Thanks Nate. The audible effects are as I expected them to be when adjusting low or high cut but the visual representations on both the K3 and the P3 were not and had me a bit confused. I'll continue to experiment. 73, Gary
-----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nate Bargmann Sent: Wednesday, November 24, 2010 1:32 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 LoCut/HiCut 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