Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mi03.r1000.mx.aol.com (Internet Inbound) with ESMTP id CADEF3800028C; Tue, 6 Nov 2012 11:46:20 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TVmHF-0000I6-Ii for rs_out_1@blacksheep.org; Tue, 06 Nov 2012 16:45:25 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TVmHF-0000Hx-5n for rsgb_lf_group@blacksheep.org; Tue, 06 Nov 2012 16:45:25 +0000 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1TVmHC-0002PX-Vp for rsgb_lf_group@blacksheep.org; Tue, 06 Nov 2012 16:45:24 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Al4KAHg9mVBOk85+/2dsb2JhbABErBwDlgwDgQCBCYIVBBQBAQNJAhwQAggCAQYBHTkBBBoGJB0BAgIBAYd9mmORD5BTjB5uF4U1A4glhU+YS4Jv X-IronPort-AV: E=Sophos;i="4.80,722,1344207600"; d="scan'208,217";a="390097864" Received: from host-78-147-206-126.as13285.net (HELO xphd97xgq27nyf) ([78.147.206.126]) by out1.ip04ir2.opaltelecom.net with SMTP; 06 Nov 2012 16:45:20 +0000 Message-ID: <002901cdbc3e$193684d0$0501a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Date: Tue, 6 Nov 2012 16:45:15 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 3.8 (+++) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: RIG/TRANSVERTER HEAT I have noticed when running a Transceiver at low power for Transverter or other use the Transceiver PA gets very HOT so it would appear that this is an inefficient approach except the Transceiver has a dedicated low power output. I was wondering what system was used to reduce this power. It would be better to disable the PA and take the output from the driver stage. It is vy noticeable on an IC-706 [...] Content analysis details: (3.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 3.8 AXB_XMAILER_MIMEOLE_OL_024C2 AXB_XMAILER_MIMEOLE_OL_024C2 X-Scan-Signature: 3f8d74a8c70dd416d0a3a1dbcb9bb89f Subject: LF: TRANSVERTERS Content-Type: multipart/alternative; boundary="----=_NextPart_000_0026_01CDBC3E.18D997C0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d7b8b50993edc784a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0026_01CDBC3E.18D997C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RIG/TRANSVERTER HEAT I have noticed when running a Transceiver at low power for Transverter = or other use the Transceiver PA gets very HOT so it would appear that = this is an inefficient approach except the Transceiver has a dedicated = low power output. I was wondering what system was used to reduce this power. It would be = better to disable the PA and take the output from the driver stage. It is vy noticeable on an IC-706 de G3KEV ------=_NextPart_000_0026_01CDBC3E.18D997C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
   RIG/TRANSVERTER = HEAT
I have noticed when running a Transceiver at low = power for=20 Transverter or other use the Transceiver PA gets very HOT so it would = appear=20 that this is an inefficient approach except the Transceiver has a = dedicated low=20 power output.
I was wondering what system was used to reduce = this power.=20 It would be better to disable the PA and take the output from the driver = stage.
It is vy noticeable on an IC-706
 
de G3KEV
 
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