This is to address the question of why a mode can work at -10 dB when Shannon-Hartley indicates this is not possible for that mode. The calculations adjust the reported dB for a 3kHz signal to the show the dB for bandwidth of the mode. This is the dB applicable for Shannon-Hartley.
I lacked the ambition this evening to calculate the Eb/N0 for the modes to see how they compared on that basis. I just tossed in the theoretical channel capacity to show the theoretical capacity. The results are also applicable to the threads on possible new modes of operation. Rud Merriam K5RUD ARES AEC Montgomery County, TX http://TheHamNetwork.net -----Original Message----- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of "John Becker, WØJAB" Sent: Saturday, October 27, 2007 7:16 PM To: digitalradio@yahoogroups.com Subject: RE: [digitalradio] Re: QEX Article on HF Digital Propagation Sorry but I may have missed something. Your point is ? ? ?
