K3 CW filter choices
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Well, I'm in for a K3, and I need to pick some CW filters. I've read all
the threads, checked the graphs, and now would appreciate some experiential reports/advice. I operate almost exclusively CW, mostly chasing DX, contests, and some occasional rag chewing. SSB only if no other choice/challenge. What have folks been using for (1) brick-wall protection under demanding CW conditions, and (2) looking around and casual chatting? Data modes aren't a consideration at this point. Thanks much in advance. ...robert -- Robert G. Strickland, PhD, ABPH - KE2WY [hidden email] Syracuse, New York, USA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual CW-only op
- mostly ragchews, but occasional DX, QRP and QRQ. I wanted each filter to have a (more or less) dedicated purpose. The thinking was: - 2.7k for listening in the background, tuning around, before a QSO - 400 Hz when engaged in QSO. Wide enough for a little elbow room or when someone's slightly off freq - 200 Hz when things hit the fan. So far I don't find it too narrow. I chose the 200 over the 250 because I thought the 250 would be too close to the 400. Prior to the K3, for 20 years I used the 250/500/1.8k setup, so I had reservations about switching to 200/400/2.7k. I was very tempted to start with the 250 for that reason. In the end I went for the 200 because when things hit the fan, you need narrow. I was also concerned that the 200 might be too hard on the ears, as even some 250 filters have been in my experience. I don't find this problem at all with the 200. No fatigue. In reality, this trio has worked out perfectly (for my style of operating). I find it highly flexible, yet not so much that I'm wondering which filter to use for a given condition. After using this trio now for a couple years, I doubt I'd ever change it for CW use. Hope this helps. --Andrew, NV1B .. On Fri, Feb 3, 2012 at 10:17 PM, Robert G. Strickland <[hidden email]>wrote: > Well, I'm in for a K3, and I need to pick some CW filters. I've read all > the threads, checked the graphs, and now would appreciate some > experiential reports/advice. I operate almost exclusively CW, mostly > chasing DX, contests, and some occasional rag chewing. SSB only if no > other choice/challenge. What have folks been using for (1) brick-wall > protection under demanding CW conditions, and (2) looking around and > casual chatting? Data modes aren't a consideration at this point. Thanks > much in advance. > > ...robert > -- > Robert G. Strickland, PhD, ABPH - KE2WY > [hidden email] > Syracuse, New York, USA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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As you say your are a casual CW operator. Perhaps some feedback from a
nearly 100% CW operator of 50+ years would be useful too. 1) Tuning 400 Hz 2) When things get tough 200 or 250 Hz. The utility of the 200 Hz signal has been especially good for pulling out really weak ones on 15-6M. 3) Never anything wider then the above. Not interested in unwanted AGC activation for out of within passband, but nowhere near the listening frequency, signals. With the increased solar flux, many bands are pretty crowded and signals are strong. I do a lot of S&P operations and one wants that to be single signal type of operation. Fooling around with filter width in these days of instant packet pileups isn't what I want to be doing. The other thing that helps, even though those with hearing aids may not be able to do it, is earphones. At my age the presence of external noise sources interferes with my ability to focus and copy CW. Earphones eliminate much of that. I suspect the same is true for SSB. In the older days the narrower filters tended to ring. That annoying ringing seems to have disappeared for this generation of filters/dsp. 73 de Brian/K3KO On 2/4/2012 13:12, Andrew Moore wrote: > I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual CW-only op > - mostly ragchews, but occasional DX, QRP and QRQ. > > I wanted each filter to have a (more or less) dedicated purpose. The > thinking was: > > - 2.7k for listening in the background, tuning around, before a QSO > > - 400 Hz when engaged in QSO. Wide enough for a little elbow room or when > someone's slightly off freq > > - 200 Hz when things hit the fan. So far I don't find it too narrow. I > chose the 200 over the 250 because I thought the 250 would be too close to > the 400. > > Prior to the K3, for 20 years I used the 250/500/1.8k setup, so I had > reservations about switching to 200/400/2.7k. I was very tempted to start > with the 250 for that reason. In the end I went for the 200 because when > things hit the fan, you need narrow. I was also concerned that the 200 > might be too hard on the ears, as even some 250 filters have been in my > experience. I don't find this problem at all with the 200. No fatigue. > > In reality, this trio has worked out perfectly (for my style of operating). > I find it highly flexible, yet not so much that I'm wondering which filter > to use for a given condition. After using this trio now for a couple > years, I doubt I'd ever change it for CW use. > > Hope this helps. > --Andrew, NV1B > .. > > > On Fri, Feb 3, 2012 at 10:17 PM, Robert G. Strickland<[hidden email]>wrote: > >> Well, I'm in for a K3, and I need to pick some CW filters. I've read all >> the threads, checked the graphs, and now would appreciate some >> experiential reports/advice. I operate almost exclusively CW, mostly >> chasing DX, contests, and some occasional rag chewing. SSB only if no >> other choice/challenge. What have folks been using for (1) brick-wall >> protection under demanding CW conditions, and (2) looking around and >> casual chatting? Data modes aren't a consideration at this point. Thanks >> much in advance. >> >> ...robert >> -- >> Robert G. Strickland, PhD, ABPH - KE2WY >> [hidden email] >> Syracuse, New York, USA >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> 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:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 > > ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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100% agree
OZ1CCM -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Brian Alsop Sent: 4. februar 2012 14:32 To: [hidden email] Subject: Re: [Elecraft] K3 CW filter choices As you say your are a casual CW operator. Perhaps some feedback from a nearly 100% CW operator of 50+ years would be useful too. 1) Tuning 400 Hz 2) When things get tough 200 or 250 Hz. The utility of the 200 Hz signal has been especially good for pulling out really weak ones on 15-6M. 3) Never anything wider then the above. Not interested in unwanted AGC activation for out of within passband, but nowhere near the listening frequency, signals. With the increased solar flux, many bands are pretty crowded and signals are strong. I do a lot of S&P operations and one wants that to be single signal type of operation. Fooling around with filter width in these days of instant packet pileups isn't what I want to be doing. The other thing that helps, even though those with hearing aids may not be able to do it, is earphones. At my age the presence of external noise sources interferes with my ability to focus and copy CW. Earphones eliminate much of that. I suspect the same is true for SSB. In the older days the narrower filters tended to ring. That annoying ringing seems to have disappeared for this generation of filters/dsp. 73 de Brian/K3KO On 2/4/2012 13:12, Andrew Moore wrote: > I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual > CW-only op > - mostly ragchews, but occasional DX, QRP and QRQ. > > I wanted each filter to have a (more or less) dedicated purpose. The > thinking was: > > - 2.7k for listening in the background, tuning around, before a QSO > > - 400 Hz when engaged in QSO. Wide enough for a little elbow room or > when someone's slightly off freq > > - 200 Hz when things hit the fan. So far I don't find it too narrow. > I chose the 200 over the 250 because I thought the 250 would be too > close to the 400. > > Prior to the K3, for 20 years I used the 250/500/1.8k setup, so I had > reservations about switching to 200/400/2.7k. I was very tempted to > start with the 250 for that reason. In the end I went for the 200 > because when things hit the fan, you need narrow. I was also > concerned that the 200 might be too hard on the ears, as even some 250 > filters have been in my experience. I don't find this problem at all with > > In reality, this trio has worked out perfectly (for my style of operating). > I find it highly flexible, yet not so much that I'm wondering which > filter to use for a given condition. After using this trio now for a > couple years, I doubt I'd ever change it for CW use. > > Hope this helps. > --Andrew, NV1B > .. > > > On Fri, Feb 3, 2012 at 10:17 PM, Robert G. > >> Well, I'm in for a K3, and I need to pick some CW filters. I've read >> all the threads, checked the graphs, and now would appreciate some >> experiential reports/advice. I operate almost exclusively CW, mostly >> chasing DX, contests, and some occasional rag chewing. SSB only if no >> other choice/challenge. What have folks been using for (1) brick-wall >> protection under demanding CW conditions, and (2) looking around and >> casual chatting? Data modes aren't a consideration at this point. >> Thanks much in advance. >> >> ...robert >> -- >> Robert G. Strickland, PhD, ABPH - KE2WY [hidden email] Syracuse, >> New York, USA >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> 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:[hidden email] > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: > 02/03/12 > > ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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