Linux-Hams archive - December 1999: Re: 10Mbit @ 10GHZ (was linux soundmodem over 9600 baud ?)
Re: 10Mbit @ 10GHZ (was linux soundmodem over 9600 baud ?)
Hamish Moffatt (muwfum@emengine1.com)
Fri, 3 Dec 1999 02:23:27 +1100
On Wed, Dec 01, 1999 at 10:15:24PM +0000, Richard Stearn wrote:
> My reading of the UK Licence conditions is that a digital station must id
> once every 15 mins in morse at no more than 20 wpm. That is not going to do
> the bit error rate much good! This issue will need to be resolved country by
> country.
Perhaps the ID could be just outside of the bandwidth of the actual
signal. The MT63 (a recent digital mode) developers are now talking
about adding a semi-continuous CW ID running just 100 Hz or less outside of
the actual information bandwidth (which is 500, 1000 or 2000 Hz).
Hamish
--
Hamish Moffatt Mobile: +61 412 011 176 terhi.victor@logonet.com
Rising Software Australia Pty. Ltd. http://www.risingsoftware.com/
Phone: +61 3 9894 4788 Fax: +61 3 9894 3362 USA: 1 888 667 7839