16 Feb
2000
16 Feb
'00
6:05 p.m.
On Wed, Feb 16, 2000 at 06:57:47PM -0700, Shawn T. Rutledge wrote:
No, not exactly. But we are limited to the same
bandwidth as an FM
voice channel, so there is a practical limit. 9600 baud fits into the
permissible deviation well enough and is commonly used on 2 meters. (Doing
true FSK rather than an audio simulation of FSK helps minimize the bandwidth
used.)
Wait, 9600 baud in an audio channel using FSK?!?!?! I failed almost every
course I ever took but I coulda sworn there was some rule that you couldn't
get more BPS than half the channel width with FSK? What are the tone freqs
(and which is which, does the L.S.M.F.T. rule still apply?)?
John Wilson
D Bit