Path: utzoo!utgpu!CUVMA!SWL-L Date: Thu, 22 Feb 90 16:52:10 EST Reply-To: Dave Bakken Sender: Short Wave Listener's List Comments: Warning -- original Sender: tag was From: Dave Bakken Subject: Re: Sangean 803A hints X-To: swl-l@cuvmb.cc.columbia.edu To: UofToronto LAN redistribution Message-ID: <90Feb23.031514est.58754@ugw.utcs.utoronto.ca> Newsgroups: bitnet.swl-l Distribution: ut Approved: devnull@gpu.utcs.toronto.edu In article <16096@orstcs.CS.ORST.EDU> liud@guille.ECE.ORST.EDU.ECE.ORST.EDU (Don Liu) writes: >Recently I fixed several minor problems of my new Sangean receiver. >I am posting the followings in hope that some of you may use it as >reference. > >The problems are: >3) Crossmodulation (that is, strong local stations interference > when using a good antena) [ the fix] >3) You may have crossmodulation if you find that a good antena would >make reception worse. reduce the RF gain will help reduce the cross >modulation, but the redustion is often not enough. There is a 68 ohm >resistor connecting the RF gain potentiometer to ground. Shorting >this resistor will increase the gain control range greatly thus >fixing this problem. Thanks for the info - this sounds really helpful. Just to make sure you are as precise as you sound: does mod #3 increase the gain control or just shift it down? Having less gain would be really nice for some instances, but, of course, sometimes you need high gain for strong signals. Also, are there any possible negative side-effects or loss of other performance by the mods you recommend? Thanks. Dave -- Dave Bakken Internet: bakken@cs.arizona.edu 721 Gould-Simpson Bldg UUCP: uunet!arizona!bakken Dept of Computer Science; U of Arizona Phone: +1 602 621 8372 (w) Tucson, AZ 85721 USA FAX: +1 602 621 4246