* On 2010 24 Nov 14:55 -0600, [email protected] wrote: > Would someone please explain the purpose and function of the low cut and high > cut controls on the K3? There doesn't seem to be any explanation I can find > in the current user's manual and I'd like to make sure I'm understanding > their function correctly because the response I see on the P3 passband icon > contridicts what I expected to see occur when increasing or decreasing either > setting. Thanks very much.
Gary, it may be easier to visualize each control manipulating a variable high pass and low pass filter. The Lo Cut cuts off low frequencies, or rather, sets the cutoff frequency of a high pass filter. The Hi Cut does likewise, except it controls the cutoff frequency of a low pass filter. They allow you to adjust either side of the passband independently. You can acheive the same thing with the Width and Shift controls it's just that the way the K3 is set up using Width works well on CW as it adjusts both cutoff frequencies but maintains a constant center frequency of the passband. On SSB using either the Lo or Hi Cut controls can significantly reduce QRM from one side or the other. On my recently departed FT-920 only the Lo and Hi Cut controls were available in the DSP. I like the K3's selection of either way of doing it depending on the situation. Over this past SSB Sweepstakes I found the Lo/Hi Cut indespensible for digging stations from between others. Experiment! 73, de Nate N0NB >> -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Ham radio, Linux, bikes, and more: http://n0nb.us/index.html ______________________________________________________________ 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
