Zero Beat
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Now that we have such great filters in the K3, we have another problem: Many other operators just can't find the right frequency. Not only do the stations calling you often miss your passband, those calling adjacent stations DO end up in your passband. We have our CWT, but what we really need is a feature which gets the OTHER station on frequency. Now, I understand that this is technically challenging, but that's just the sort of thing the folks at Elecraft are so good at.
Meanwhile, I guess we'll just have to hope that more of those operators buy K3's. 73, Scott K9MA Scott Ellington Madison, Wisconsin 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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Some form of Tracking Filter? The challenge would be to teach the filter to
ignore stations who are not calling you :-) 73, Geoff. GM4ESD (Sorry Scott for this duplicate, I did not copy the List when I replied.) Scott Ellington wrote on Monday, January 31, 2011 at 18:38Z: > Now that we have such great filters in the K3, we have another problem: > Many other operators just can't find the right frequency. Not only do the > stations calling you often miss your passband, those calling adjacent > stations DO end up in your passband. We have our CWT, but what we really > need is a feature which gets the OTHER station on frequency. Now, I > understand that this is technically challenging, but that's just the sort > of thing the folks at Elecraft are so good at. > > Meanwhile, I guess we'll just have to hope that more of those operators > buy K3's. > > 73, > > Scott K9MA ______________________________________________________________ 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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In reply to this post by Scott Ellington
No, no. That kind of tracking I can do with the RIT, but on a crowded band there's an excellent chance that there are lots of other loud signals on either side of that little 400 Hz slot I've chosen. We need a K3 feature that grabs the VFO of a station halfway around the world and zero-beats MY K3. (Only when he's calling me, of course.) I didn't say this would be easy.
Maybe W0EB's "zero-beat monkey" is the solution, after all. 73, Scott K9MA On Jan 31, 2011, at 12:59 PM, Geoffrey Mackenzie-Kennedy wrote: > Some form of Tracking Filter? The challenge would be to teach the filter to ignore stations who are not calling you :-) > > 73, > Geoff. > GM4ESD > > > Scott Ellington wrote on Monday, January 31, 2011 at 18:38Z: > > > >> Now that we have such great filters in the K3, we have another problem: Many other operators just can't find the right frequency. Not only do the stations calling you often miss your passband, those calling adjacent stations DO end up in your passband. We have our CWT, but what we really need is a feature which gets the OTHER station on frequency. Now, I understand that this is technically challenging, but that's just the sort of thing the folks at Elecraft are so good at. >> >> Meanwhile, I guess we'll just have to hope that more of those operators buy K3's. >> >> 73, >> >> Scott K9MA > > Scott Ellington Madison, Wisconsin 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 wonder, wouldn't pass band tuning do well at that too? And yes, zero beating would be nice too. Zerobeating would be doable, it would seem, if both radios were K3s, and could talk to each other, say on the internet, or a different path, digital, to perform the necessary handshake and tx adjustments. --... ...-- Dale - WC7S in Wy > > No, no. That kind of tracking I can do with the RIT, but on a crowded band there's an excellent chance that there are lots of other loud signals on either side of that little 400 Hz slot I've chosen. We need a K3 feature that grabs the VFO of a station halfway around the world and zero-beats MY K3. (Only when he's calling me, of course.) I didn't say this would be easy. > > Maybe W0EB's "zero-beat monkey" is the solution, after all. > > 73, > > Scott K9MA ______________________________________________________________ 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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Dale,
Let's face reality. Only 35% of the hams on the air know how to zero-beat (maybe it is 20%, I have not taken a poll). They just trust that their transceivers will do the job for them - if they can hear the other signal, then they assume they will transmit on their frequency - without regard to how far off the center frequency they may be. I have had K2s here for repair where the operator said he wanted a 750 Hz sidetone pitch, but I discover that he has the ST P parameter set for the default of 600 Hz, That is an automatic 150 Hz misalignment of the received pitch and the transmitter offset. Tell you K1, K2, K3 the sidetone pitch that you prefer to listen to, and set the menu for that same sidetone pitch. Those transceivers (and many others) will offset the transmit frequency by the frequency that you have set in the menu. So the remaining problem is to tune the desired signal in at your chosen sidetone pitch - some do that well, and some do that poorly. We have lost a lot in moving from separate transmitters and receivers to transceivers. Sure the Transceiver can do it "automagically", but it all depends on the parameters you have set into the transceiver. Yes, I have even heard some "old-timers" who knew quite well how to zero-beat using separate transmitters and receivers that have become confused with the concept of zero-beating when using a transceiver. That is just sad to me, but has to be dealt with as a "fact of life". Know your transceiver and know your operating conditions, and set things up accordingly -- in other words RTFM. 73, Don W3FPR On 1/31/2011 7:07 PM, Dale Putnam wrote: > I wonder, wouldn't pass band tuning do well at that too? And yes, zero beating would be nice too. Zerobeating would be doable, it would seem, if both radios were K3s, and could talk to each other, say on the internet, or a different path, digital, to perform the necessary handshake and tx adjustments. > > --... ...-- Dale - WC7S in Wy > ______________________________________________________________ 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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If everyone was able to call exactly zero beat with the DX station you can be sure that I would not. I would be the only one readable. (CW)
-Robby VY2SS |
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Yeah, that's what is happening with the skimmers
Fred. KE7X -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Robby.VY2SS Sent: Tuesday, February 01, 2011 5:52 AM To: [hidden email] Subject: Re: [Elecraft] Zero Beat If everyone was able to call exactly zero beat with the DX station you can be sure that I would not. I would be the only one readable. (CW) -Robby VY2SS -- View this message in context: http://elecraft.365791.n2.nabble.com/Zero-Beat-tp5978170p5980800.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ 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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Not really. Spots typically are to the nearest 100 Hz, whether coming
from Skimmer or traditional DX cluster users. The only thing that's different is that the random human errors are eliminated, or rather replaced by Skimmer erros, which happen rather less often. The wild thing about jumping on Skimmer spots is that you can often get to someone before he has finished his first CQ. 73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com, spots at telnet.reversebeacon.net, port 7000 On 2/1/2011 10:06 AM, Cady, Fred wrote: > Yeah, that's what is happening with the skimmers > > Fred. KE7X > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Robby.VY2SS > Sent: Tuesday, February 01, 2011 5:52 AM > To: [hidden email] > Subject: Re: [Elecraft] Zero Beat > > > If everyone was able to call exactly zero beat with the DX station you > can be sure that I would not. I would be the only one readable. (CW) > > -Robby > VY2SS > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Zero-Beat-tp5978170p5980800.html > Sent from the [K3] mailing list archive at Nabble.com. > ______________________________________________________________ > 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 > > 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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In reply to this post by Robby.VY2SS
Robby,
There are some secrets that should be kept secret (HI) ;o) Joe K2UF No trees were harmed in the sending of this e-mail; however, many electrons were inconvenienced. -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Robby.VY2SS Sent: Tuesday, February 01, 2011 7:52 AM To: [hidden email] Subject: Re: [Elecraft] Zero Beat If everyone was able to call exactly zero beat with the DX station you can be sure that I would not. I would be the only one readable. (CW) -Robby VY2SS -- View this message in context: http://elecraft.365791.n2.nabble.com/Zero-Beat-tp5978170p5980800.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ 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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