Re: [Elecraft] K3 issue
Dick, Sorry to hear you are having issues, and I know this does not fix your current issue, but as an aside, I always do a save of system config just before any critical operations like contests, etc. Makes the recovery a lot simpler, if needed. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources On 11/19/21 16:52, Dick Frey wrote: My k3 keeps losing its mind. One day it won't transmit SSB - I can whistle up 100W but speech gives 5W of avg and ~15W peak. On another day it says "KAT500 not turned ON". I have a KPA500 but no KAT500. My fix for both these has been to do a factory reset and reload my last saved configuration -- not something you want to do in the middle of a contest. Any ideas on what might be causing its lapse into insanity? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 issue
Does it have gold pins on the front panel connectors? If not, all kinds of strange problems can arise. Dave Hachadorian, K6LL Yuma, AZ On 11/19/2021 5:52 PM, Dick Frey wrote: My k3 keeps losing its mind. One day it won't transmit SSB - I can whistle up 100W but speech gives 5W of avg and ~15W peak. On another day it says "KAT500 not turned ON". I have a KPA500 but no KAT500. My fix for both these has been to do a factory reset and reload my last saved configuration -- not something you want to do in the middle of a contest. Any ideas on what might be causing its lapse into insanity? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 issue
My k3 keeps losing its mind. One day it won't transmit SSB - I can whistle up 100W but speech gives 5W of avg and ~15W peak. On another day it says "KAT500 not turned ON". I have a KPA500 but no KAT500. My fix for both these has been to do a factory reset and reload my last saved configuration -- not something you want to do in the middle of a contest. Any ideas on what might be causing its lapse into insanity? -- Dick - K4XU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
No sweat Bill. Sh*t happens. :-D 73, Alan. G4GNX -- Original Message -- From: "Bill Coleman" To: "Alan - G4GNX" Cc: "Elecraft" Sent: 14/10/2020 18:55:01 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m In this case, it wasn’t RG-213, but RG-303. The author regrets the error. On Oct 14, 2020, at 1:45 PM, Alan - G4GNX wrote: Not wishing to pick a fight, but he said that he is using a balun rated at 1KW. What you describe is a common mode choke and as I'm sure you know, that is not a transformer which is what I described. I can see Jim's frustration. Folks really need to get to grips and properly understand the terms they are using, otherwise we get into meaningless arguments and false advice. RG213 is a commonly used co-axial cable: https://www.awcwire.com/productspec.aspx?id=rg213-coaxial-cable 73, Alan. G4GNX -- Original Message -- From: j...@kk9a.com To: elecraft@mailman.qth.net Sent: 14/10/2020 18:17:00 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m AA4LR is using #43 ferrite beads on RG-313 coax. I am not sure what RG-313 is however there should be no ohm meter short unless he is using a hairpin match. Perhaps there is a flaky connection somewhere in his system. I had a lot of RF feedback problems with my K3S when using a corroded station in the Caribbean but no current warnings. John KK9A Alan - G4GNX wrote: I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. I must admit I put off replacing my antenna until I was forced to. Might be the way to go. :-) 73, Alan. G4GNX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to g4...@g4gnx.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Sorry to pick you up on this Bill, but you've been rather misleading on your description. A current choke (common mode choke) is not even 1:1 as in a transformer, there is no ratio, primary to secondary. You rightly say that you're using a CHOKE which is NOT a balun "balanced to unbalanced transformer". In the light of that, I apologise. My information regarding a balun is useless to you. Sorry to have wasted your time. BTW I also don't understand where the 1KW rating came from. 73, Alan. G4GNX -- Original Message -- From: "Bill Coleman" To: "Alan - G4GNX" Cc: "Elecraft" Sent: 14/10/2020 18:45:11 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m It’s a current (choke) 1:1 balun. Ferrite beads over coax. There are no turns, there is no primary. On Oct 14, 2020, at 9:19 AM, Alan - G4GNX wrote: I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. I must admit I put off replacing my antenna until I was forced to. Might be the way to go. :-) 73, Alan. G4GNX -- Original Message -- From: "Bill Coleman" To: "Alan - G4GNX" Cc: "Elecraft" Sent: 14/10/2020 13:39:06 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m I was not seeing any SWR shifts on this antenna. A check with an ohmmeter shows no shorts. This antenna is currently on the ground due to other work on the tower. I’m considering replacing the antenna entirely. It’s been up over 10 years, and the traps could use re-work. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
In this case, it wasn’t RG-213, but RG-303. The author regrets the error. > On Oct 14, 2020, at 1:45 PM, Alan - G4GNX wrote: > > Not wishing to pick a fight, but he said that he is using a balun rated at > 1KW. > > What you describe is a common mode choke and as I'm sure you know, that is > not a transformer which is what I described. > > I can see Jim's frustration. Folks really need to get to grips and properly > understand the terms they are using, otherwise we get into meaningless > arguments and false advice. > > RG213 is a commonly used co-axial cable: > https://www.awcwire.com/productspec.aspx?id=rg213-coaxial-cable > > 73, > > Alan. G4GNX > > > -- Original Message -- > From: j...@kk9a.com > To: elecraft@mailman.qth.net > Sent: 14/10/2020 18:17:00 > Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m > >> AA4LR is using #43 ferrite beads on RG-313 coax. I am not sure what RG-313 >> is however there should be no ohm meter short unless he is using a hairpin >> match. Perhaps there is a flaky connection somewhere in his system. I had >> a lot of RF feedback problems with my K3S when using a corroded station in >> the Caribbean but no current warnings. >> >> John KK9A >> >> >> >> Alan - G4GNX wrote: >> >> >> I presume that you disconnected the feeder from the balun when you did >> the DC Ohms test? If not, there is something wrong because you should >> see almost a dead (DC) short through the primary of the balun. >> >> I must admit I put off replacing my antenna until I was forced to. Might >> be the way to go. :-) >> >> 73, >> >> Alan. G4GNX >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to g4...@g4gnx.com > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
I’ve had other problems with this antenna when the 17m traps broke down about three years ago. Looking back at my station notes, I’m wrong. It wasn’t RG-313, it was RG-303. Sorry for the error. This is a small diameter (0.170”) coax with a solid teflon dielectric. > On Oct 14, 2020, at 1:17 PM, j...@kk9a.com wrote: > > AA4LR is using #43 ferrite beads on RG-313 coax. I am not sure what RG-313 is > however there should be no ohm meter short unless he is using a hairpin > match. Perhaps there is a flaky connection somewhere in his system. I had a > lot of RF feedback problems with my K3S when using a corroded station in the > Caribbean but no current warnings. > > John KK9A > > > > Alan - G4GNX wrote: > > > I presume that you disconnected the feeder from the balun when you did > the DC Ohms test? If not, there is something wrong because you should > see almost a dead (DC) short through the primary of the balun. > > I must admit I put off replacing my antenna until I was forced to. Might > be the way to go. :-) > > 73, > > Alan. G4GNX > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
“Balun” is also misleading because “balanced” transmission line is a misleading idea. Whether the transmission line is coax or two-wire, it can carry both differential mode and common mode currents. I prefer the words “choke” and “transformer”. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 14, 2020, at 10:14 AM, Alan - G4GNX wrote: > > Jim. I agree about the MISS-use of the word balun. As the word is actually > supposed to represent a balanced to unbalanced TRANSFORMER, I have used it in > its correct sense. > > If I had meant common mode choke, I would have said so. > > If the OP is not using a balun in the true sense of the word, then he should > say so. > > Sorry, but I can't be held responsible for others' misuse of the terms. > > I don't see why the word "balun" should be eliminated. That's like saying the > word "resistor" should be eliminated because I actually mean to describe a > capacitor, but can't be bothered to learn the correct terminology. :-) > > 73, > > Alan. G4GNX > > -- Original Message ------ > From: "Jim Brown" > To: elecraft@mailman.qth.net > Sent: 14/10/2020 17:57:31 > Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m > >> On 10/14/2020 6:19 AM, Alan - G4GNX wrote: >>> I presume that you disconnected the feeder from the balun when you did the >>> DC Ohms test? If not, there is something wrong because you should see >>> almost a dead (DC) short through the primary of the balun. >> >> Here's an example of where the word "balun" blows up our thinking about >> problem solving. The "balun" you're describing is a transformer, sometimes >> called a voltage balun. Other things commonly called a "balun" are a common >> mode choke, which should look like an open circuit at both DC and RF. >> >> The word "balun" should be eliminated from our use. I know of at least ten >> very different things that are called a "balun." >> >> 73, Jim K9YC >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wun...@wunderwood.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Isn’t the name apt, though? A feedpoint choke like this does manage the interface from the unbalanced coax to the balanced antenna by inhibiting the flow of common-mode currents. Hence, Bal-Un. Agree that the term is insufficiently descriptive. > On Oct 14, 2020, at 12:57 PM, Jim Brown wrote: > > On 10/14/2020 6:19 AM, Alan - G4GNX wrote: >> I presume that you disconnected the feeder from the balun when you did the >> DC Ohms test? If not, there is something wrong because you should see almost >> a dead (DC) short through the primary of the balun. > > Here's an example of where the word "balun" blows up our thinking about > problem solving. The "balun" you're describing is a transformer, sometimes > called a voltage balun. Other things commonly called a "balun" are a common > mode choke, which should look like an open circuit at both DC and RF. > > The word "balun" should be eliminated from our use. I know of at least ten > very different things that are called a "balun." > > 73, Jim K9YC > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Not wishing to pick a fight, but he said that he is using a balun rated at 1KW. What you describe is a common mode choke and as I'm sure you know, that is not a transformer which is what I described. I can see Jim's frustration. Folks really need to get to grips and properly understand the terms they are using, otherwise we get into meaningless arguments and false advice. RG213 is a commonly used co-axial cable: https://www.awcwire.com/productspec.aspx?id=rg213-coaxial-cable 73, Alan. G4GNX -- Original Message -- From: j...@kk9a.com To: elecraft@mailman.qth.net Sent: 14/10/2020 18:17:00 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m AA4LR is using #43 ferrite beads on RG-313 coax. I am not sure what RG-313 is however there should be no ohm meter short unless he is using a hairpin match. Perhaps there is a flaky connection somewhere in his system. I had a lot of RF feedback problems with my K3S when using a corroded station in the Caribbean but no current warnings. John KK9A Alan - G4GNX wrote: I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. I must admit I put off replacing my antenna until I was forced to. Might be the way to go. :-) 73, Alan. G4GNX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to g4...@g4gnx.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
It’s a current (choke) 1:1 balun. Ferrite beads over coax. There are no turns, there is no primary. > On Oct 14, 2020, at 9:19 AM, Alan - G4GNX wrote: > > I presume that you disconnected the feeder from the balun when you did the DC > Ohms test? If not, there is something wrong because you should see almost a > dead (DC) short through the primary of the balun. > > I must admit I put off replacing my antenna until I was forced to. Might be > the way to go. :-) > > 73, > > Alan. G4GNX > > > -- Original Message -- > From: "Bill Coleman" > To: "Alan - G4GNX" > Cc: "Elecraft" > Sent: 14/10/2020 13:39:06 > Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m > >> I was not seeing any SWR shifts on this antenna. A check with an ohmmeter >> shows no shorts. >> This antenna is currently on the ground due to other work on the tower. I’m >> considering replacing the antenna entirely. It’s been up over 10 years, and >> the traps could use re-work. >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
AA4LR is using #43 ferrite beads on RG-313 coax. I am not sure what RG-313 is however there should be no ohm meter short unless he is using a hairpin match. Perhaps there is a flaky connection somewhere in his system. I had a lot of RF feedback problems with my K3S when using a corroded station in the Caribbean but no current warnings. John KK9A Alan - G4GNX wrote: I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. I must admit I put off replacing my antenna until I was forced to. Might be the way to go. :-) 73, Alan. G4GNX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Jim. I agree about the MISS-use of the word balun. As the word is actually supposed to represent a balanced to unbalanced TRANSFORMER, I have used it in its correct sense. If I had meant common mode choke, I would have said so. If the OP is not using a balun in the true sense of the word, then he should say so. Sorry, but I can't be held responsible for others' misuse of the terms. I don't see why the word "balun" should be eliminated. That's like saying the word "resistor" should be eliminated because I actually mean to describe a capacitor, but can't be bothered to learn the correct terminology. :-) 73, Alan. G4GNX -- Original Message -- From: "Jim Brown" To: elecraft@mailman.qth.net Sent: 14/10/2020 17:57:31 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m On 10/14/2020 6:19 AM, Alan - G4GNX wrote: I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. Here's an example of where the word "balun" blows up our thinking about problem solving. The "balun" you're describing is a transformer, sometimes called a voltage balun. Other things commonly called a "balun" are a common mode choke, which should look like an open circuit at both DC and RF. The word "balun" should be eliminated from our use. I know of at least ten very different things that are called a "balun." 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
On 10/14/2020 6:19 AM, Alan - G4GNX wrote: I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. Here's an example of where the word "balun" blows up our thinking about problem solving. The "balun" you're describing is a transformer, sometimes called a voltage balun. Other things commonly called a "balun" are a common mode choke, which should look like an open circuit at both DC and RF. The word "balun" should be eliminated from our use. I know of at least ten very different things that are called a "balun." 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun. I must admit I put off replacing my antenna until I was forced to. Might be the way to go. :-) 73, Alan. G4GNX -- Original Message -- From: "Bill Coleman" To: "Alan - G4GNX" Cc: "Elecraft" Sent: 14/10/2020 13:39:06 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m I was not seeing any SWR shifts on this antenna. A check with an ohmmeter shows no shorts. This antenna is currently on the ground due to other work on the tower. I’m considering replacing the antenna entirely. It’s been up over 10 years, and the traps could use re-work. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
I was not seeing any SWR shifts on this antenna. A check with an ohmmeter shows no shorts. This antenna is currently on the ground due to other work on the tower. I’m considering replacing the antenna entirely. It’s been up over 10 years, and the traps could use re-work. > On Oct 13, 2020, at 10:47 AM, Alan - G4GNX wrote: > > This happened to me on a multi-band antenna, with SWR changing, but no Hi Cur > warning. > > I would be transmitting for months, using only 100W with no issues. I added > in a KPA500/KAT500 combination and apart from a short test at 400W, I > continued to use it at 200W (SSB) max. > After a month or so, the SWR would change - mid QSO. A quick retune and I was > able to continue. Over a few weeks the occurrence was more frequent. Using a > Rig Expert analyser, no fault or bad SWR was indicated and I (wrongly) > guessed that the 400W Guanella balun was breaking down at power over 100W. In > the meantime I ordered a new 1KW balun made for that antenna, but before it > arrived, during a QSO there was a catastrophic "occurrence" with all kinds of > warnings and the SWR was off the scale. > > A check with a multimeter indicated a dead short somewhere in the feedline > (RG58). I also took the balun apart and found no fault. As I'd ordered a new > balun, I decided to change it anyway. I don't have the power to exceed the > new balun's spec, so it should last forever - RF wise. ;-) > > Obviously I replaced the co-ax feeder - I now use Westflex 103 with much > larger ferrites (to fit the new cable size) as a common mode choke. All now > works as it should and shows no sign of breakdown, even at 400W (max legal > for the UK). > > The old co-ax is a different matter. With both ends disconnected (open) > connecting one end to the analyser showed a short circuit about 15 feet along > its length. I cut out a section either side and the remaining two pieces > showed 'open' as they should. On visual inspection I find that the braid of > the co-ax has migrated through the center insulation and is touching the > inner conductor, indicating that a fair amount of heat has been generated. > The area in question was right where the common mode ferrites had been > fitted, although there were no tell-tale marks on the ferrites or the outer > casing of the co-ax. It's fairly obvious that a high voltage node has caused > an internal flashover which in turn has changed the characteristic which has > resulted in a high current node which has generated the heat. > > You may well be right that your balun is not faulty, but you should check it > anyway as well as checking out all the other aspects of the installation. If > you can, replace the feeder. You may be surprised at what you find. > > 73, > > Alan. G4GNX > > > -- Original Message -- > From: "Bill Coleman" > To: "Don Wilhelm" > Cc: "Elecraft" > Sent: 13/10/2020 01:55:16 > Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m > >> SWR on the problem antenna is below 1.2:1. It’s a trap dipole - designed for >> that band. >> >> It is unlikely the balun is “breaking down”. It’s a current balun - #43 >> ferrite beads on RG-313 coax. It can easily handle a kW or more. >> >>> On Oct 12, 2020, at 2:12 AM, Don Wilhelm wrote: >>> >>> Bill, >>> >>> I would suggest that you check the SWR on the antenna before concluding it >>> is an RF feedback problem. >>> Don't forget that the balun may be breaking down with power and show no >>> problem at lower power (like from an antenna analyzer). >>> >>> Don W3FPR >>> >>> On 10/11/2020 8:53 PM, Bill Coleman wrote: >>>> Don, >>>> >>>> I finally got around to running my K3 into a dummy load. >>>> >>>> I had no problem running 100w or even 110w with a dummy load. Current draw >>>> from the power supply was 22 A and 23 A, respectively, on the K3 display. >>>> No HI CUR indications. >>>> >>>> External wattmeter validates the output. >>>> >>>> I was getting the HI CUR indication on a trap 30/17/12m inverted V. I had >>>> to take it down, and now I’m using a trap 80/40/20m dipole through the >>>> tuner. No HI CUR indication on that antenna, either. >>>> >>>> Even though I have current baluns on both antennas, I’m thinking that my >>>> HI CUR problem may be related to RF feedback in the shack. >>>> >>>> Do you concur? >>>> >>>> I’m in the process of
Re: [Elecraft] [K3] Issue with HI CUR on 12m
While it may not be a “perfect” material, it was what I had on hand, and I measured over 800 ohms choking impedance on the band of interest. It’s definitely doing something useful. I have your cookbook, and will use it for future projects. > On Oct 12, 2020, at 10:05 PM, Jim Brown wrote: > > On 10/12/2020 5:55 PM, Bill Coleman wrote: >> It is unlikely the balun is “breaking down”. It’s a current balun - #43 >> ferrite beads on RG-313 coax. It can easily handle a kW or more. > That's a common mode choke, and #43 is a terrible material for the HF bands. > See my "cookbook" at k9yc.com/publish.htm as well as the Ham's RFI tutorial, > which explains things conceptually. > > "handle a kW," perhaps, but only because it's also unlikely to be doing > anything useful. :) > > 73, Jim K9YC > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to aa...@arrl.net Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Hi Jim, The SimSmith model includes Fair-Rite complex permeability files, which is the basis of the Ferrite model. John KN5L On 10/13/20 2:23 PM, Jim Brown wrote: > On 10/13/2020 11:41 AM, John Oppenheimer wrote: >> Jim, can you be more specific with flaws within the SimSmith model? > > John, I suggest that you study my email and the references I cited. Also > study the early pages in the Fair-Rite catalog, one devoted to each > material, showing plots of mu' and mu'' vs frequency. > > 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
On 10/13/2020 11:41 AM, John Oppenheimer wrote: Jim, can you be more specific with flaws within the SimSmith model? John, I suggest that you study my email and the references I cited. Also study the early pages in the Fair-Rite catalog, one devoted to each material, showing plots of mu' and mu'' vs frequency. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Jim, can you be more specific with flaws within the SimSmith model? I've updated https://www.kn5l.net/Balun-CM/Balun31-43/ with Balun CMRR window image. So that others don't need to load SimSmith and model from the ZIP file link. John KN5L On 10/13/20 12:45 PM, Jim Brown wrote: > you clearly don't understand how > ferrite common mode chokes work. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
On 10/13/2020 8:12 AM, John Oppenheimer wrote: Hi Jim, For high power Balun Applications, most critical parameter is Ferrite core loss which causes core heating. Core loss, parallel resistance (Rp), can be computed from complex permeability data from Fair-Rite. Hi John, While I respect your engineering chops, you clearly don't understand how ferrite common mode chokes work. They DEPEND on the loss component coupled from the ferrite core, which has a broad peak around resonance of the winding. Fair-Rite's #31 material is MnZn, which exhibits two resonances. One is formed by the inductance of the winding and the capacitance between turns; the second is a dimensional resonance that results from standing waves within the core. #43 material is NiZn; these materials do NOT exhibit dimensional resonance, because loss is low at the frequencies where it would occur. At HF, the two resonances in multi-turn chokes on #31 cores combine to provide a much broader resonance, comparable to what happened in stagger-tuned IFs. This has two implications. First, the broader resonance allows the choke to cover more bands. Second, and more important, ferrite cores have wide manufacturing tolerances that cause the resonances to shift in frequency. The broader impedance curve formed by chokes on #31 material allows a designer to specify chokes that will work within a specified frequency range with that tolerance variation; it is NOT possible with the much narrower impedance curve of chokes wound on #43 or #52 material. My "choke cookbook" is the result of first characterizing nearly 200 #31 cores of a given size, selecting cores at the tolerance limits for each size, winding and measuring more than a thousand chokes on these "limits" cores. The cookbook is based on chokes working with all of those "limits" cores. After seeing recommendations from a ham in the UK for #52 material, I bought 40 of these cores over a period of about four weeks, splitting the order between four franchised vendors (that is, ten from each vendor). I characterized those cores, selected cores at limits, and wound chokes using that ham's recommendations. I could not reproduce his results -- the tolerance variation moved their resonance away from their intended operating range. I learned about dimensional resonance from a classic engineering book on ferrite applications by E. C. Snelling that a colleague found for me in the engineering library of the U of Chicago, where he was on faculty. Snelling's work is considered "the bible" by engineers working in mfg and application of ferrites. It's reference 7 in the AES paper, and is also referenced in the tutorial. These concepts are discussed in detail in an AES paper from 2005 and in a tutorial I wrote for hams in 2007, the latter updated several times over the years. http://k9yc.com/AESPaperFerritesASGWeb.pdf http://k9yc.com/RFI-Ham.pdf The "cookbook" is here. http://k9yc.com/2018Cookbook.pdf 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Hi Jim, For high power Balun Applications, most critical parameter is Ferrite core loss which causes core heating. Core loss, parallel resistance (Rp), can be computed from complex permeability data from Fair-Rite. https://www.kn5l.net/Balun-CM/Balun31-43/ Models FT240 10T with 31 and 43 materials. G.Zo is selected to indicate maximum possible core dissipation watts. Maximum core dissipation accrues when ground to antenna external conductor electrical length = 1/2 wavelength multiples. 1/2 wavelength multiples reflects ground impedance to the Balun. As shown, at 1.8MHz, maximum core dissipation for 1kW key down could be 4W for 31 material and 3.6W for #43 material. Probably not enough difference to worry about. The two CMRR traces, red and yellow, are below about -20dB. Difference in choking ability is insignificant in this range. The model includes a parallel capacitor for self resonance. Though is not critical, as reactance does not result in heating. Core loss, Rp, causes core heat rise. All in all, not much difference between 43 and 31 for these two Baluns. John KN5L On 10/12/20 9:05 PM, Jim Brown wrote: > #43 is a terrible material for the HF > bands. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
This happened to me on a multi-band antenna, with SWR changing, but no Hi Cur warning. I would be transmitting for months, using only 100W with no issues. I added in a KPA500/KAT500 combination and apart from a short test at 400W, I continued to use it at 200W (SSB) max. After a month or so, the SWR would change - mid QSO. A quick retune and I was able to continue. Over a few weeks the occurrence was more frequent. Using a Rig Expert analyser, no fault or bad SWR was indicated and I (wrongly) guessed that the 400W Guanella balun was breaking down at power over 100W. In the meantime I ordered a new 1KW balun made for that antenna, but before it arrived, during a QSO there was a catastrophic "occurrence" with all kinds of warnings and the SWR was off the scale. A check with a multimeter indicated a dead short somewhere in the feedline (RG58). I also took the balun apart and found no fault. As I'd ordered a new balun, I decided to change it anyway. I don't have the power to exceed the new balun's spec, so it should last forever - RF wise. ;-) Obviously I replaced the co-ax feeder - I now use Westflex 103 with much larger ferrites (to fit the new cable size) as a common mode choke. All now works as it should and shows no sign of breakdown, even at 400W (max legal for the UK). The old co-ax is a different matter. With both ends disconnected (open) connecting one end to the analyser showed a short circuit about 15 feet along its length. I cut out a section either side and the remaining two pieces showed 'open' as they should. On visual inspection I find that the braid of the co-ax has migrated through the center insulation and is touching the inner conductor, indicating that a fair amount of heat has been generated. The area in question was right where the common mode ferrites had been fitted, although there were no tell-tale marks on the ferrites or the outer casing of the co-ax. It's fairly obvious that a high voltage node has caused an internal flashover which in turn has changed the characteristic which has resulted in a high current node which has generated the heat. You may well be right that your balun is not faulty, but you should check it anyway as well as checking out all the other aspects of the installation. If you can, replace the feeder. You may be surprised at what you find. 73, Alan. G4GNX -- Original Message -- From: "Bill Coleman" To: "Don Wilhelm" Cc: "Elecraft" Sent: 13/10/2020 01:55:16 Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m SWR on the problem antenna is below 1.2:1. It’s a trap dipole - designed for that band. It is unlikely the balun is “breaking down”. It’s a current balun - #43 ferrite beads on RG-313 coax. It can easily handle a kW or more. On Oct 12, 2020, at 2:12 AM, Don Wilhelm wrote: Bill, I would suggest that you check the SWR on the antenna before concluding it is an RF feedback problem. Don't forget that the balun may be breaking down with power and show no problem at lower power (like from an antenna analyzer). Don W3FPR On 10/11/2020 8:53 PM, Bill Coleman wrote: Don, I finally got around to running my K3 into a dummy load. I had no problem running 100w or even 110w with a dummy load. Current draw from the power supply was 22 A and 23 A, respectively, on the K3 display. No HI CUR indications. External wattmeter validates the output. I was getting the HI CUR indication on a trap 30/17/12m inverted V. I had to take it down, and now I’m using a trap 80/40/20m dipole through the tuner. No HI CUR indication on that antenna, either. Even though I have current baluns on both antennas, I’m thinking that my HI CUR problem may be related to RF feedback in the shack. Do you concur? I’m in the process of a number of shack improvements, including antenna replacements and grounding and bonding, so that might take care of it. On Jan 11, 2020, at 11:29 AM, Don Wilhelm wrote: Bill, Is this into a dummy load (bypass the ATU or tune the ATU into the dummy load). If it is into an antenna, there are a whole lot of guesses about how the antenna behaves with higher power levels than your antenna analyzer shows. So check it with a dummy load to eliminate the possibility that the problem is in the antenna. Put an external wattmeter in line with the dummy load to eliminate questions about the calibration on the K3 wattmeter. If you can measure the actual current drawn, that would also be helpful. 73, Don W3FPR On 1/11/2020 11:18 AM, Bill Coleman wrote: Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. I don’t remember seeing this before. After the K
Re: [Elecraft] [K3] Issue with HI CUR on 12m
On 10/12/2020 5:55 PM, Bill Coleman wrote: It is unlikely the balun is “breaking down”. It’s a current balun - #43 ferrite beads on RG-313 coax. It can easily handle a kW or more. That's a common mode choke, and #43 is a terrible material for the HF bands. See my "cookbook" at k9yc.com/publish.htm as well as the Ham's RFI tutorial, which explains things conceptually. "handle a kW," perhaps, but only because it's also unlikely to be doing anything useful. :) 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
But remember, there are two basic loading conditions that will give a SWR of 1.2:1 ... 60R+J0 will give 1.2:1 and pull a current lower than a perfect match ... 42R+J0 will give 1.2:1 and pull a current greater than a perfect match ... (and of course all the reactive permutations around the load circle) ... On Tue, 13 Oct 2020 at 01:56, Bill Coleman wrote: > SWR on the problem antenna is below 1.2:1. It’s a trap dipole - designed > for that band. > > It is unlikely the balun is “breaking down”. It’s a current balun - #43 > ferrite beads on RG-313 coax. It can easily handle a kW or more. > > > On Oct 12, 2020, at 2:12 AM, Don Wilhelm wrote: > > > > Bill, > > > > I would suggest that you check the SWR on the antenna before concluding > it is an RF feedback problem. > > Don't forget that the balun may be breaking down with power and show no > problem at lower power (like from an antenna analyzer). > > > > Don W3FPR > > > > On 10/11/2020 8:53 PM, Bill Coleman wrote: > >> Don, > >> > >> I finally got around to running my K3 into a dummy load. > >> > >> I had no problem running 100w or even 110w with a dummy load. Current > draw from the power supply was 22 A and 23 A, respectively, on the K3 > display. No HI CUR indications. > >> > >> External wattmeter validates the output. > >> > >> I was getting the HI CUR indication on a trap 30/17/12m inverted V. I > had to take it down, and now I’m using a trap 80/40/20m dipole through the > tuner. No HI CUR indication on that antenna, either. > >> > >> Even though I have current baluns on both antennas, I’m thinking that > my HI CUR problem may be related to RF feedback in the shack. > >> > >> Do you concur? > >> > >> I’m in the process of a number of shack improvements, including antenna > replacements and grounding and bonding, so that might take care of it. > >> > >>> On Jan 11, 2020, at 11:29 AM, Don Wilhelm > wrote: > >>> > >>> Bill, > >>> > >>> Is this into a dummy load (bypass the ATU or tune the ATU into the > dummy load). > >>> If it is into an antenna, there are a whole lot of guesses about how > the antenna behaves with higher power levels than your antenna analyzer > shows. So check it with a dummy load to eliminate the possibility that the > problem is in the antenna. > >>> > >>> Put an external wattmeter in line with the dummy load to eliminate > questions about the calibration on the K3 wattmeter. > >>> > >>> If you can measure the actual current drawn, that would also be > helpful. > >>> > >>> 73, > >>> Don W3FPR > >>> > >>> On 1/11/2020 11:18 AM, Bill Coleman wrote: > Back in early December, I installed two KSYN3As in my K3 SN 7071. > Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication > when I set the power level to more than about 80-85 watts. The K3 will back > off on the power level, then slowly ramp back up until it hits HI CUR again. > I don’t remember seeing this before. After the KSYNC3A install, I ran > the transmit gain calibration at both 5 and 50 watts, as specified in the > instructions. Just in case something went awry, I ran it again. > I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 > ought to be able to produce over 110 watts on 12m. > I’m not seeing this issue on other bands. > No issues with calibration > >> Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net > >> Web: http://boringhamradiopart.blogspot.com > >> Quote: "Not within a thousand years will man ever fly!" > >> -- Wilbur Wright, 1901 > >> > > > > Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net > Web: http://boringhamradiopart.blogspot.com > Quote: "Not within a thousand years will man ever fly!" > -- Wilbur Wright, 1901 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ro...@redpoint.org.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
SWR on the problem antenna is below 1.2:1. It’s a trap dipole - designed for that band. It is unlikely the balun is “breaking down”. It’s a current balun - #43 ferrite beads on RG-313 coax. It can easily handle a kW or more. > On Oct 12, 2020, at 2:12 AM, Don Wilhelm wrote: > > Bill, > > I would suggest that you check the SWR on the antenna before concluding it is > an RF feedback problem. > Don't forget that the balun may be breaking down with power and show no > problem at lower power (like from an antenna analyzer). > > Don W3FPR > > On 10/11/2020 8:53 PM, Bill Coleman wrote: >> Don, >> >> I finally got around to running my K3 into a dummy load. >> >> I had no problem running 100w or even 110w with a dummy load. Current draw >> from the power supply was 22 A and 23 A, respectively, on the K3 display. No >> HI CUR indications. >> >> External wattmeter validates the output. >> >> I was getting the HI CUR indication on a trap 30/17/12m inverted V. I had to >> take it down, and now I’m using a trap 80/40/20m dipole through the tuner. >> No HI CUR indication on that antenna, either. >> >> Even though I have current baluns on both antennas, I’m thinking that my HI >> CUR problem may be related to RF feedback in the shack. >> >> Do you concur? >> >> I’m in the process of a number of shack improvements, including antenna >> replacements and grounding and bonding, so that might take care of it. >> >>> On Jan 11, 2020, at 11:29 AM, Don Wilhelm wrote: >>> >>> Bill, >>> >>> Is this into a dummy load (bypass the ATU or tune the ATU into the dummy >>> load). >>> If it is into an antenna, there are a whole lot of guesses about how the >>> antenna behaves with higher power levels than your antenna analyzer shows. >>> So check it with a dummy load to eliminate the possibility that the problem >>> is in the antenna. >>> >>> Put an external wattmeter in line with the dummy load to eliminate >>> questions about the calibration on the K3 wattmeter. >>> >>> If you can measure the actual current drawn, that would also be helpful. >>> >>> 73, >>> Don W3FPR >>> >>> On 1/11/2020 11:18 AM, Bill Coleman wrote: Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. I don’t remember seeing this before. After the KSYNC3A install, I ran the transmit gain calibration at both 5 and 50 watts, as specified in the instructions. Just in case something went awry, I ran it again. I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought to be able to produce over 110 watts on 12m. I’m not seeing this issue on other bands. No issues with calibration >> Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net >> Web: http://boringhamradiopart.blogspot.com >> Quote: "Not within a thousand years will man ever fly!" >> -- Wilbur Wright, 1901 >> > Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Bill, I would suggest that you check the SWR on the antenna before concluding it is an RF feedback problem. Don't forget that the balun may be breaking down with power and show no problem at lower power (like from an antenna analyzer). Don W3FPR On 10/11/2020 8:53 PM, Bill Coleman wrote: Don, I finally got around to running my K3 into a dummy load. I had no problem running 100w or even 110w with a dummy load. Current draw from the power supply was 22 A and 23 A, respectively, on the K3 display. No HI CUR indications. External wattmeter validates the output. I was getting the HI CUR indication on a trap 30/17/12m inverted V. I had to take it down, and now I’m using a trap 80/40/20m dipole through the tuner. No HI CUR indication on that antenna, either. Even though I have current baluns on both antennas, I’m thinking that my HI CUR problem may be related to RF feedback in the shack. Do you concur? I’m in the process of a number of shack improvements, including antenna replacements and grounding and bonding, so that might take care of it. On Jan 11, 2020, at 11:29 AM, Don Wilhelm wrote: Bill, Is this into a dummy load (bypass the ATU or tune the ATU into the dummy load). If it is into an antenna, there are a whole lot of guesses about how the antenna behaves with higher power levels than your antenna analyzer shows. So check it with a dummy load to eliminate the possibility that the problem is in the antenna. Put an external wattmeter in line with the dummy load to eliminate questions about the calibration on the K3 wattmeter. If you can measure the actual current drawn, that would also be helpful. 73, Don W3FPR On 1/11/2020 11:18 AM, Bill Coleman wrote: Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. I don’t remember seeing this before. After the KSYNC3A install, I ran the transmit gain calibration at both 5 and 50 watts, as specified in the instructions. Just in case something went awry, I ran it again. I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought to be able to produce over 110 watts on 12m. I’m not seeing this issue on other bands. No issues with calibration Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Antenna feed impedance under 50R? Take some measurements with a cheap VNA On Mon, 12 Oct 2020 at 01:55, Bill Coleman wrote: > Don, > > I finally got around to running my K3 into a dummy load. > > I had no problem running 100w or even 110w with a dummy load. Current draw > from the power supply was 22 A and 23 A, respectively, on the K3 display. > No HI CUR indications. > > External wattmeter validates the output. > > I was getting the HI CUR indication on a trap 30/17/12m inverted V. I had > to take it down, and now I’m using a trap 80/40/20m dipole through the > tuner. No HI CUR indication on that antenna, either. > > Even though I have current baluns on both antennas, I’m thinking that my > HI CUR problem may be related to RF feedback in the shack. > > Do you concur? > > I’m in the process of a number of shack improvements, including antenna > replacements and grounding and bonding, so that might take care of it. > > > On Jan 11, 2020, at 11:29 AM, Don Wilhelm > wrote: > > > > Bill, > > > > Is this into a dummy load (bypass the ATU or tune the ATU into the dummy > load). > > If it is into an antenna, there are a whole lot of guesses about how the > antenna behaves with higher power levels than your antenna analyzer shows. > So check it with a dummy load to eliminate the possibility that the problem > is in the antenna. > > > > Put an external wattmeter in line with the dummy load to eliminate > questions about the calibration on the K3 wattmeter. > > > > If you can measure the actual current drawn, that would also be helpful. > > > > 73, > > Don W3FPR > > > > On 1/11/2020 11:18 AM, Bill Coleman wrote: > >> Back in early December, I installed two KSYN3As in my K3 SN 7071. > Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication > when I set the power level to more than about 80-85 watts. The K3 will back > off on the power level, then slowly ramp back up until it hits HI CUR again. > >> I don’t remember seeing this before. After the KSYNC3A install, I ran > the transmit gain calibration at both 5 and 50 watts, as specified in the > instructions. Just in case something went awry, I ran it again. > >> I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 > ought to be able to produce over 110 watts on 12m. > >> I’m not seeing this issue on other bands. > >> No issues with calibration > > Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net > Web: http://boringhamradiopart.blogspot.com > Quote: "Not within a thousand years will man ever fly!" > -- Wilbur Wright, 1901 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ro...@redpoint.org.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Don, I finally got around to running my K3 into a dummy load. I had no problem running 100w or even 110w with a dummy load. Current draw from the power supply was 22 A and 23 A, respectively, on the K3 display. No HI CUR indications. External wattmeter validates the output. I was getting the HI CUR indication on a trap 30/17/12m inverted V. I had to take it down, and now I’m using a trap 80/40/20m dipole through the tuner. No HI CUR indication on that antenna, either. Even though I have current baluns on both antennas, I’m thinking that my HI CUR problem may be related to RF feedback in the shack. Do you concur? I’m in the process of a number of shack improvements, including antenna replacements and grounding and bonding, so that might take care of it. > On Jan 11, 2020, at 11:29 AM, Don Wilhelm wrote: > > Bill, > > Is this into a dummy load (bypass the ATU or tune the ATU into the dummy > load). > If it is into an antenna, there are a whole lot of guesses about how the > antenna behaves with higher power levels than your antenna analyzer shows. > So check it with a dummy load to eliminate the possibility that the problem > is in the antenna. > > Put an external wattmeter in line with the dummy load to eliminate questions > about the calibration on the K3 wattmeter. > > If you can measure the actual current drawn, that would also be helpful. > > 73, > Don W3FPR > > On 1/11/2020 11:18 AM, Bill Coleman wrote: >> Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime >> after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set >> the power level to more than about 80-85 watts. The K3 will back off on the >> power level, then slowly ramp back up until it hits HI CUR again. >> I don’t remember seeing this before. After the KSYNC3A install, I ran the >> transmit gain calibration at both 5 and 50 watts, as specified in the >> instructions. Just in case something went awry, I ran it again. >> I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought >> to be able to produce over 110 watts on 12m. >> I’m not seeing this issue on other bands. >> No issues with calibration Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Curious. I’m doing a lot of antenna work right now. I had to remove my 12/17/30m trap inverted V to get my beam off the tower. In the meantime, I’m making due with a 20/40/80m trap dipole. If I use 12m on the 20/40/80m dipole using a tuner, I’m not having any HI CUR issues, even when running 100 watts. I think what I’m seeing is an RF in the shack issue. The 20/40/80m antenna feed point is about 70 feet further away than the old 12/17/30m antenna. > On Sep 5, 2020, at 10:41 PM, Bob McGraw K4TAX wrote: > > I suggest you perform a TX Gain calibration using the K3 Utility. A known > accurate dummy load is all that is required. > > I’d say that a 1 volt drop is excessive. Check power cable connectors. Also > add a dedicated ground conductor between the ground terminal on the radio and > power supply ground terminal. > > The displayed voltage on the radio should be about 0.5 volt difference > between RX and TX, CW mode key closed.These measurements should be made > using a dummy load. > > 73 > Bob, K4TAX > > > Sent from my iPhone > >> On Sep 5, 2020, at 7:15 PM, Bill Coleman wrote: >> >> I checked this. Voltage was 13.8 volts no load, dropped about a volt under >> load. >> >> I cranked it up to 14.4 volts no load, and it’s better, but still getting HI >> CUR indication above 90 watts. >> >>> On Jan 11, 2020, at 11:43 AM, Bob McGraw K4TAX wrote: >>> >>> Is the power supply at 14 volts or so? And what does the radio show the >>> voltage to be in key down transmit into a dummy load. Low voltage will >>> demand more current to produce 100 watts. >>> >>> I run my supply at 14.25 V no load and the radio shows 13.8V during 100 >>> watts transmit. Voltage drop should be 0.5 volts or less. >>> >>> Bob, K4TAX >>> >>> >>> Sent from my iPhone >>> > On Jan 11, 2020, at 10:31 AM, Bill Coleman wrote: Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. I don’t remember seeing this before. After the KSYNC3A install, I ran the transmit gain calibration at both 5 and 50 watts, as specified in the instructions. Just in case something went awry, I ran it again. I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought to be able to produce over 110 watts on 12m. I’m not seeing this issue on other bands. No issues with calibration Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net >>> >>> >> >> Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net >> Web: http://boringhamradiopart.blogspot.com >> Quote: "Not within a thousand years will man ever fly!" >> -- Wilbur Wright, 1901 >> >> > > Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
I checked this. Voltage was 13.8 volts no load, dropped about a volt under load. I cranked it up to 14.4 volts no load, and it’s better, but still getting HI CUR indication above 90 watts. > On Jan 11, 2020, at 11:43 AM, Bob McGraw K4TAX wrote: > > Is the power supply at 14 volts or so? And what does the radio show the > voltage to be in key down transmit into a dummy load. Low voltage will > demand more current to produce 100 watts. > > I run my supply at 14.25 V no load and the radio shows 13.8V during 100 watts > transmit. Voltage drop should be 0.5 volts or less. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jan 11, 2020, at 10:31 AM, Bill Coleman wrote: >> >> Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime >> after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set >> the power level to more than about 80-85 watts. The K3 will back off on the >> power level, then slowly ramp back up until it hits HI CUR again. >> >> I don’t remember seeing this before. After the KSYNC3A install, I ran the >> transmit gain calibration at both 5 and 50 watts, as specified in the >> instructions. Just in case something went awry, I ran it again. >> >> I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought >> to be able to produce over 110 watts on 12m. >> >> I’m not seeing this issue on other bands. >> >> No issues with calibration >> Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net >> Web: http://boringhamradiopart.blogspot.com >> Quote: "Not within a thousand years will man ever fly!" >> -- Wilbur Wright, 1901 >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcg...@blomand.net > > Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
It sounds like an antenna connector problem . Sent from my iPhone > On 20 Jul 2020, at 02:53, w5...@comcast.net wrote: > > ok I'm going to be answering several of your suggestions at once here. > > First, when I powered off last night, I used the power button on the K3 > itself, I did not kill the power supply first > > The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 is > selected and the Antenna IS plugged into the port > > The is NO noise shown on the S meter and I have a pretty constant S3 to S5 > noise here at my qth. > > Regardless of mode selected there is no power output, the display says 0 > > When I activate the tuner, regardless of band, it shows no SWR, says 5 watts > out, but there is NO POWER OUT of it. It always acts like it is matching, or > sounds like it is. > > Ronnie > > -Original Message- From: Bill Frantz > Sent: Sunday, July 19, 2020 11:40 AM > To: w5...@comcast.net > Cc: Ian Kahn ; Elecraft Reflector > Subject: Re: [Elecraft] K3 Issue > > The K3 can get antennas in a bewildering collection of ways. If > the RX antenna switch is on -- and this was my way of getting on > reception -- it might be your problem. The K3 can also send > received signals out on one of the BNC connectors and expect to > get them back on another. > > I recommend a careful reading of the manual, perhaps in PDF form > with a search for "antenna". The manual is downloadable from the > Elecraft web site. > > 73 Bill AE6JV > >> On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: >> >> yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move >> the antenna to port 2 and selected that port to no improvement. Same issue > > --- > Bill Frantz| Privacy is dead, get over | Periwinkle > (408)348-7900 | it. | 150 Rivermead > Rd #235 > www.pwpconsult.com |- Scott McNealy (1999) | Peterborough, > NH 03458 > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk...@optusnet.com.au __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue FIXED!!!!!
Glad to hear you got the problem solved, Ronnie,. A properly seated TMP connector isn’t like to just pop out, even with the rigors of shipping. So it’s a better than even bet it wasn’t properly seated to begin with. If shipping actually did that to a seated TMP connector, you probably would have received a very non-rectangular radio with a forklift tine through the front panel :-) Grant NQ5T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue FIXED!!!!!
God knows how much they beat the radio in shipping! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 7/19/20 10:30 AM, w5...@comcast.net wrote: First let me thank each and every one of you for your suggestions. Victor, 4X6GP suggested I check all the small cables going in and out of the Synthesizers and THERE IT WAS!! One of them was completely out!! Plugged it back in and all is well!! Man you guys are great!! Thanks so much for all the help! Ronnie W5SUM -Original Message- From: Victor Rosenthal 4X6GP Sent: Sunday, July 19, 2020 12:00 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Issue I suggest that you call Elecraft Support on Monday. I'm sure they have a diagnostic procedure that they can take you through on the phone. Even if there IS a failure somewhere, chances are that you can fix it yourself with their help. Just guessing, but I suggest you open it and make sure all the small coax cables to the synthesizers are well seated. Since it was recently shipped, something could have worked loose. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 19/07/2020 19:53, w5...@comcast.net wrote: ok I'm going to be answering several of your suggestions at once here. First, when I powered off last night, I used the power button on the K3 itself, I did not kill the power supply first The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 is selected and the Antenna IS plugged into the port The is NO noise shown on the S meter and I have a pretty constant S3 to S5 noise here at my qth. Regardless of mode selected there is no power output, the display says 0 When I activate the tuner, regardless of band, it shows no SWR, says 5 watts out, but there is NO POWER OUT of it. It always acts like it is matching, or sounds like it is. Ronnie -Original Message- From: Bill Frantz Sent: Sunday, July 19, 2020 11:40 AM To: w5...@comcast.net Cc: Ian Kahn ; Elecraft Reflector Subject: Re: [Elecraft] K3 Issue The K3 can get antennas in a bewildering collection of ways. If the RX antenna switch is on -- and this was my way of getting on reception -- it might be your problem. The K3 can also send received signals out on one of the BNC connectors and expect to get them back on another. I recommend a careful reading of the manual, perhaps in PDF form with a search for "antenna". The manual is downloadable from the Elecraft web site. 73 Bill AE6JV On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move the antenna to port 2 and selected that port to no improvement. Same issue --- Bill Frantz | Privacy is dead, get over | Periwinkle (408)348-7900 | it. | 150 Rivermead Rd #235 www.pwpconsult.com | - Scott McNealy (1999) | Peterborough, NH 03458 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k2vco@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w5...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
Before doing that be sure your connections are secured to antenna and it is working. Have a great day! Bill From: elecraft-boun...@mailman.qth.net on behalf of Victor Rosenthal 4X6GP Sent: Sunday, July 19, 2020 12:00:19 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Issue I suggest that you call Elecraft Support on Monday. I'm sure they have a diagnostic procedure that they can take you through on the phone. Even if there IS a failure somewhere, chances are that you can fix it yourself with their help. Just guessing, but I suggest you open it and make sure all the small coax cables to the synthesizers are well seated. Since it was recently shipped, something could have worked loose. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 19/07/2020 19:53, w5...@comcast.net wrote: > ok I'm going to be answering several of your suggestions at once > here. > > First, when I powered off last night, I used the power button on the > K3 itself, I did not kill the power supply first > > The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 > is selected and the Antenna IS plugged into the port > > The is NO noise shown on the S meter and I have a pretty constant S3 > to S5 noise here at my qth. > > Regardless of mode selected there is no power output, the display > says 0 > > When I activate the tuner, regardless of band, it shows no SWR, says > 5 watts out, but there is NO POWER OUT of it. It always acts like it > is matching, or sounds like it is. > > Ronnie > > -Original Message- From: Bill Frantz Sent: Sunday, July 19, > 2020 11:40 AM To: w5...@comcast.net Cc: Ian Kahn ; Elecraft > Reflector Subject: Re: [Elecraft] K3 Issue > > The K3 can get antennas in a bewildering collection of ways. If the > RX antenna switch is on -- and this was my way of getting on > reception -- it might be your problem. The K3 can also send received > signals out on one of the BNC connectors and expect to get them back > on another. > > I recommend a careful reading of the manual, perhaps in PDF form with > a search for "antenna". The manual is downloadable from the Elecraft > web site. > > 73 Bill AE6JV > > On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: > >> yes sir.. using antenna port 1 and have it selected. HOWEVER.. I >> did move the antenna to port 2 and selected that port to no >> improvement. Same issue > > --- > > Bill Frantz| Privacy is dead, get over | Periwinkle > (408)348-7900 | it. | 150 Rivermead Rd > #235 www.pwpconsult.com<http://www.pwpconsult.com> |- Scott McNealy > (1999) | Peterborough, > NH 03458 > __ > Elecraft mailing list Home: > http://mailman.qth.net/mailman/listinfo/elecraft Help: > http://mailman.qth.net/mmfaq.htm Post: > mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this > email list: http://www.qsl.net/donate.html Message delivered to > k2vco@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9...@live.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
Ronnie, a few months ago I had the same problem when my K3 #1184 was on for about an hour. No RX, and no TX output. The KSYN3A synthesizer seemed to have lost contact with the rest of the K3 and it gave different error codes. The problem has finally been solved by disassembling the complete K3 and SUBRX with all of its TMP cables, and I suspect one of these cables caused the problem. An intermittent contact of the KREF3 reference oscillator could also be the cause. 73s Steef PA2A From: Ronnie W5SUM To: "Elecraft Reflector" Subject: [Elecraft] K3 Issue Good Morning I purchased a used K3 a couple of weeks ago and received it last thursday. I hooked it up and it worked GREAT. Used it for SSB and CW contacts on 80M and ssb on 10M. Shut it down about 8pm last night. Turned it on this morning, and it has white noise audio but receives no signals at all. Nothing showing on the S meter either not even noise. NO POWER OUTPUT either. Has anyone every seen a sudden failure like this? I'm heartbroken as I am fearful of a astronomical repair charge from Elecraft and the person I bought it from is offering no warranty at all and since it was used I totally understand that part. Thanks in advance Ronnie W5SUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue FIXED!!!!!
First let me thank each and every one of you for your suggestions. Victor, 4X6GP suggested I check all the small cables going in and out of the Synthesizers and THERE IT WAS!! One of them was completely out!! Plugged it back in and all is well!! Man you guys are great!! Thanks so much for all the help! Ronnie W5SUM -Original Message- From: Victor Rosenthal 4X6GP Sent: Sunday, July 19, 2020 12:00 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Issue I suggest that you call Elecraft Support on Monday. I'm sure they have a diagnostic procedure that they can take you through on the phone. Even if there IS a failure somewhere, chances are that you can fix it yourself with their help. Just guessing, but I suggest you open it and make sure all the small coax cables to the synthesizers are well seated. Since it was recently shipped, something could have worked loose. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 19/07/2020 19:53, w5...@comcast.net wrote: ok I'm going to be answering several of your suggestions at once here. First, when I powered off last night, I used the power button on the K3 itself, I did not kill the power supply first The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 is selected and the Antenna IS plugged into the port The is NO noise shown on the S meter and I have a pretty constant S3 to S5 noise here at my qth. Regardless of mode selected there is no power output, the display says 0 When I activate the tuner, regardless of band, it shows no SWR, says 5 watts out, but there is NO POWER OUT of it. It always acts like it is matching, or sounds like it is. Ronnie -Original Message- From: Bill Frantz Sent: Sunday, July 19, 2020 11:40 AM To: w5...@comcast.net Cc: Ian Kahn ; Elecraft Reflector Subject: Re: [Elecraft] K3 Issue The K3 can get antennas in a bewildering collection of ways. If the RX antenna switch is on -- and this was my way of getting on reception -- it might be your problem. The K3 can also send received signals out on one of the BNC connectors and expect to get them back on another. I recommend a careful reading of the manual, perhaps in PDF form with a search for "antenna". The manual is downloadable from the Elecraft web site. 73 Bill AE6JV On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move the antenna to port 2 and selected that port to no improvement. Same issue --- Bill Frantz| Privacy is dead, get over | Periwinkle (408)348-7900 | it. | 150 Rivermead Rd #235 www.pwpconsult.com |- Scott McNealy (1999) | Peterborough, NH 03458 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k2vco@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w5...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
I had the same issue and it was a bad connection on the TMP cables. I just reseated all of them and all has been OK for me. I hope I didn't just jinx it. Mike KK9V On Sun, Jul 19, 2020 at 12:54 PM wrote: > ok I'm going to be answering several of your suggestions at once here. > > First, when I powered off last night, I used the power button on the K3 > itself, I did not kill the power supply first > > The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 is > selected and the Antenna IS plugged into the port > > The is NO noise shown on the S meter and I have a pretty constant S3 to > S5 > noise here at my qth. > > Regardless of mode selected there is no power output, the display says 0 > > When I activate the tuner, regardless of band, it shows no SWR, says 5 > watts > out, but there is NO POWER OUT of it. It always acts like it is matching, > or > sounds like it is. > > Ronnie > > -Original Message- > From: Bill Frantz > Sent: Sunday, July 19, 2020 11:40 AM > To: w5...@comcast.net > Cc: Ian Kahn ; Elecraft Reflector > Subject: Re: [Elecraft] K3 Issue > > The K3 can get antennas in a bewildering collection of ways. If > the RX antenna switch is on -- and this was my way of getting on > reception -- it might be your problem. The K3 can also send > received signals out on one of the BNC connectors and expect to > get them back on another. > > I recommend a careful reading of the manual, perhaps in PDF form > with a search for "antenna". The manual is downloadable from the > Elecraft web site. > > 73 Bill AE6JV > > On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: > > >yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did > move > >the antenna to port 2 and selected that port to no improvement. Same issue > > --- > Bill Frantz| Privacy is dead, get over | Periwinkle > (408)348-7900 | it. | 150 Rivermead > Rd #235 > www.pwpconsult.com |- Scott McNealy (1999) | Peterborough, > NH 03458 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mik...@gmail.com > -- Mike Stokes KK9V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
I suggest that you call Elecraft Support on Monday. I'm sure they have a diagnostic procedure that they can take you through on the phone. Even if there IS a failure somewhere, chances are that you can fix it yourself with their help. Just guessing, but I suggest you open it and make sure all the small coax cables to the synthesizers are well seated. Since it was recently shipped, something could have worked loose. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 19/07/2020 19:53, w5...@comcast.net wrote: ok I'm going to be answering several of your suggestions at once here. First, when I powered off last night, I used the power button on the K3 itself, I did not kill the power supply first The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 is selected and the Antenna IS plugged into the port The is NO noise shown on the S meter and I have a pretty constant S3 to S5 noise here at my qth. Regardless of mode selected there is no power output, the display says 0 When I activate the tuner, regardless of band, it shows no SWR, says 5 watts out, but there is NO POWER OUT of it. It always acts like it is matching, or sounds like it is. Ronnie -Original Message- From: Bill Frantz Sent: Sunday, July 19, 2020 11:40 AM To: w5...@comcast.net Cc: Ian Kahn ; Elecraft Reflector Subject: Re: [Elecraft] K3 Issue The K3 can get antennas in a bewildering collection of ways. If the RX antenna switch is on -- and this was my way of getting on reception -- it might be your problem. The K3 can also send received signals out on one of the BNC connectors and expect to get them back on another. I recommend a careful reading of the manual, perhaps in PDF form with a search for "antenna". The manual is downloadable from the Elecraft web site. 73 Bill AE6JV On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move the antenna to port 2 and selected that port to no improvement. Same issue --- Bill Frantz| Privacy is dead, get over | Periwinkle (408)348-7900 | it. | 150 Rivermead Rd #235 www.pwpconsult.com |- Scott McNealy (1999) | Peterborough, NH 03458 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k2vco@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
ok I'm going to be answering several of your suggestions at once here. First, when I powered off last night, I used the power button on the K3 itself, I did not kill the power supply first The sub RX has been turned off and the RX Ant is NOT selected. Ant 1 is selected and the Antenna IS plugged into the port The is NO noise shown on the S meter and I have a pretty constant S3 to S5 noise here at my qth. Regardless of mode selected there is no power output, the display says 0 When I activate the tuner, regardless of band, it shows no SWR, says 5 watts out, but there is NO POWER OUT of it. It always acts like it is matching, or sounds like it is. Ronnie -Original Message- From: Bill Frantz Sent: Sunday, July 19, 2020 11:40 AM To: w5...@comcast.net Cc: Ian Kahn ; Elecraft Reflector Subject: Re: [Elecraft] K3 Issue The K3 can get antennas in a bewildering collection of ways. If the RX antenna switch is on -- and this was my way of getting on reception -- it might be your problem. The K3 can also send received signals out on one of the BNC connectors and expect to get them back on another. I recommend a careful reading of the manual, perhaps in PDF form with a search for "antenna". The manual is downloadable from the Elecraft web site. 73 Bill AE6JV On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move the antenna to port 2 and selected that port to no improvement. Same issue --- Bill Frantz| Privacy is dead, get over | Periwinkle (408)348-7900 | it. | 150 Rivermead Rd #235 www.pwpconsult.com |- Scott McNealy (1999) | Peterborough, NH 03458 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
The K3 can get antennas in a bewildering collection of ways. If the RX antenna switch is on -- and this was my way of getting on reception -- it might be your problem. The K3 can also send received signals out on one of the BNC connectors and expect to get them back on another. I recommend a careful reading of the manual, perhaps in PDF form with a search for "antenna". The manual is downloadable from the Elecraft web site. 73 Bill AE6JV On 7/19/20 at 12:10 PM, w5...@comcast.net wrote: yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move the antenna to port 2 and selected that port to no improvement. Same issue --- Bill Frantz| Privacy is dead, get over | Periwinkle (408)348-7900 | it. | 150 Rivermead Rd #235 www.pwpconsult.com |- Scott McNealy (1999) | Peterborough, NH 03458 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
yes sir.. using antenna port 1 and have it selected. HOWEVER.. I did move the antenna to port 2 and selected that port to no improvement. Same issue Ronnie From: Ian Kahn Sent: Sunday, July 19, 2020 11:09 AM To: w5...@comcast.net Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 Issue First thing I'd check is to verify you have the correct antenna port selected. I have yet to meet any K3 owner who hasn't made that mistake at some point, your's truly included. ;-) 73 de, Ian, NV4C On Sun, Jul 19, 2020, 12:05 PM wrote: Good Morning I purchase a used K3 a couple of weeks ago and received it last thursday. I hooked it up and it worked GREAT. Used it for SSB and CW contacts on 80M and ssb on 10M. Shut it down about 8pm last night. Turned it on this morning, and it has white noise audio but receives no signals at all. Nothing showing on the S meter either not even noise. NO POWER OUTPUT either. Has anyone every seen a sudden failure like this? I'm heartbroken as I am fearful of a astronomical repair charge from Elecraft and the person I bought it from is offering no warranty at all and since it was used I totally understand that part. Thanks in advance Ronnie W5SUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to nv4c@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Issue
First thing I'd check is to verify you have the correct antenna port selected. I have yet to meet any K3 owner who hasn't made that mistake at some point, your's truly included. ;-) 73 de, Ian, NV4C On Sun, Jul 19, 2020, 12:05 PM wrote: > Good Morning > > I purchase a used K3 a couple of weeks ago and received it last thursday. > I > hooked it up and it worked GREAT. Used it for SSB and CW contacts on 80M > and ssb on 10M. Shut it down about 8pm last night. Turned it on this > morning, and it has white noise audio but receives no signals at all. > Nothing showing on the S meter either not even noise. NO POWER OUTPUT > either. > > Has anyone every seen a sudden failure like this? I'm heartbroken as I am > fearful of a astronomical repair charge from Elecraft and the person I > bought it from is offering no warranty at all and since it was used I > totally understand that part. > > Thanks in advance > > Ronnie W5SUM > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 Issue
Good Morning I purchase a used K3 a couple of weeks ago and received it last thursday. I hooked it up and it worked GREAT. Used it for SSB and CW contacts on 80M and ssb on 10M. Shut it down about 8pm last night. Turned it on this morning, and it has white noise audio but receives no signals at all. Nothing showing on the S meter either not even noise. NO POWER OUTPUT either. Has anyone every seen a sudden failure like this? I'm heartbroken as I am fearful of a astronomical repair charge from Elecraft and the person I bought it from is offering no warranty at all and since it was used I totally understand that part. Thanks in advance Ronnie W5SUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Check antenna. Also, check into dummy load and report back. Sent from my iPhone ...nr4c. bill > On Jan 11, 2020, at 11:45 AM, Bob McGraw K4TAX wrote: > > Is the power supply at 14 volts or so? And what does the radio show the > voltage to be in key down transmit into a dummy load. Low voltage will > demand more current to produce 100 watts. > > I run my supply at 14.25 V no load and the radio shows 13.8V during 100 watts > transmit. Voltage drop should be 0.5 volts or less. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jan 11, 2020, at 10:31 AM, Bill Coleman wrote: >> >> Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime >> after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set >> the power level to more than about 80-85 watts. The K3 will back off on the >> power level, then slowly ramp back up until it hits HI CUR again. >> >> I don’t remember seeing this before. After the KSYNC3A install, I ran the >> transmit gain calibration at both 5 and 50 watts, as specified in the >> instructions. Just in case something went awry, I ran it again. >> >> I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought >> to be able to produce over 110 watts on 12m. >> >> I’m not seeing this issue on other bands. >> >> No issues with calibration >> Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net >> Web: http://boringhamradiopart.blogspot.com >> Quote: "Not within a thousand years will man ever fly!" >> -- Wilbur Wright, 1901 >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcg...@blomand.net > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@widomaker.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Is the power supply at 14 volts or so? And what does the radio show the voltage to be in key down transmit into a dummy load. Low voltage will demand more current to produce 100 watts. I run my supply at 14.25 V no load and the radio shows 13.8V during 100 watts transmit. Voltage drop should be 0.5 volts or less. Bob, K4TAX Sent from my iPhone > On Jan 11, 2020, at 10:31 AM, Bill Coleman wrote: > > Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime > after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set > the power level to more than about 80-85 watts. The K3 will back off on the > power level, then slowly ramp back up until it hits HI CUR again. > > I don’t remember seeing this before. After the KSYNC3A install, I ran the > transmit gain calibration at both 5 and 50 watts, as specified in the > instructions. Just in case something went awry, I ran it again. > > I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought > to be able to produce over 110 watts on 12m. > > I’m not seeing this issue on other bands. > > No issues with calibration > Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net > Web: http://boringhamradiopart.blogspot.com > Quote: "Not within a thousand years will man ever fly!" >-- Wilbur Wright, 1901 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Issue with HI CUR on 12m
Bill, Is this into a dummy load (bypass the ATU or tune the ATU into the dummy load). If it is into an antenna, there are a whole lot of guesses about how the antenna behaves with higher power levels than your antenna analyzer shows. So check it with a dummy load to eliminate the possibility that the problem is in the antenna. Put an external wattmeter in line with the dummy load to eliminate questions about the calibration on the K3 wattmeter. If you can measure the actual current drawn, that would also be helpful. 73, Don W3FPR On 1/11/2020 11:18 AM, Bill Coleman wrote: Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. I don’t remember seeing this before. After the KSYNC3A install, I ran the transmit gain calibration at both 5 and 50 watts, as specified in the instructions. Just in case something went awry, I ran it again. I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought to be able to produce over 110 watts on 12m. I’m not seeing this issue on other bands. No issues with calibration __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [K3] Issue with HI CUR on 12m
Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I’m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. I don’t remember seeing this before. After the KSYNC3A install, I ran the transmit gain calibration at both 5 and 50 watts, as specified in the instructions. Just in case something went awry, I ran it again. I’m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought to be able to produce over 110 watts on 12m. I’m not seeing this issue on other bands. No issues with calibration Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: issue with K3EXREF installation, part 2
Thanks Jim: I'll add that detail to the manual. Feedback like yours is how we constantly improve the instructions. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Spears Sent: Sunday, April 3, 2016 7:26 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: issue with K3EXREF installation, part 2 Thanks for the comments folks. I now know exactly what I did wrong. There were two details I messed up. The first detail was threading the coax before tightening the outside nut. This caused the coax itself to be torqued and rotate when I tightened the outside nut without securing the body of the connector which is detail two. The second detail was not securing the body of the connector when I tightened the outside nut which allowed the coax to be torqued and rotate which is detail one. The result was that the coax torqued since it was not free to rotate and put force on the ferrule which caused it to break apart. Lessons learned. When I get the replacement coax, I will make sure I do not thread the coax before tightening the outside nut AND will secure the body of the connector. It appears that the K3 is happy with the signal coming in from the GPSDO but this is not a desirable long term situation. Jim/N1NK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to r...@cobi.biz __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3: issue with K3EXREF installation, part 2
Thanks for the comments folks. I now know exactly what I did wrong. There were two details I messed up. The first detail was threading the coax before tightening the outside nut. This caused the coax itself to be torqued and rotate when I tightened the outside nut without securing the body of the connector which is detail two. The second detail was not securing the body of the connector when I tightened the outside nut which allowed the coax to be torqued and rotate which is detail one. The result was that the coax torqued since it was not free to rotate and put force on the ferrule which caused it to break apart. Lessons learned. When I get the replacement coax, I will make sure I do not thread the coax before tightening the outside nut AND will secure the body of the connector. It appears that the K3 is happy with the signal coming in from the GPSDO but this is not a desirable long term situation. Jim/N1NK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 issue in CW mode
Nope, the T indicates TEXT DECODE ...nr4c Sent from my Verizon Wireless 4G LTE DROID Jim Sheldon wrote: >Nope, if the T is showing, the rig is in "TEST" mode. Hold down the right >hand portion of the MODE switch until it goes away and it'll put out power >again. > >Jim - W0EB > >> Turn on VOX... >> >> ...bill nr4c >> >> Sent from my Verizon Wireless 4G LTE DROID >> >> Joel Black wrote: >> >>> I think the "T" just indicates CW decode. Hold the TEXT DEC >>> button and then rotate the VFO B knob until you get OFF in the >>> VFO B section of the display. >>> >>> 73, >>> Joel - W4JBB >>> >>> On 2/23/14, 10:44 PM, Ham Radio wrote: >>>> In CW mode it still will not get any power out and I am stuck >>>> with the T in the lower right part of the display. >>>> >>>> CW was working fine until I went to 2m and then returned back >>>> to 6m and then subsequently to HF. All other modes are working >>>> fine. >>>> >>>> Any thoughts or ideas of what I have done would be helpful. >>>> >>>> Thanks, >>>> >>>> Keith >>>> AK6ZZ >>>> >>>> -Original Message- From: Ham Radio >>>> Sent: Sunday, February 23, 2014 7:46 PM >>>> To: Elecraft Group >>>> Subject: Re: [Elecraft] K3 issue in CW mode >>>> >>>> I figured out the + now looking to get rid of the T. >>>> >>>> Keith >>>> AK6ZZ >>>> >>>> -Original Message- From: Keith Heimbold >>>> Sent: Sunday, February 23, 2014 6:12 PM >>>> To: Elecraft Group >>>> Subject: [Elecraft] K3 issue in CW mode >>>> >>>> I just turned on my 2m transverter and when I went back to 6m >>>> my CW doesn't >>>> work. The display shows + and T and I don't get any power out >>>> in CW. Other >>>> modes work fine. I looked at instructions but couldn't figure >>>> it out. >>>> >>>> Keith >>>> AK6ZZ >>>> >>>> Sent from my iPhone please excuse typos >>>> __ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: >>>> http://mailman.qth.net/mmfaq.htm Post: >>>> mailto:Elecraft@mailman.qth.net >>>> >>>> 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:Elecraft@mailman.qth.net >>>> >>>> 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:Elecraft@mailman.qth.net >>>> >>>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > >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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
It was the VOX issue. Now need to understand why when I went from the transverter my settings changed in CW. Everything is good again. Thanks everyone! Keith AK6ZZ Sent from my iPhone please excuse typos > On Feb 24, 2014, at 6:15 AM, "Jim Sheldon" wrote: > > PS, disregard my last -- not enough coffee. Joel was correct on that and > it would have been the "TX" that was flashing if it were in the "TEST" mode > -- my bad. > > Jim - W0EB > >> Turn on VOX... >> >> ...bill nr4c >> >> Sent from my Verizon Wireless 4G LTE DROID >> >> Joel Black wrote: >> >>> I think the "T" just indicates CW decode. Hold the TEXT DEC >>> button and then rotate the VFO B knob until you get OFF in the >>> VFO B section of the display. >>> >>> 73, >>> Joel - W4JBB >>> >>>> On 2/23/14, 10:44 PM, Ham Radio wrote: >>>> In CW mode it still will not get any power out and I am stuck >>>> with the T in the lower right part of the display. >>>> >>>> CW was working fine until I went to 2m and then returned back >>>> to 6m and then subsequently to HF. All other modes are working >>>> fine. >>>> >>>> Any thoughts or ideas of what I have done would be helpful. >>>> >>>> Thanks, >>>> >>>> Keith >>>> AK6ZZ >>>> >>>> -Original Message- From: Ham Radio >>>> Sent: Sunday, February 23, 2014 7:46 PM >>>> To: Elecraft Group >>>> Subject: Re: [Elecraft] K3 issue in CW mode >>>> >>>> I figured out the + now looking to get rid of the T. >>>> >>>> Keith >>>> AK6ZZ >>>> >>>> -Original Message- From: Keith Heimbold >>>> Sent: Sunday, February 23, 2014 6:12 PM >>>> To: Elecraft Group >>>> Subject: [Elecraft] K3 issue in CW mode >>>> >>>> I just turned on my 2m transverter and when I went back to 6m >>>> my CW doesn't >>>> work. The display shows + and T and I don't get any power out >>>> in CW. Other >>>> modes work fine. I looked at instructions but couldn't figure >>>> it out. >>>> >>>> Keith >>>> AK6ZZ >>>> >>>> Sent from my iPhone please excuse typos >>>> __ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: >>>> http://mailman.qth.net/mmfaq.htm Post: >>>> mailto:Elecraft@mailman.qth.net >>>> >>>> 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:Elecraft@mailman.qth.net >>>> >>>> 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:Elecraft@mailman.qth.net >>>> >>>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
PS, disregard my last -- not enough coffee. Joel was correct on that and it would have been the "TX" that was flashing if it were in the "TEST" mode -- my bad. Jim - W0EB > Turn on VOX... > > ...bill nr4c > > Sent from my Verizon Wireless 4G LTE DROID > > Joel Black wrote: > >> I think the "T" just indicates CW decode. Hold the TEXT DEC >> button and then rotate the VFO B knob until you get OFF in the >> VFO B section of the display. >> >> 73, >> Joel - W4JBB >> >> On 2/23/14, 10:44 PM, Ham Radio wrote: >>> In CW mode it still will not get any power out and I am stuck >>> with the T in the lower right part of the display. >>> >>> CW was working fine until I went to 2m and then returned back >>> to 6m and then subsequently to HF. All other modes are working >>> fine. >>> >>> Any thoughts or ideas of what I have done would be helpful. >>> >>> Thanks, >>> >>> Keith >>> AK6ZZ >>> >>> -Original Message- From: Ham Radio >>> Sent: Sunday, February 23, 2014 7:46 PM >>> To: Elecraft Group >>> Subject: Re: [Elecraft] K3 issue in CW mode >>> >>> I figured out the + now looking to get rid of the T. >>> >>> Keith >>> AK6ZZ >>> >>> -Original Message- From: Keith Heimbold >>> Sent: Sunday, February 23, 2014 6:12 PM >>> To: Elecraft Group >>> Subject: [Elecraft] K3 issue in CW mode >>> >>> I just turned on my 2m transverter and when I went back to 6m >>> my CW doesn't >>> work. The display shows + and T and I don't get any power out >>> in CW. Other >>> modes work fine. I looked at instructions but couldn't figure >>> it out. >>> >>> Keith >>> AK6ZZ >>> >>> Sent from my iPhone please excuse typos >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: >>> http://mailman.qth.net/mmfaq.htm Post: >>> mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
Nope, if the T is showing, the rig is in "TEST" mode. Hold down the right hand portion of the MODE switch until it goes away and it'll put out power again. Jim - W0EB > Turn on VOX... > > ...bill nr4c > > Sent from my Verizon Wireless 4G LTE DROID > > Joel Black wrote: > >> I think the "T" just indicates CW decode. Hold the TEXT DEC >> button and then rotate the VFO B knob until you get OFF in the >> VFO B section of the display. >> >> 73, >> Joel - W4JBB >> >> On 2/23/14, 10:44 PM, Ham Radio wrote: >>> In CW mode it still will not get any power out and I am stuck >>> with the T in the lower right part of the display. >>> >>> CW was working fine until I went to 2m and then returned back >>> to 6m and then subsequently to HF. All other modes are working >>> fine. >>> >>> Any thoughts or ideas of what I have done would be helpful. >>> >>> Thanks, >>> >>> Keith >>> AK6ZZ >>> >>> -Original Message- From: Ham Radio >>> Sent: Sunday, February 23, 2014 7:46 PM >>> To: Elecraft Group >>> Subject: Re: [Elecraft] K3 issue in CW mode >>> >>> I figured out the + now looking to get rid of the T. >>> >>> Keith >>> AK6ZZ >>> >>> -Original Message- From: Keith Heimbold >>> Sent: Sunday, February 23, 2014 6:12 PM >>> To: Elecraft Group >>> Subject: [Elecraft] K3 issue in CW mode >>> >>> I just turned on my 2m transverter and when I went back to 6m >>> my CW doesn't >>> work. The display shows + and T and I don't get any power out >>> in CW. Other >>> modes work fine. I looked at instructions but couldn't figure >>> it out. >>> >>> Keith >>> AK6ZZ >>> >>> Sent from my iPhone please excuse typos >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: >>> http://mailman.qth.net/mmfaq.htm Post: >>> mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
Nope, hold the TEST button (right hand portion of the MODE switch) until it goes away. the Flashing T indicates you have the rig in TEST mode which lets you use the keyer in CW mode without putting out any power. Jim - W0EB > Turn on VOX... > > ...bill nr4c > > Sent from my Verizon Wireless 4G LTE DROID > > Joel Black wrote: > >> I think the "T" just indicates CW decode. Hold the TEXT DEC >> button and then rotate the VFO B knob until you get OFF in the >> VFO B section of the display. >> >> 73, >> Joel - W4JBB >> >> On 2/23/14, 10:44 PM, Ham Radio wrote: >>> In CW mode it still will not get any power out and I am stuck >>> with the T in the lower right part of the display. >>> >>> CW was working fine until I went to 2m and then returned back >>> to 6m and then subsequently to HF. All other modes are working >>> fine. >>> >>> Any thoughts or ideas of what I have done would be helpful. >>> >>> Thanks, >>> >>> Keith >>> AK6ZZ >>> >>> -Original Message- From: Ham Radio >>> Sent: Sunday, February 23, 2014 7:46 PM >>> To: Elecraft Group >>> Subject: Re: [Elecraft] K3 issue in CW mode >>> >>> I figured out the + now looking to get rid of the T. >>> >>> Keith >>> AK6ZZ >>> >>> -Original Message- From: Keith Heimbold >>> Sent: Sunday, February 23, 2014 6:12 PM >>> To: Elecraft Group >>> Subject: [Elecraft] K3 issue in CW mode >>> >>> I just turned on my 2m transverter and when I went back to 6m >>> my CW doesn't >>> work. The display shows + and T and I don't get any power out >>> in CW. Other >>> modes work fine. I looked at instructions but couldn't figure >>> it out. >>> >>> Keith >>> AK6ZZ >>> >>> Sent from my iPhone please excuse typos >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: >>> http://mailman.qth.net/mmfaq.htm Post: >>> mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
Turn on VOX... ...bill nr4c Sent from my Verizon Wireless 4G LTE DROID Joel Black wrote: >I think the "T" just indicates CW decode. Hold the TEXT DEC button and >then rotate the VFO B knob until you get OFF in the VFO B section of the >display. > >73, >Joel - W4JBB > >On 2/23/14, 10:44 PM, Ham Radio wrote: >> In CW mode it still will not get any power out and I am stuck with the >> T in the lower right part of the display. >> >> CW was working fine until I went to 2m and then returned back to 6m >> and then subsequently to HF. All other modes are working fine. >> >> Any thoughts or ideas of what I have done would be helpful. >> >> Thanks, >> >> Keith >> AK6ZZ >> >> -Original Message- From: Ham Radio >> Sent: Sunday, February 23, 2014 7:46 PM >> To: Elecraft Group >> Subject: Re: [Elecraft] K3 issue in CW mode >> >> I figured out the + now looking to get rid of the T. >> >> Keith >> AK6ZZ >> >> -Original Message- From: Keith Heimbold >> Sent: Sunday, February 23, 2014 6:12 PM >> To: Elecraft Group >> Subject: [Elecraft] K3 issue in CW mode >> >> I just turned on my 2m transverter and when I went back to 6m my CW >> doesn't >> work. The display shows + and T and I don't get any power out in CW. >> Other >> modes work fine. I looked at instructions but couldn't figure it out. >> >> Keith >> AK6ZZ >> >> Sent from my iPhone please excuse typos >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > >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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
I think the "T" just indicates CW decode. Hold the TEXT DEC button and then rotate the VFO B knob until you get OFF in the VFO B section of the display. 73, Joel - W4JBB On 2/23/14, 10:44 PM, Ham Radio wrote: In CW mode it still will not get any power out and I am stuck with the T in the lower right part of the display. CW was working fine until I went to 2m and then returned back to 6m and then subsequently to HF. All other modes are working fine. Any thoughts or ideas of what I have done would be helpful. Thanks, Keith AK6ZZ -Original Message- From: Ham Radio Sent: Sunday, February 23, 2014 7:46 PM To: Elecraft Group Subject: Re: [Elecraft] K3 issue in CW mode I figured out the + now looking to get rid of the T. Keith AK6ZZ -Original Message- From: Keith Heimbold Sent: Sunday, February 23, 2014 6:12 PM To: Elecraft Group Subject: [Elecraft] K3 issue in CW mode I just turned on my 2m transverter and when I went back to 6m my CW doesn't work. The display shows + and T and I don't get any power out in CW. Other modes work fine. I looked at instructions but couldn't figure it out. Keith AK6ZZ Sent from my iPhone please excuse typos __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
In CW mode it still will not get any power out and I am stuck with the T in the lower right part of the display. CW was working fine until I went to 2m and then returned back to 6m and then subsequently to HF. All other modes are working fine. Any thoughts or ideas of what I have done would be helpful. Thanks, Keith AK6ZZ -Original Message- From: Ham Radio Sent: Sunday, February 23, 2014 7:46 PM To: Elecraft Group Subject: Re: [Elecraft] K3 issue in CW mode I figured out the + now looking to get rid of the T. Keith AK6ZZ -Original Message- From: Keith Heimbold Sent: Sunday, February 23, 2014 6:12 PM To: Elecraft Group Subject: [Elecraft] K3 issue in CW mode I just turned on my 2m transverter and when I went back to 6m my CW doesn't work. The display shows + and T and I don't get any power out in CW. Other modes work fine. I looked at instructions but couldn't figure it out. Keith AK6ZZ Sent from my iPhone please excuse typos __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue in CW mode
I figured out the + now looking to get rid of the T. Keith AK6ZZ -Original Message- From: Keith Heimbold Sent: Sunday, February 23, 2014 6:12 PM To: Elecraft Group Subject: [Elecraft] K3 issue in CW mode I just turned on my 2m transverter and when I went back to 6m my CW doesn't work. The display shows + and T and I don't get any power out in CW. Other modes work fine. I looked at instructions but couldn't figure it out. Keith AK6ZZ Sent from my iPhone please excuse typos __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 issue in CW mode
I just turned on my 2m transverter and when I went back to 6m my CW doesn't work. The display shows + and T and I don't get any power out in CW. Other modes work fine. I looked at instructions but couldn't figure it out. Keith AK6ZZ Sent from my iPhone please excuse typos __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - Issue/Oddity
This morning, I turned on my K3 for the first time in two months. Everything is OK, until I transmit (checking the SWR on my beam) My two inline watt meters say the match is 1.2 to one. The K3 thinks it is 3.3 to 1 with or without the tuner. The tuner does click and clack to match the (?) what ever it is matching...but the K3 always reports 3.3 to 1. Sowhat am I missing here or what is your opinion? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - issue after upgrade to latest versions of firmware.
Left my K3/P3 with ver MCU 4.42 running over the night - no freeze on the P3. Obvious my K3/P3 don't like the v. 4.47 :-( _ 73 de LA8AW - Odd-Egil _ On Tue, Dec 6, 2011 at 23:31, LA8AW wrote: > Last night I upgraded my K3 to MCU 4.47/DSP 2.73 and everything looked > fine. AGC stayed on when running HRD. > Today I notice that my P3 locks up (display freezes) when the rig has been > idle for a period of time. Has happend 7-8 times tonight. > The P3 has firmware 1.09. > > Turning the rig off/on - and everything is rolling again - for a period > of time. > > Going back to 4.42 > > _ > > 73 de LA8AW - Odd-Egil > _ > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - issue after upgrade to latest versions of firmware.
Last night I upgraded my K3 to MCU 4.47/DSP 2.73 and everything looked fine. AGC stayed on when running HRD. Today I notice that my P3 locks up (display freezes) when the rig has been idle for a period of time. Has happend 7-8 times tonight. The P3 has firmware 1.09. Turning the rig off/on - and everything is rolling again - for a period of time. Going back to 4.42 _ 73 de LA8AW - Odd-Egil _ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 issue with Keying
Properly operated, the K3 has a pristine CW signal, using a number stream from firmware to directly create the 15 KHz CW signal in the TX Digital to Analog Converter. Since all amplification/conversion is linear after that, the same signal emerges properly shaped at the antenna jack. The K3 has a constant and well deserved reputation for excellent CW that does not bother people even just a few hundred Hz away. There ARE ways to make a signal from a K3 or any other properly designed transceiver have key clicks at the antenna. They almost always involve an amplifier. Assuming (bad word) your power supply can actually supply a stiff 13.8 volts, a K3 with key clicks barefoot has something busted and needs to be sent back to Elecraft to get it diagnosed and repaired. 1) Probably the worst is to try and run break-in or semi-break-in into an amplifier whose internal relays cannot follow the speed of the CW. What then happens is hot-switching, where the relays are making and breaking contact during the sent signal. The extreme sharp edges of the RF made by the hard relay contacts of the amp will be heard well above and below signal. This is also capable of doing dreadful things to the amplifier, including destroying tubes, pi-networks, bandswitches, relays, meters, tube sockets, nearly anything except the input circuits and power supply. 2) The other biggie is to run 100 watts into anything other than a pair of 3-500Z or a 3CX1200A7 and let the amp ALC throttle back the K3 power on a baud by baud basis. This will generate clicks, because the ALC *MUST* quickly shut down power to protect tubes -- the pristine CW signal is being chopped ASAP to keep from toasting grids and turning your expensive final tubes into lamp fodder. DO NOT use amp ALC to set levels. Do that with the K3 power knob to set the proper level, and set your ALC levels somewhat above that ONLY to protect your tubes if you forget to back off going from running 100 watts barefoot to needing 60 watts to drive an amp. 3) If you tune well off your antenna's resonance without retuning, that will raise grid current, you will be operating your amp outside its linear zone. This will flat-top the signal, creating sharp edges to the CW envelope that are not there at the K3 output. 4) Aside from using an amp improperly, an amp can have a range of problems requiring repair or final replacement that will produce key clicks from a perfect signal on its input. These need to be separately diagnosed and fixed on their own merit. 73, Guy. On Fri, Mar 4, 2011 at 9:05 AM, JoshL wrote: > Has anyone had problems with KEY CLICKS > with K3 on CW > > Maybe reloading firmware is a good start ? > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 issue with Keying
Has anyone had problems with KEY CLICKS with K3 on CW Maybe reloading firmware is a good start ? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Issue with 3.11/2.15
Excellent. 73 and enjoy Gregg! Greg AB7R On May 3, 2009, at 10:51 AM, W6IZT wrote: > Reloaded the FW and the problem is resolved. thx > > -Original Message- > From: Gregory Fischer [mailto:a...@cablespeed.com] > Sent: Sunday, May 03, 2009 1:45 PM > To: mzil...@verizon.net > Cc: W6IZT; Elecraft > Subject: Re: [Elecraft] K3 Issue with 3.11/2.15 > > Don't forget to update ALL the files when going to the new firmware. > That includes the DSP files, FPF file and the DSP data tables. > > 73 > Greg > AB7R > > On May 3, 2009, at 10:36 AM, Matt Zilmer wrote: > >> Hi Gregg, >> >> I've been using 3.11/2.15 for some time and have never observed what >> you describe. >> >> You might want to try reloading the firmware to see if that helps. >> >> 73, >> matt W6NIA >> K3 #24 >> >> On Sun, 03 May 2009 13:33:05 -0400, you wrote: >> >>> K3 sn 47 >>> >>> I just upgraded to the latest fw and when I power up the radio I >>> get a brief >>> shrill audio tone, the S meter pegs at full scale with no rx audio. >>> After >>> about 10-15 seconds the rx recovers and appears to operate >>> normally. Is this >>> a know issue with this release? >>> >>> Gregg >>> W6IZT >>> >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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 incoming message. > Checked by AVG - www.avg.com > Version: 8.5.287 / Virus Database: 270.12.15/2093 - Release Date: > 05/02/09 > 14:23:00 > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Issue with 3.11/2.15
Reloaded the FW and the problem is resolved. thx -Original Message- From: Gregory Fischer [mailto:a...@cablespeed.com] Sent: Sunday, May 03, 2009 1:45 PM To: mzil...@verizon.net Cc: W6IZT; Elecraft Subject: Re: [Elecraft] K3 Issue with 3.11/2.15 Don't forget to update ALL the files when going to the new firmware. That includes the DSP files, FPF file and the DSP data tables. 73 Greg AB7R On May 3, 2009, at 10:36 AM, Matt Zilmer wrote: > Hi Gregg, > > I've been using 3.11/2.15 for some time and have never observed what > you describe. > > You might want to try reloading the firmware to see if that helps. > > 73, > matt W6NIA > K3 #24 > > On Sun, 03 May 2009 13:33:05 -0400, you wrote: > >> K3 sn 47 >> >> I just upgraded to the latest fw and when I power up the radio I >> get a brief >> shrill audio tone, the S meter pegs at full scale with no rx audio. >> After >> about 10-15 seconds the rx recovers and appears to operate >> normally. Is this >> a know issue with this release? >> >> Gregg >> W6IZT >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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 incoming message. Checked by AVG - www.avg.com Version: 8.5.287 / Virus Database: 270.12.15/2093 - Release Date: 05/02/09 14:23:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Issue with 3.11/2.15
Don't forget to update ALL the files when going to the new firmware. That includes the DSP files, FPF file and the DSP data tables. 73 Greg AB7R On May 3, 2009, at 10:36 AM, Matt Zilmer wrote: > Hi Gregg, > > I've been using 3.11/2.15 for some time and have never observed what > you describe. > > You might want to try reloading the firmware to see if that helps. > > 73, > matt W6NIA > K3 #24 > > On Sun, 03 May 2009 13:33:05 -0400, you wrote: > >> K3 sn 47 >> >> I just upgraded to the latest fw and when I power up the radio I >> get a brief >> shrill audio tone, the S meter pegs at full scale with no rx audio. >> After >> about 10-15 seconds the rx recovers and appears to operate >> normally. Is this >> a know issue with this release? >> >> Gregg >> W6IZT >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Issue with 3.11/2.15
Hi Gregg, I've been using 3.11/2.15 for some time and have never observed what you describe. You might want to try reloading the firmware to see if that helps. 73, matt W6NIA K3 #24 On Sun, 03 May 2009 13:33:05 -0400, you wrote: >K3 sn 47 > >I just upgraded to the latest fw and when I power up the radio I get a brief >shrill audio tone, the S meter pegs at full scale with no rx audio. After >about 10-15 seconds the rx recovers and appears to operate normally. Is this >a know issue with this release? > >Gregg >W6IZT > >__ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Issue with 3.11/2.15
K3 sn 47 I just upgraded to the latest fw and when I power up the radio I get a brief shrill audio tone, the S meter pegs at full scale with no rx audio. After about 10-15 seconds the rx recovers and appears to operate normally. Is this a know issue with this release? Gregg W6IZT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 issue with Monitor & VOX
I don't know if these are related or not, but #1 when using the monitor function I hear my own voice ON frequency, but I also hear an OFF frequency copy of my signal...like it's about 1 or 2 khz away. I have tried it with and without phones and with two different microphones (MD2 & Elecraft Pro Headset). If I give a whistle in to the mic I hear it off frequency. The higher I whistle, the lower the whistle from the monitor audio, and of course the lower I whistle the higher it is in frequency from the monitor audio. It's disconcerting to say the least and leads me to believe there is something not right. #2, I cannot get the VOX to work. With the VOX gain set as low as 1 or 2, any amount of mic gain causes it to go in to transmit and will not unkey until I turn the mic gain down completely (3 or so). I can turn the mic gain completely down, as well as the compression, put it in VOX mode, turn the mic gain up to 2 or 3 and it keys right away. this is with the VOX gain set at about 2 or 3 as well. I pulled the front panel off and checked for bent pins, as Gary suggested. Did not find anything wrong. Anyone have any idea?? Stan W5EWA Houston, TX David Cutter <[EMAIL PROTECTED]> wrote: I insist on putting a fuse on each battery terminal, preferably fixed right to the terminal. The additional voltage drop is worth the peace of mind. Car radio shops have big chunky ones at modest prices. David G3UNA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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: Elecraft@mailman.qth.net 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
