I honestly don't know, since I think it would depend on how conscientious the laptop manufacturer was handling ground issues. There may not be any assurance that signal grounds are common with things like the switching power supply ground, etc.
I would think that it's worth a try, though. 73, Dave AB7E On 9/24/2011 9:34 AM, alan geller wrote: > Dave, > If one is using a laptop, can a screw post from an unused multi-pin > style connector be an effective ground connection? > > Alan/K6ADG > > Date: Fri, 23 Sep 2011 09:08:26 -0700 > From: David Gilbert <xda...@cis-broadband.com > <mailto:xda...@cis-broadband.com>> > Subject: Re: [Elecraft] noise on SSB modulation > To: dk...@mmmonvhf.de <mailto:dk...@mmmonvhf.de> > Cc: elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net> > Message-ID: <4e7caefa.1060...@cis-broadband.com > <mailto:4e7caefa.1060...@cis-broadband.com>> > Content-Type: text/plain; charset=ISO-8859-15; format=flowed > > > If you are using any kind of rig control with your computer (and > therefore have a shield connection between the K3 and the computer, such > as via an RS-232 cable), make sure the chassis of your K3 is securely > bonded to the chassis of the computer with a very short length of large > gauge wire or section of shielded braid. I had to go down to less than > a foot of RG-8 shielded braid to eliminate all hum on my signal. > > 73, > Dave AB7E ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
