> What speed do you have in mind? 1000 to 1500 letters per minute; 200 to 300 wors per minute.
>The word PARIS used as a standard for measuring >words per minute contains > 50 code elements so one word per second, 60wpm, > is 50 baud. Right; the 'standard' formula; BW = 4 x wpm, (e.g., 200wpm = 800hz) >The bandwidth it takes to transmit that depends >on the modulation method > and how much shaping you apply to the signal. The keying method would be injected audio tone using a sound card program specifically for HSCW (MSDSP 2000). The shaping would not be done by the circuits of the rig. It's my understanding that there is less bandwidth using the tone injected method, but not sure how to measure it. Thanks, Tony KT2Q ----- Original Message ----- From: "jhaynesatalumni" <[EMAIL PROTECTED]> To: <digitalradio@yahoogroups.com> Sent: Monday, May 28, 2007 12:59 PM Subject: [digitalradio] Re: HSCW Bandwidth? > --- In digitalradio@yahoogroups.com, Tony > <[EMAIL PROTECTED]> wrote: >> >> Does anyone know the approximate bandwidth for >> injected audio tone high speed CW? Is there a >> way >> to calculate this? >> > What speed do you have in mind? The word PARIS > used > as a standard for measuring words per minute > contains > 50 code elements (marks and spaces of unit > length) so > one word per second, 60wpm, is 50 baud. The > bandwidth > it takes to transmit that depends on the > modulation method > and how much shaping you apply to the signal. > > >
