Wow! My thanks to all for the plentyful response. It turned out eventually that the problem was insufficient delay between sending a request for data (e.g. FA;) and reading the response from the serial port. The FT847/FT857 needs a delay of about 2ms, the K3 needs about 50ms minimum. I increased the delay to usleep( 50000 ) after the write() to the serial port and all is well now. This delay AFAIT is not the delay in the response of the K3 (I have set a delay of 500ms in the
serial port attributes) but time needed by the K3 perhaps to process the request for data and fill in its output buffer. Anyhow, it all works well now. As far as Hamlib is concerned, my personal preference to programing is to avoid as far as possible dependency on other programs or libraries, even though they may offer convenience and labor saving. But there are other advantages sometimes, originally I used the fftw2 lib to produce the waterfall, but it added 500kb to the binary and was much more powerful than needed. I now use a very simple fft of my own, which is table-based and uses only integer arithmetic. Its a total of about 80 lines, including comments! Regards Neoklis - Ham Radio Call 5B4AZ QTH Locator KM64KR Website: http://www.qsl.net/5b4az/ ______________________________________________________________ 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
