I similarly spent ages hunting down noise from my PC and associated cables.
There are USB leads available which have a transparent outer sheath, which "show off" the silver plated screen. I thought this was just a gimmick, but it turns out they were quite effective. Remember you'll probably need ferrites on both ends of the run with a minimum of one turn through each ferrite. For many purposes, just clipping a choke on the cable is not effective - depending on your frequency of interest and the level of noise. Good luck ! John G4ZTR -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Tom Blahovici Sent: 06 November 2013 06:28 To: [email protected]; [email protected] Subject: Re: [Elecraft] Serial Connection for K2 Hi, I see ebay has some 8 port Edgeports for $50. I'm looking to cut down on computer generate noise in my shack. Currently I have 6 or 7 usb to serial adapters. I reduced noise quite a bit as shown on the P3 using some ferrite cores but the whole mess is now quite a sore sight. Not only that you need longer cables to wrap through those cores. So here's a few questions: is it better to run one high quality USB cable to a device such as an edge port and then run serial cables from there or have many usb to serial converters and extensions? Anyone have a source for properly shielded USB cables? Thanks On Nov 5, 2013, at 8:54 PM, Don Wilhelm <[email protected]> wrote: > Tom, > > Use a USB to serial adapter with an FTDI chipset - the Prolific chipset does not like to run at the slower rate required by the K2. > > I have also had success with a Keyspan adapter. > If you want to go 'first class', use an Edgeport USB to serial converter - I have a 4 port model that works flawlessly. Note that this is usually referred to as a 'converter' rather than an 'adapter' - it is often used in commercial environments and is quite robust - those termed 'adapter' are usually intended for the consumer market, and the relative price indicates that fact. When I bought mine, they were selling on Ebay for a very low price, someone had a big pile of used ones that he was selling off. > > 73, > Don W3FPR > > On 11/5/2013 8:08 PM, Tom Field wrote: >> I just completed the KPA100 and KIO2 mods for my K2. I have a new Dell >> desktop running Windows 8. I don't have a serial port on the machine. What >> is the recommended conversion from serial to USB? >> >> Tom F. >> KI6NRD >> Elecraft K2 #7432 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
