--- Jim Thompson <[EMAIL PROTECTED]> wrote: > 'always'? > > 1) only send RF (ok, and IR) out when you have data > to send.
I thought "dwell time" referred to the time that a given channel is chosen, regardless of whether there is anything to send. Either way, the other point of course is the main thing: > 2) higher bit-rates: less time on the air for a > given amount of data I thought that the bit-rates for DS were 1 and 2 Mbps and for FH were 1-3 Mbps. Packet size limits should be the same (although maybe in practice people tend to use shorter ones for one PHY or the other---I've never heard of this). So if anything, the FH would spend less time being active on a given frequency. My apologies if I've misunderstood something here. > 1+2 = 5! Does 5! = 120? Does 120 = 1+2+0 = 1+2? > > On Tuesday, September 24, 2002, at 04:27 PM, John > Byrnes wrote: > > > I don't understand Tim's comment: > > > >> Unfortunately, since FH has a higher dwell time > than > >> DS it will tend to cause more interference with > >> other devices such as video over FM like > television > >> ENG uses. > > > > Shouldn't the "dwell time" of DS be however long > you > > leave the device turned on, since it always > occupies > > the same frequencies? I can imagine that DS > causes > > less interference with other users because you can > > choose to set your DS channel away from other > users' > > channels, whereas FH will hit everybody's channel > over > > time. > > > > The dwell time of 802.11 FH might be longer than > the > > that of other hoppers, like bluetooth (I'm pretty > sure > > the 802.11 is adjustable, up to pretty long > dwells), > > which might also cause more noticeable > interference to > > other users. > > > > John > > > > __________________________________________________ > > Do you Yahoo!? > > New DSL Internet Access from SBC & Yahoo! > > http://sbc.yahoo.com > > -- > > general wireless list, a bawug thing > <http://www.bawug.org/> > > [un]subscribe: > http://lists.bawug.org/mailman/listinfo/wireless > > > __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
