Return-Path: Received: from rly-md07.mx.aol.com (rly-md07.mail.aol.com [172.20.29.145]) by air-md01.mail.aol.com (v126.13) with ESMTP id MAILINMD014-9124b267f362f8; Mon, 14 Dec 2009 13:09:06 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md07.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMD072-9124b267f362f8; Mon, 14 Dec 2009 13:08:56 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NKFJj-0005wm-E8 for rs_out_1@blacksheep.org; Mon, 14 Dec 2009 18:06:43 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NKFJj-0005wd-1E for rsgb_lf_group@blacksheep.org; Mon, 14 Dec 2009 18:06:43 +0000 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NKFKv-0004fh-83 for rsgb_lf_group@blacksheep.org; Mon, 14 Dec 2009 18:07:59 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlAFAFYNJktZ8INV/2dsb2JhbACIXtAFhCsE X-IronPort-AV: E=Sophos;i="4.47,395,1257120000"; d="scan'208";a="338211494" Received: from unknown (HELO xphd97xgq27nyf) ([89.240.131.85]) by out1.ip07ir2.opaltelecom.net with SMTP; 14 Dec 2009 18:07:50 +0000 Message-ID: <002b01ca7ce8$587aa510$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <57a24ca70912090730q682ffc79g7ffa9582e0cc40fa@mail.gmail.com> <20091210100700.32DEC31E703@smtps01.kuleuven.be> <1260444821.6353.65.camel@vaio3rd> <1260449921.6353.77.camel@vaio3rd> <200912141851290399.0E3514C6@smtp2.numeo.fr> Date: Mon, 14 Dec 2009 18:07:48 -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: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: Re: TX-2200A Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-IP: 193.82.116.20 Can u afford it plus the psu ? Is it cost effective how much would u use it? It depends on the amp class, is it linear, or class D, E, F or G G3KEV ----- Original Message ----- From: "John RABSON" To: Sent: Monday, December 14, 2009 5:51 PM Subject: LF: Re: TX-2200A May I add a somewhat late comment about this product, please? It seems to me that there are several different requirements for a transmitter for 136 kHz, depending upon what any individual needs. Being able to generate 1 kW is not always necessary. One thing that struck me about this unit is that the power level can be varied over a considerable range. When setting up an antenna and its connection to the feed line, it is very useful to start with low power (hence low voltage) so as not to stress the various components unnecessarily. One thing I like about this unit is that it can be used for ordinary hand-sent CW. Presumably QRSS would not be a problem. Also, can this rig be used for some of the more sophisticated modes? I do not think I have a complete set of the e-mails of this thread. Please will someone enlighten me. Thanks. 73 John Rabson F5VLF 58800 Cervon France JN17vg