It can be proven mathematically that the speed at which information can be sent decreases as the bandwidth of the channel decreases. One of the ways of increasing the signal/noise ratio of a channel is by narrowing it, but there's a trade-off -- you have to slow down the data rate. In our case, this means that the ringing will cause the dits to run together unless you ask the guy to QRS!
If the s/n ratio is good with a wider bandwidth, then you don't need the APF. Turning it on will reduce the top speed that can be used. There's no free lunch! On 11/17/2010 8:31 AM, [email protected] wrote: > I am not too impressed as the hollow ringing sounds like a regenerative > receiver going into oscillation. It can help you distinguish the dits but it > isn't pretty listening. I think the manuals need to catch up with the > betas so I can get more comfortable with the adjustments. > > Buck > > k4ia > k3#101 -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
