Nate, Your explanation is excellent.
One of the things I miss in the Rice Box Radio manuals are the diagrams used to describe this type of thing. Sometimes a picture really is worth a thousand words. 73, Tom Childers Radio Amateur N5GE Licensed since 1976 QCWA Member 35102 ARRL Life Member On Wed, 24 Nov 2010 15:31:38 -0600, Nate Bargmann <n...@n0nb.us> wrote: >* On 2010 24 Nov 14:55 -0600, n6...@cox.net 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 >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
