The SignaLink USB units work very easily with the K2 all you need is an USB port on the computer it has its sound card built in it.
As far as QRP and digital modes they made for one another. 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100 P3/SVGA--KAT500--W2 Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G 300+w--(2) B-5016-G's 165w 2m -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Don Wilhelm Sent: Thursday, November 21, 2013 7:23 AM To: Curt; [email protected] Subject: Re: [Elecraft] [K2]PSK31 QRP? Curt, Most any interface box will work with the K2 if you use the headphone output and mic input - even homebrew. PTT can be derived from a USB to serial adapter and a "one transistor keying" circuit. Take a look at my website www.w3fpr.com for the K2 Fixed Audio Output article and the Switchbox for Digital Modes article. It may be possible to use the laptop soundcard, but external soundcards are easy to use and inexpensive. You do not need the Compression Disable part of the switchbox article if you turn on RTTY mode and set up the filters just like your SSB filters. With RTTY mode, the compression setting is independent of the setting used for SSB -- Compression must be at 1-1 for data modes. You can find an updated circuit for the Fixed Audio Output at the newly mirrored N0SS website http://www2.opparc.org/mirrors/n0ss/www.n0ss.net/wsdindex.html. Boards are no longer available, but the circuit is simple enough to construct on perfboard. 73, Don W3FPR On 11/21/2013 7:49 AM, Curt wrote: > For some reason I've become interested in trying PSK31 with my K2/10. > Receive works well, but haven't tried transmitting yet because my > laptop has only USB connectors. Before buying an interface, would > appreciate knowing whether others have had success with QRP level > PSK31. Which interfaces play well with the K2? > > 73, Curt KB5JO > > ______________________________________________________________ > 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 ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3426 / Virus Database: 3629/6853 - Release Date: 11/20/13 ______________________________________________________________ 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
