Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 03 Sep 2002 20:57:00 -0400 Message-ID: X-Original-Return-Path: Received: from spknpop1.spkn.uswest.net ([207.108.48.1] verified) by logan.com (CommuniGate Pro SMTP 4.0b7) with SMTP id 1721069 for lml@lancaironline.net; Tue, 03 Sep 2002 20:06:03 -0400 Received: (qmail 19017 invoked by uid 0); 3 Sep 2002 23:59:36 -0000 Received: from spkndslgw3poolb102.spkn.uswest.net (HELO ckrouse) (63.227.97.102) by spknpop1.spkn.uswest.net with SMTP; 3 Sep 2002 23:59:36 -0000 X-Original-Message-ID: <001a01c253a7$4739a840$6661e33f@ckrouse> From: "C Krouse" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Comm Antenna Testing X-Original-Date: Tue, 3 Sep 2002 17:09:03 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Dave, In my years as an RF technologist, I helped design high power amplifiers from prototype to first article. We almost always "tuned" our components at low power first and then tested them at high power. The results between low power and high power were almost always identical with the exception of the loss of power at the high end of the band. Typically, they worked just fine though. If you have a freq generator, then I would suggest that you follow Bob Jude's suggestion and sweep the entire bandwidth.....especially if you have a homemade antenna. Curtis Krouse N753K > All, > Another question for the antenna guys: > If I were to have a frequency generator and sweep the > frequency of interest to test the power transfer and > I did it a a low enough power so as to not to interfere with > any local users of a frequency, would the low power results > be identical to higher power results? > Dave >