Hi K3 fans Speaking about HI and LO Cut controls. I have notice this:
Tune a carrier at for example, 1 KHz tone. Set a computer waterfall with enough frequency resolution to see few Hz changes Play with HI and LO Cut controls up and down (of course, let the 1 KHz signal pass trough the filter). Result, the carrier frecuency will be shifted by a few Hz. Do you hace same results in your K3? Do Low and Hi Cut controls only have effect on the DSP filters? Thanks, Ramiro. EA4NZ Amateur Radio Operator N5GE escribió: > 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 > ______________________________________________________________ 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
