>out theoretically 10 signals on the same frequency of 1 cycle per second at
>different phases and get the character in one second instead of 8-10. What are you saying? This doesn't sound like any theory I've heard of. Are you implying PHASE ORTHOGONALITY? If so only two signals can be orthogonal in phase at the same frequency. At least that's the standard theory. Are you looking at this from a practical standpoint? If so I definitely need to think more about what you are saying because I'm totally lost and I used to work on Phase Lock Loops for a living. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sanford Weinberg Sent: Thursday, December 18, 2003 7:06 AM To: [EMAIL PROTECTED] Subject: Re: [SOCALWUG] Difference between Frequency and Phase? Great question... you are correct in that frequency is how long it takes to complete one cycle (cycles per second) and phase is where it starts...Disclaimer: this explanation is simplified for the concepts - Remember this is a digital system. we don't look at the entire wave just if we are at a peak or baseline at specific (sample) times. If we have a frequency of one cycle per second (1 hertz) then to send one character would take us typically 8 - 10 seconds (bit by bit plus overhead bits). Remember my choice of frequency is probably limited by what I want to use it for and the FCC If I synchronize clocks on receiver and sender and I can process faster then my frequency (say a tenth of a second in our example) then I can send out theoretically 10 signals on the same frequency of 1 cycle per second at different phases and get the character in one second instead of 8-10. Let me know if you more detail is needed At 02:58 AM 12/18/2003, you wrote: >Hello, > >Im having difficulties understanding exactly what Phase means, Im >reading >802.11 Wi-Fi handbook >(Neil Reid&Ron Seide) which explains that frequency is the complete cycle >of a wave. >Phase is where the wave begins its cycle. Makes sense I guess. >What becomes confusing is BFSK and BPSK, BFSK sends an on or off bit with >each frequency, >BPSK sends two states, a "one" with one phase and "zero" with another phase. >If phase just determines at what point in time a frequency begins its >cycle, how can there be a modulation scheme based on phase? > >Thanks > > >-------------------- >"Computer games don't affect kids, I mean if Pac Man affected us as >kids, >we'd all run around in a darkened room munching pills and listening to >repetitive music." - Kristian Wilson, Nintendo, Inc, 1989. > >_________________________________________________________________ >Worried about inbox overload? Get MSN Extra Storage now! >http://join.msn.com/?PAGE=features/es >
