KNB2 - odd behavior
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During SS this past weekend, I QSYed to a well-load 40 late Sunday and
noticed an impressive and unusual level of S9 noise. The NB1 was on at the time of the QSY (HI THRU). The DSP denoiser and a tighting of filters helped, but the noise was pervasive and still S5. On whim, I turned off the noise blanker and voila...no more noise (well no more than usual for my neighborhood). Turned the blanker back on...noise level back up. No difference between NB1 and NB2 and Hi/Low thru settings I played with this some more with the same result. Continued with the remainder of the contest. Today, after turning the radio back on, I've not been able to duplicate the problem with any combination of NB or DSP setting tried so far. Only difference, 40 CW is almost empty of signals here in TX tonight. Any insights? Otherwise, K2 2714 was a pleasure to use in the contest. 73 de David _______________________________________________ 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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David Zatopek KT5V wrote:
> During SS this past weekend, I QSYed to a well-load 40 late Sunday and > noticed an impressive and unusual level of S9 noise. The NB1 was on at the > time of the QSY (HI THRU). The DSP denoiser and a tighting of filters > helped, but the noise was pervasive and still S5. On whim, I turned off the > noise blanker and voila...no more noise (well no more than usual for my > neighborhood). Turned the blanker back on...noise level back up. No > difference between NB1 and NB2 and Hi/Low thru settings > > I played with this some more with the same result. Continued with the > remainder of the contest. Today, after turning the radio back on, I've not > been able to duplicate the problem with any combination of NB or DSP setting > tried so far. Only difference, 40 CW is almost empty of signals here in TX > tonight. Any insights? The NB can produce spurious signals when there are loud signals on the band. In the contest, there were so many loud signals that the usual symptom -- sort of a brapp brapp that follows the keying of the strong signal was replaced with an almost continuous noise. In order for a noise blanker to work it needs to pick up signals over a wide bandwidth. Turning on the noise blanker has a very severe effect on the receiver's dynamic range, which is why it's possible to turn it off! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ 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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Another more subtle side effect of the degradation of received signals by
the NB is the apparant key clicks generated by very strong signals. Before mentioning to anyone that they have bad key clicks it is suggested that you check to be sure your noise blanker is turned off. Occassionally I would get key-click complaints on my Ten-Tec Omni-V. I would ask the other station to turn off his noise blanker and check my signal again. "My" key clicks would disappear when the noise blanker was off. And as Dave can testify from first hand experience...a noiseblanker becomes useless during a contest with so many 1.5KW seven element yagi CW signals pointed at your little K2! The TS-930 and Orion NB's both behave the same way. They DO work great on 160M for weak signals in winter time when the electronic ignition of your furnace keeps zapping away all night. - Tom K2TA ----- Original Message ----- From: "Vic Rosenthal" <[hidden email]> To: "David Zatopek KT5V" <[hidden email]> Cc: <[hidden email]> Sent: Tuesday, November 09, 2004 12:47 AM Subject: Re: [Elecraft] KNB2 - odd behavior > David Zatopek KT5V wrote: > > > During SS this past weekend, I QSYed to a well-load 40 late Sunday and > > noticed an impressive and unusual level of S9 noise. The NB1 was on at the > > time of the QSY (HI THRU). The DSP denoiser and a tighting of filters > > helped, but the noise was pervasive and still S5. On whim, I turned off the > > noise blanker and voila...no more noise (well no more than usual for my > > neighborhood). Turned the blanker back on...noise level back up. No > > difference between NB1 and NB2 and Hi/Low thru settings > > > > I played with this some more with the same result. Continued with the > > remainder of the contest. Today, after turning the radio back on, I've not > > been able to duplicate the problem with any combination of NB or DSP setting > > tried so far. Only difference, 40 CW is almost empty of signals here in TX > > tonight. Any insights? > > The NB can produce spurious signals when there are loud signals on the band. In > the contest, there were so many loud signals that the usual symptom -- sort of a > brapp brapp that follows the keying of the strong signal was replaced with an > almost continuous noise. In order for a noise blanker to work it needs to pick > up signals over a wide bandwidth. Turning on the noise blanker has a very > severe effect on the receiver's dynamic range, which is why it's possible to > turn it off! > > -- > 73, > Vic, K2VCO > Fresno CA > http://www.qsl.net/k2vco > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > 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 |
Power lag after changing bands...
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I just noticed that after I change bands it takes about 6 dits to get full
output. Once it gets there it stays there..no big deal. After I change bands I hit a quick brrrp of dits and go on my way. Hitting a single dit each time: The first 3 dits show 0 watts, 4th dit 1 watt, 5th dit 4 watts, 6th dit 10W. Is this typical behavior? My Orion takes a dit or two after I change the power level before it reacts too. With the radio being here for only 2 weeks I'm still learning what is normal and what is broken. Thanks! Tom K2TA _______________________________________________ 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 |
Re: Power lag after changing bands...
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I asked this question after first looking through the K2 often-asked
questions and searching under Power Output etc and not seeing any coments related to it.... I just this minute stumbled across the answer listed under "Sluggish Transmit" which is a good description of the symptoms. So this is normal K2 behavior. <sigh of relief> Tom K2TA ----- Original Message ----- From: "Tom Althoff" <[hidden email]> To: <[hidden email]> Sent: Tuesday, November 09, 2004 3:36 AM Subject: [Elecraft] Power lag after changing bands... > I just noticed that after I change bands it takes about 6 dits to get full > output. Once it gets there it stays there..no big deal. After I change > bands I hit a quick brrrp of dits and go on my way. > > Hitting a single dit each time: The first 3 dits show 0 watts, 4th dit 1 > watt, 5th dit 4 watts, 6th dit 10W. > > Is this typical behavior? My Orion takes a dit or two after I change the > power level before it reacts too. > > With the radio being here for only 2 weeks I'm still learning what is > and what is broken. > > Thanks! > > Tom K2TA > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > 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 |
Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by Tom Althoff
While playing with the K2 during SS I took advantage of the Fast Play mode
and found it fantastic for repeats etc. I kept thinking...wow..if this had a button to press that would send a QSO # in CW and increment the number for the next keypress I could do a quick <hit but 1> <hit but 2> and have the full SS exchange sent. While I'm asking for the sky it would be great to have 2 buttons...one that sends the QSO # and then increments it and another that sends the previous QSO # for repeats. You would send the exchange using the "QSO # and increment it" button and if the other station asks for a repeat you hit the "previous QSO #" button. Like I say in the subject...this is a rediculous thing to ask Wayne and Eric to come up with since it is so limited an appeal but, man oh man, would a stand-alone K2 become nearly robotic in contests! I realize that most contesters key the rig using their computer logging software but I'm thinking about when I have the K2 up at the cabin with no computer around and just a paper and pencil for logging. Just dreaming in NY, Tom K2TA _______________________________________________ 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 Tom Althoff
If I am monitoring the CW portion of the 40 meter band and have my NB
switched on, I can always tell when someone aboard the USS Requin decides to do some QRP ops. I live atop Mt.Washington in Pittsburgh, PA, while the submarine is docked immediately below in the Ohio river at the Carnegie Science Center. I have worked Art NY3EC a few times, always joking that we could just as easily shout back and forth. I wonder if he would be up for semaphore... Mychael AA3WF K2#1025 _______________________________________________ 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 |
Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by Tom Althoff
For what its worth, this seems to be a pretty good idea to me. The only thing I would add to the feature would be to allow for a remote set of buttons which a user could build. Like and outside box so that the box could he close to the key paddle...or...have the buttons on the paddle so one does not have to move the hand so far to hit the buttons.
This is what we did before computer logging...with memory keyers...like in the 80s. Lee - K0WA _______________________________________________ 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 |
Re: Power lag after changing bands...
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In reply to this post by Tom Althoff
Hi Tom,
In CW mode, the K2's power output level is controlled in firmware. This allows us to preserve the rig's excellent keying waveform. It can take a few dits (or one dash, usually) to settle when you change bands. Most other rigs close the power-control loop using hardware. This can result in poor rise/fall characteristics and wide-band clicks at certain power levels. 73, Wayne N6KR --- 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 |
Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by Tom Althoff
I've added this to the wish-list, Tom.
73, Wayne N6KR On Nov 9, 2004, at 1:38 AM, Tom Althoff wrote: > While playing with the K2 during SS I took advantage of the Fast Play > mode > and found it fantastic for repeats etc. I kept thinking...wow..if > this had > a button to press that would send a QSO # in CW and increment the > number for > the next keypress I could do a quick <hit but 1> <hit but 2> and have > the > full SS exchange sent.... --- 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 |
Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by Tom Althoff
I second that thaught.
The IC-746 I once in the time owned had that feature. I would love this in the K2. What about a menuoption "cont on/off" That completly switch memorykeyer to contestmode and automatically switch to fastplay on any given numbers? That would be nice. After contest you go to secondary menu and choose cont off and the memorykeyer is back to ragchewing. Just a thaught. Tom LA1PHA ----- Original Message ----- From: "Tom Althoff" <[hidden email]> To: <[hidden email]> Sent: Tuesday, November 09, 2004 10:38 AM Subject: [Elecraft] Rediculous,unreasonable and selfish firmware feature request.. > While playing with the K2 during SS I took advantage of the Fast Play mode > and found it fantastic for repeats etc. I kept thinking...wow..if this > had > a button to press that would send a QSO # in CW and increment the number > for > the next keypress I could do a quick <hit but 1> <hit but 2> and have the > full SS exchange sent. > _______________________________________________ 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 Tom Althoff
Tom
I think that some of the more elaborate external keyers have something like this. You might check around. You might be able to get there that way. 73, Bob N6WG _______________________________________________ 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 |
Re: Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by wayne burdick
While you're at it, Wayne, would it be possible to extract the signal
strength in reports directly from the S-meter reading? All this 599 stuff in contests for every QSO does annoy me! 73 de David G4DMP In a recent message, wayne burdick <[hidden email]> said.... >I've added this to the wish-list, Tom. > >73, >Wayne >N6KR > >On Nov 9, 2004, at 1:38 AM, Tom Althoff wrote: > >> While playing with the K2 during SS I took advantage of the Fast Play >>mode >> and found it fantastic for repeats etc. I kept thinking...wow..if >>this had >> a button to press that would send a QSO # in CW and increment the >>number for >> the next keypress I could do a quick <hit but 1> <hit but 2> and have >>the >> full SS exchange sent.... 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 wayne burdick
In my opinion, it's not a good idea. The buttons on the K2 are too small and
not well located for this application. They are also not durable enough. It would only be useful for some contests (in the Sweepstakes, the exchange usually starts with the call of the station you are working), and is far better performed in the logging software. The feature would use valuable processor memory and who would use it? Not casual operators and DXers, and not serious contesters. I vote NO. 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco wayne burdick wrote: > I've added this to the wish-list, Tom. > > 73, > Wayne > N6KR > > On Nov 9, 2004, at 1:38 AM, Tom Althoff wrote: > >> While playing with the K2 during SS I took advantage of the Fast Play >> mode >> and found it fantastic for repeats etc. I kept thinking...wow..if >> this had >> a button to press that would send a QSO # in CW and increment the >> number for >> the next keypress I could do a quick <hit but 1> <hit but 2> and have the >> full SS exchange sent.... _______________________________________________ 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 |
Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by k0wa@swbell.net
This sounds an awfully lot like you are asking for the KRC2. In fact
with the right configuration, the KRC2 could easily do this, AND it already has four buttons to play with. No need to change the K2, just come up with a specific configuration request for the KRC2! On Nov 9, 2004, at 7:04 AM, Lee Buller wrote: > For what its worth, this seems to be a pretty good idea to me. The > only thing I would add to the feature would be to allow for a remote > set of buttons which a user could build. Like and outside box so that > the box could he close to the key paddle...or...have the buttons on > the paddle so one does not have to move the hand so far to hit the > buttons. > > This is what we did before computer logging...with memory > keyers...like in the 80s. > > Lee - K0WA -Jack Brindle, WA4FIB ======================================================================= _______________________________________________ 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 |
Re: Ridiculous, unreasonable and selfish firmware feature request..
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In reply to this post by wayne burdick
Thank you sir!
----- Original Message ----- From: "wayne burdick" <[hidden email]> To: "Tom Althoff" <[hidden email]> Cc: <[hidden email]> Sent: Tuesday, November 09, 2004 11:52 AM Subject: Re: Rediculous, unreasonable and selfish firmware feature request.. > I've added this to the wish-list, Tom. > > 73, > Wayne > N6KR > > On Nov 9, 2004, at 1:38 AM, Tom Althoff wrote: > > > While playing with the K2 during SS I took advantage of the Fast Play > > mode > > and found it fantastic for repeats etc. I kept thinking...wow..if > > this had > > a button to press that would send a QSO # in CW and increment the > > number for > > the next keypress I could do a quick <hit but 1> <hit but 2> and have > > the > > full SS exchange sent.... > > --- > > 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 |
RE: Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by David Pratt-3
I used to give out "real" S-reports during contests. Too often that confused
the other op who then asked for repeats. That slowed down the whole exchange. I finally defaulted to "599" even though the only contest contacts I made were entirely by hand key. It just didn't seem polite to confuse the other guy going for the big score... Ron AC7AC -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of David Pratt Sent: Tuesday, November 09, 2004 10:20 AM To: wayne burdick Cc: [hidden email] Subject: Re: [Elecraft] Re: Rediculous,unreasonable and selfish firmware feature request.. While you're at it, Wayne, would it be possible to extract the signal strength in reports directly from the S-meter reading? All this 599 stuff in contests for every QSO does annoy me! 73 de David G4DMP _______________________________________________ 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 |
RE: Re: Rediculous, unreasonable and selfish firmware feature request..
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And I thought that "599" was just an official part of the exchange. :)
On Tue, 9 Nov 2004, Ron D'Eau Claire wrote: > I used to give out "real" S-reports during contests. Too often that confused > the other op who then asked for repeats. That slowed down the whole > exchange. > > I finally defaulted to "599" even though the only contest contacts I made > were entirely by hand key. It just didn't seem polite to confuse the other > guy going for the big score... -- Hisashi T Fujinaka - [hidden email] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte _______________________________________________ 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 |
Re: Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by Ron D'Eau Claire-2
On Nov 9, 2004, at 2:36 PM, Ron D'Eau Claire wrote: > I used to give out "real" S-reports during contests. Too often that > confused > the other op who then asked for repeats. That slowed down the whole > exchange. > > I finally defaulted to "599" even though the only contest contacts I > made > were entirely by hand key. It just didn't seem polite to confuse the > other > guy going for the big score... I guess I really disagree with this, Ron. I kind'a think the guy who'd be confused by that doesn't deserve a big score. After all, it indicates he is not capable of doing what is being asked by the contest rules. So why should he do well in the contest? best wishes, dave belsley, w1euy _______________________________________________ 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 |
Re: Re: Rediculous, unreasonable and selfish firmware feature request..
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In reply to this post by David Pratt-3
Not to mention the "standard" 559 stuff in the QRP contests!
72 / 73 Hank K8DD At 11/9/2004 01:20 PM, David Pratt wrote: >While you're at it, Wayne, would it be possible to extract the signal >strength in reports directly from the S-meter reading? All this 599 stuff >in contests for every QSO does annoy me! > >73 de David G4DMP > >In a recent message, wayne burdick <[hidden email]> said.... >>I've added this to the wish-list, Tom. >> >>73, >>Wayne >>N6KR >> >>On Nov 9, 2004, at 1:38 AM, Tom Althoff wrote: >> >>>While playing with the K2 during SS I took advantage of the Fast Play mode >>>and found it fantastic for repeats etc. I kept thinking...wow..if this had >>>a button to press that would send a QSO # in CW and increment the number for >>>the next keypress I could do a quick <hit but 1> <hit but 2> and have the >>>full SS exchange sent.... >_______________________________________________ >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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