How can the KNB2 be tested?
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How can the KNB2 be tested?
 
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I have the KNB2 built and installed. I can turn it on/off, set the
theshold....everything. On 40m , with low threshold, I get "ghost"-signals. The manual recommends to spend an additional capacitor. OK. But what I expect - the blanking of noise - does not happen at all. As I have no Noise-source, I tried to switch workspace-lamps on and off. That gives me beautiful strong clicks in the receiver. Unfortunately I have the same strong clicks when the KNB2 is activated. Nothing is blanked. Is there a way to test the KNB2? Anything that can be measured? Do I need a different noise-source? 73 Karsten K2 #4764 _______________________________________________ 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: How can the KNB2 be tested?
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Hi Karsten,
My KNB2 worked w/o problems. Since the KNB2 blanks out continuous noise within certain timing limits you need to test with another source. To learn more about the KNB2, look here: http://www.qslnet.de/member/la3za/K2/modAny.html#KNB2 73 Gernot DF5RF PS: You can put me on the EU-Elecrafters list: K2 #2328. Karsten Eppert(DK4AS) wrote: > I have the KNB2 built and installed. I can turn it on/off, set the > theshold....everything. > On 40m , with low threshold, I get "ghost"-signals. The manual > recommends to spend an additional capacitor. OK. > But what I expect - the blanking of noise - does not happen at all. As I > have no Noise-source, I tried to switch workspace-lamps on and off. That > gives me beautiful strong clicks in the receiver. Unfortunately I have > the same strong clicks when the KNB2 is activated. Nothing is blanked. > > Is there a way to test the KNB2? Anything that can be measured? Do I > need a different noise-source? > 73 > Karsten > K2 #4764 > _______________________________________________ > 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 |
RE: How can the KNB2 be tested?
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In reply to this post by Karsten Eppert (DK4AS)
> -----Original Message-----
> > Is there a way to test the KNB2? Anything that can be > measured? Do I need a different noise-source? > A simple test that costs nothing in terms of test equipment is to scratch Q21 with a screwdriver, see http://www.ac6rm.net/mailarchive/html/elecraft-list/2003-10/msg00031.html for more details. 73 Sverre LA3ZA http://www.qslnet.de/la3za/ _______________________________________________ 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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Hello Folks,
This is probably a stupid question, and I guess I already know the answer, but is this for real? See GD907WS at http://www.mtech.whsites.net/ghd/ What could possibly make a key worth 1250 bucks? Tom, W3QS _______________________________________________ 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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unstated platinum?
Fred K6DGW Auburn CA CM98lw tom.w3qs wrote: > Hello Folks, > > This is probably a stupid question, and I guess I already know the answer, > but is this for real? > > See GD907WS at http://www.mtech.whsites.net/ghd/ > > What could possibly make a key worth 1250 bucks? > > Tom, W3QS > > > _______________________________________________ > 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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In reply to this post by tom.w3qs
Tom W3QS wrote:
This is probably a stupid question, and I guess I already know the answer, but is this for real? See GD907WS at http://www.mtech.whsites.net/ghd/ What could possibly make a key worth 1250 bucks? -------------------------- The GHD keys have an excellent reputation for workmanship. The expensive one you are looking at is not really a "bug". A bug is a semi-automatic key that makes dits while the operator makes the dahs side-swiper style. That big GHD key is an all mechanical fully-automatic keyer! (Sort of a Babbage machine for CW!) It makes both dits and dahs. The only thing it doesn't do is the automatic space between dahs and dits. In addition most of those keys, including the expensive one, have no mechanical contacts. They use optics to trigger a circuit closure, thereby avoiding the issue of keeping contacts clean. Is that all worth the money? Not to me, but it appears to be to a number of operators... It's also worth realizing that there's a growing amount of pure "humbug" out there in "Electronics Land". One company is featuring cryogenically-treated parts for tube-type amplifiers. Yes, they claim to super-cool tubes, capacitors and other parts and say that once the parts have experienced those very cold temperatures and returned to normal room temperature, any amplifier they are used in will have a 'sweeter, smoother sound'. Apparently they have takers. Old P.T. Barnum would be laughing his head off... Ron AC7AC _______________________________________________ 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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A philosopher once said "Stupid Is As Stupid Does."
I must be stupid because I just purchased one this morning!! 73s john-n3drk ----- Original Message ----- From: "Ron D'Eau Claire" <[hidden email]> To: <[hidden email]> Sent: Wednesday, December 21, 2005 8:30 PM Subject: RE: [Elecraft] CW Keys Tom W3QS wrote: This is probably a stupid question, and I guess I already know the answer, but is this for real? See GD907WS at http://www.mtech.whsites.net/ghd/ What could possibly make a key worth 1250 bucks? -------------------------- The GHD keys have an excellent reputation for workmanship. The expensive one you are looking at is not really a "bug". A bug is a semi-automatic key that makes dits while the operator makes the dahs side-swiper style. That big GHD key is an all mechanical fully-automatic keyer! (Sort of a Babbage machine for CW!) It makes both dits and dahs. The only thing it doesn't do is the automatic space between dahs and dits. In addition most of those keys, including the expensive one, have no mechanical contacts. They use optics to trigger a circuit closure, thereby avoiding the issue of keeping contacts clean. Is that all worth the money? Not to me, but it appears to be to a number of operators... It's also worth realizing that there's a growing amount of pure "humbug" out there in "Electronics Land". One company is featuring cryogenically-treated parts for tube-type amplifiers. Yes, they claim to super-cool tubes, capacitors and other parts and say that once the parts have experienced those very cold temperatures and returned to normal room temperature, any amplifier they are used in will have a 'sweeter, smoother sound'. Apparently they have takers. Old P.T. Barnum would be laughing his head off... Ron AC7AC _______________________________________________ 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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In reply to this post by Ron D'Eau Claire-2
I did not purchase the 1200 buckaroo. I purchased the
507 mechanical, not the optical. This particular model is about 1000 bucks cheaper! 73s john-n3drk ----- Original Message ----- From: "Ron D'Eau Claire" <[hidden email]> To: <[hidden email]> Sent: Wednesday, December 21, 2005 8:30 PM Subject: RE: [Elecraft] CW Keys Tom W3QS wrote: This is probably a stupid question, and I guess I already know the answer, but is this for real? See GD907WS at http://www.mtech.whsites.net/ghd/ What could possibly make a key worth 1250 bucks? -------------------------- The GHD keys have an excellent reputation for workmanship. The expensive one you are looking at is not really a "bug". A bug is a semi-automatic key that makes dits while the operator makes the dahs side-swiper style. That big GHD key is an all mechanical fully-automatic keyer! (Sort of a Babbage machine for CW!) It makes both dits and dahs. The only thing it doesn't do is the automatic space between dahs and dits. In addition most of those keys, including the expensive one, have no mechanical contacts. They use optics to trigger a circuit closure, thereby avoiding the issue of keeping contacts clean. Is that all worth the money? Not to me, but it appears to be to a number of operators... It's also worth realizing that there's a growing amount of pure "humbug" out there in "Electronics Land". One company is featuring cryogenically-treated parts for tube-type amplifiers. Yes, they claim to super-cool tubes, capacitors and other parts and say that once the parts have experienced those very cold temperatures and returned to normal room temperature, any amplifier they are used in will have a 'sweeter, smoother sound'. Apparently they have takers. Old P.T. Barnum would be laughing his head off... Ron AC7AC _______________________________________________ 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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In reply to this post by n3drk
I know another Elecraft owner who has one of the GHD standard bugs and he's
very happy with it. Indeed, he finds it so smooth that other bugs feel crude to his fist. Like I said before, GHD has a very good reputation. Forrest Gump teaches us that a supposedly "dim bulb" actually may be very bright on a different wavelength. Ron AC7AC -----Original Message----- From: n3drk [mailto:[hidden email]] Sent: Wednesday, December 21, 2005 5:39 PM To: Ron D'Eau Claire; [hidden email] Subject: Re: [Elecraft] CW Keys A philosopher once said "Stupid Is As Stupid Does." I must be stupid because I just purchased one this morning!! 73s john-n3drk _______________________________________________ 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.w3qs
Only one thing. Someone willing to buy it.
That would not be me. Eric KE6US www.ke6us.com -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of tom.w3qs Sent: Wednesday, December 21, 2005 4:13 PM To: [hidden email] Subject: [Elecraft] CW Keys Hello Folks, This is probably a stupid question, and I guess I already know the answer, but is this for real? See GD907WS at http://www.mtech.whsites.net/ghd/ What could possibly make a key worth 1250 bucks? Tom, W3QS _______________________________________________ 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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In reply to this post by n3drk
Hey John,
I never meant to imply that someone would have to be stupid to buy one, I just didn't know if they were for real or not. In the end, they may only send dits and dahs, but then a good Cuban cigar is just a smoke, and I certainly can appreciate the difference between a working horse and an Arabian. The photos look elegant, but digital photography and the internet has taught me to be very skeptical, and in nearly 50 years of hamming, I've never crossed paths with these guys. Congratulations on your purchase. Tom -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of n3drk Sent: Wednesday, December 21, 2005 8:39 PM To: Ron D'Eau Claire; [hidden email] Subject: Re: [Elecraft] CW Keys A philosopher once said "Stupid Is As Stupid Does." I must be stupid because I just purchased one this morning!! 73s john-n3drk ----- Original Message ----- From: "Ron D'Eau Claire" <[hidden email]> To: <[hidden email]> Sent: Wednesday, December 21, 2005 8:30 PM Subject: RE: [Elecraft] CW Keys Tom W3QS wrote: This is probably a stupid question, and I guess I already know the answer, but is this for real? See GD907WS at http://www.mtech.whsites.net/ghd/ What could possibly make a key worth 1250 bucks? -------------------------- The GHD keys have an excellent reputation for workmanship. The expensive one you are looking at is not really a "bug". A bug is a semi-automatic key that makes dits while the operator makes the dahs side-swiper style. That big GHD key is an all mechanical fully-automatic keyer! (Sort of a Babbage machine for CW!) It makes both dits and dahs. The only thing it doesn't do is the automatic space between dahs and dits. In addition most of those keys, including the expensive one, have no mechanical contacts. They use optics to trigger a circuit closure, thereby avoiding the issue of keeping contacts clean. Is that all worth the money? Not to me, but it appears to be to a number of operators... It's also worth realizing that there's a growing amount of pure "humbug" out there in "Electronics Land". One company is featuring cryogenically-treated parts for tube-type amplifiers. Yes, they claim to super-cool tubes, capacitors and other parts and say that once the parts have experienced those very cold temperatures and returned to normal room temperature, any amplifier they are used in will have a 'sweeter, smoother sound'. Apparently they have takers. Old P.T. Barnum would be laughing his head off... Ron AC7AC _______________________________________________ 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 _______________________________________________ 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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