K3: ducking this topic
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Wayne said,
In the interim you might try a non-zero value of CW semi-QSK delay, assuming you don't need full break-in. My comments: This request is something I've never heard of and I am having a hard time imagining an actual use for it. If you turn the AF down (or duck it), then they station that you still want to hear must be relatively "loud"...or at least above the din. So in addition to Wayne's suggestion (which I agree with and was actually my first reaction), how about just turning down the RF gain for that QSO to the point where the noise (almost?) is out of the picture but the guy you want to hear, should he break you, is still audible? de Doug KR2Q _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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Douglas,
To avoid bringing down the audio level of the station you are working, again, the "ducking" might be better done by automatic change of bandwidth instead of automatic change of gain setting: I would be listening around the band with, say 500 Hz, find a station, use e.g. CWT to tune properly. As soon as I call him, my receive bandwidth automatically drops to 100 Hz, and stays there until say 1 second has passed without any transmission from me; then the bandwidth widens to 500 Hz again until I transmit again. Saves the trouble of manual action. If instead I was calling CQ, I may or may not prefer this mode, as it would make me hear the correctly tuned caller before I can hear ones that are off frequency. 73, Erik K7TV ----- Original Message ----- From: "DOUGLAS ZWIEBEL" <[hidden email]> To: "Elecraft Reflector" <[hidden email]> Sent: Tuesday, January 20, 2009 1:04 PM Subject: [Elecraft] K3: ducking this topic > Wayne said, > In the interim you might try a non-zero value of CW semi-QSK delay, > assuming you don't need full break-in. > > > My comments: > This request is something I've never heard of and I am having a hard > time imagining an actual use for it. If you turn the AF down (or duck > it), then they station that you still want to hear must be relatively > "loud"...or at least above the din. > > So in addition to Wayne's suggestion (which I agree with and was > actually my first reaction), how about just turning down the RF gain > for that QSO to the point where the noise (almost?) is out of the > picture but the guy you want to hear, should he break you, is still > audible? _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by DOUGLAS ZWIEBEL
If I manually turn the RF gain down, then I've made it so only the loud
stations are loud to me. Quiet stations (and the band noise) are all but gone. When a loud station appears, I hear them well. When loud QRM appears, I hear it well too which is exactly what I want to avoid. A similar issue exits with auto bandwidth changes. If the ducking system narrows the bandwidth to get rid of distractions, that's fine until QRM appears on your freq. and masks your sidetone. Instead, I want my RF gain to be high enough so that the weak and strong signals get some AGC action. Then, I want the AF gain auto-reduced by maybe 6-10 dB so that I can clearly hear my sidetone over the RX audio. With this configuration, I should be able to hear just about anything, weak or strong, that appears on my freq, but it won't be loud enough to mask my sidetone. I'm aware, yet still in control. - Keith N1AS - - K3 711 - -----Original Message----- This request is something I've never heard of and I am having a hard time imagining an actual use for it. If you turn the AF down (or duck it), then they station that you still want to hear must be relatively "loud"...or at least above the din. So in addition to Wayne's suggestion (which I agree with and was actually my first reaction), how about just turning down the RF gain for that QSO to the point where the noise (almost?) is out of the picture but the guy you want to hear, should he break you, is still audible? de Doug KR2Q _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by DOUGLAS ZWIEBEL
_______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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The K3 is an SDR.
Let's make the most of it! 73, Tony W7GO Lee Buller wrote: > > Why do something so simple as use your fingers? Lets have the software > do it for us. > > Geesh! > > Lee - k0wa > > So in addition to Wayne's suggestion (which I agree with and was > actually my first reaction), how about just turning down the RF gain > for that QSO to the point where the noise (almost?) is out of the > picture but the guy you want to hear, should he break you, is still > audible? > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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