor.net; Wed, 13 Jul 2005 23:19:27 -0700 From: "Ron Galbraith" X-Original-To: "Lancair Mailing List" Subject: Re: [LML] Re: Mode C X-Originating-Ip: 162.58.35.200 X-Originating-Server: ws1-3.us4.outblaze.com X-Original-Message-Id: <20050714061927.37F9D101D9@ws1-3.us4.outblaze.com> This is a multi-part message in MIME format. --_----------=_1121321967195723 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Steve, The problem with the encoder might be as simple as a pushed back pin in a connector. In most basic transponder systems, when you turn the knob to mode C, this sends a ground to the encoder to enable the mode C output of the encoder. Which transponder and encoder do you have? There are 2 different ways in which the encoder will communicate with the transponder. In newer systems, the encoder has a serial output, but in most systems it is analog. If you have an IFR GPS installed, it must be connected to the mode C system too, either a separate encoder or just tied in to the transponder encoder. If you do have this system, is the mode C getting to the GPS? (there is a menu to check this). If it is, then the problem is probably in the wiring. It is still possible that the problem is the transponder. Maybe the mode C switch is bad. It's very common for the connections on the back of the transponder rack to be intermittant especially if the pins were installed by a builder who wasn't using the correct crimpers.=20 Ron Galbraith LNCE-N5ES > Well, actually it's not intermittent. It doesn't work at all. I bought a > new encoder (same model..King) and plugged up my existing wiring harness and > still nada. So I guess I need to check the wiring? > > Steve > > > Since the problem is > > intermittant, then the best guess problem is the encoder itself. > > -- > For archives and unsub http://mail.lancaironline.net/lists/lml/ --=20 ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm --_----------=_1121321967195723 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="iso-8859-1"

Steve,

    The problem with the encoder might be as simple as a = pushed back pin in a connector.    In most basic transponder= systems, when you turn the knob to mode C, this sends a ground to the enco= der to enable the mode C output of the encoder.  Which transponder and= encoder do you have?   There are 2 different ways in which the e= ncoder will communicate with the transponder.  In newer systems, the e= ncoder has a serial output, but in most systems it is analog.   I= f you have an IFR GPS installed, it must be connected to the mode C system = too, either a separate encoder or just tied in to the transponder encoder.&= nbsp;  If you do have this system, is the mode C getting to the GPS? (= there is a menu to check this).  If it is, then the problem is probabl= y in the wiring.  It is still possible that the problem is the transpo= nder.  Maybe the mode C switch is bad.   It's very common fo= r the connections on the back of the transponder rack to be intermittant es= pecially if the pins were installed by a builder who wasn't using the corre= ct crimpers. 

Ron Galbraith

LNCE-N5ES

 

 


> Well, actually it's not intermittent. It doesn't work at all. I= bought a
> new encoder (same model..King) and plugged up my existin= g wiring harness and
> still nada. So I guess I need to check the wi= ring?
>
> Steve
>
> > Since the problem is <= BR>> > intermittant, then the best guess problem is the encoder itsel= f.
>
> --
> For archives and unsub http://mail.lancair= online.net/lists/lml/


--=20

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