G'day, Continuing my investigation into PC noise I tried for the first time using the CAT interface of my microHAM CW Keyer. Basically this provides a USB to RS232 conversion CAT interface and a WinKey. For more info on the other twiddly bits see the microHAM web site.
K3 on 6 metres, PR6 on, PRE OFF and the antenna port terminated with 50 ohm load. No noise. Quieter than the CAT6 based RS232 cable I use because with the cable I can just hear PC noise as I task switch and the CRT monitor updates. Previous measurements showed the directly connected KUSB to be approximately +10dB noisier than the RS232 cable. No connection with microHAM other than buying a CW Keyer a couple of years ago. Regards, Mike VP8NO ______________________________________________________________ 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
