K3 RX issue with KAT3A?
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K3 RX issue with KAT3A?
 
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Gents,
in spring I made an upgrade to my K3 (#59xx) with the internal ATU KAT3A. After this I guessed that there is a noise drop on all bands from 160 up to 10, but was not 100% sure. The strange thing: neighbor stations with similar setup always gave much better reports than me, at least 10 dB better. I was struggling a lot with my antennas, checked coax every now and than etc. but everything was o.k. At that time my main RX became suspicious. Last week I bought a K3/10W (#39++) from a local ham as a backup here in my shack. Comparing both rigs shows a huge difference in sensitivity. Very weak signals, almost in the noise on 10 Meters are clearly audible in the freshly bought K3 while there's almost nil on my old one. So i fired up my HP8664A signal generator today and found my old K3 to be at least 9dB worst compared to new one. This is for the main RX in my old K3 while the second RX iny my old K3 is almost similar to the new K3 when fed through the AUX input (not through ANT 1!!). So whats going on here? Something broken in my old K3 when I made the upgrade with KAT3A? Wrong wired? I have no idea, perhaps you got one? Udo, DK5YA -- ****************************************** Webs by DK5YA: * http://www.mmmonvhf.de/ [editor]* http://www.vhfdx.de/ [owner] * http://www.palekastro.de/ [owner] * http://www.solweb.de/ [owner] * http://www.spessartwetter.de/ [owner] * ****************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Use the K3 utility to save the config from the "Good" K3, then use the same
utility to save the config from the "suspect" K3. Finally use the K3 Utility to restore the config from the "good" K3 into the "suspect" K3 and retest. If that doesn't fix the issue then I'd start double checking the connections per the assembly manual. Jerry Moore CDXA, INDEXA, SKCC, Fists AE4PB, K3S - S.N. 010324 http://www.qrz.com/db/AE4PB An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and Patriotic. -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Udo Langenohl - DK5YA Sent: Monday, November 02, 2015 10:19 AM To: [hidden email] Subject: [Elecraft] K3 RX issue with KAT3A? Gents, in spring I made an upgrade to my K3 (#59xx) with the internal ATU KAT3A. After this I guessed that there is a noise drop on all bands from 160 up to 10, but was not 100% sure. The strange thing: neighbor stations with similar setup always gave much better reports than me, at least 10 dB better. I was struggling a lot with my antennas, checked coax every now and than etc. but everything was o.k. At that time my main RX became suspicious. Last week I bought a K3/10W (#39++) from a local ham as a backup here in my shack. Comparing both rigs shows a huge difference in sensitivity. Very weak signals, almost in the noise on 10 Meters are clearly audible in the freshly bought K3 while there's almost nil on my old one. So i fired up my HP8664A signal generator today and found my old K3 to be at least 9dB worst compared to new one. This is for the main RX in my old K3 while the second RX iny my old K3 is almost similar to the new K3 when fed through the AUX input (not through ANT 1!!). So whats going on here? Something broken in my old K3 when I made the upgrade with KAT3A? Wrong wired? I have no idea, perhaps you got one? Udo, DK5YA -- ****************************************** Webs by DK5YA: * http://www.mmmonvhf.de/ [editor]* http://www.vhfdx.de/ [owner] * http://www.palekastro.de/ [owner] * http://www.solweb.de/ [owner] * http://www.spessartwetter.de/ [owner] * ****************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Udo Langenohl - DK5YA
Adding the KAT3A gives you the possibility to be listening to a coax jack
with no antenna connected. To get started... Make sure that CONFIG: KAT3 is *not* set to "not inst". Be certain of that by hitting the "ANT" and "RXANT" buttons that you are on the coax connector you intend. After that there is the possibility that connecting the mini-coax you may not have seated the mini-coax connectors correctly. When fully seated, the little tabs on the connectors should be nearly up to the shoulder of the mini-coax jacks. 73, Guy K2AV On Mon, Nov 2, 2015 at 10:18 AM, Udo Langenohl - DK5YA <[hidden email]> wrote: > Gents, > > in spring I made an upgrade to my K3 (#59xx) with the internal ATU KAT3A. > After this I guessed that there is a noise drop on all bands from 160 up to > 10, but was not 100% sure. The strange thing: neighbor stations with > similar setup always gave much better reports than me, at least 10 dB > better. I was struggling a lot with my antennas, checked coax every now and > than etc. but everything was o.k. At that time my main RX became suspicious. > > Last week I bought a K3/10W (#39++) from a local ham as a backup here in > my shack. Comparing both rigs shows a huge difference in sensitivity. Very > weak signals, almost in the noise on 10 Meters are clearly audible in the > freshly bought K3 while there's almost nil on my old one. So i fired up my > HP8664A signal generator today and found my old K3 to be at least 9dB worst > compared to new one. This is for the main RX in my old K3 while the second > RX iny my old K3 is almost similar to the new K3 when fed through the AUX > input (not through ANT 1!!). > > So whats going on here? Something broken in my old K3 when I made the > upgrade with KAT3A? Wrong wired? I have no idea, perhaps you got one? > > Udo, DK5YA > -- > ****************************************** > Webs by DK5YA: * > http://www.mmmonvhf.de/ [editor]* > http://www.vhfdx.de/ [owner] * > http://www.palekastro.de/ [owner] * > http://www.solweb.de/ [owner] * > http://www.spessartwetter.de/ [owner] * > ****************************************** > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by ae4pb
Jerry and Udo,
You can't save the configuration file from one K3 and then load it into another K3. The configuration file contains the serial number and calibration information specific to the K3 you're saving the configuration file for. I think you can print out the configuration files for each K3 and compare them. Then change only the parameters that are not K3 specific. There was an earlier thread that addressed a possible way to remove the specific K3 information from the configuration file and only load the non K3 specific parameters. I don't remember the details or even if it was determined that it was possible. You will have to search the archives. Hope you find the solution. 73, Mark, WB9CIF K3-3505 and K3-7436 -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of [hidden email] Sent: Monday, November 2, 2015 5:09 PM To: 'Udo Langenohl - DK5YA' <[hidden email]>; [hidden email] Subject: Re: [Elecraft] K3 RX issue with KAT3A? Use the K3 utility to save the config from the "Good" K3, then use the same utility to save the config from the "suspect" K3. Finally use the K3 Utility to restore the config from the "good" K3 into the "suspect" K3 and retest. If that doesn't fix the issue then I'd start double checking the connections per the assembly manual. Jerry Moore CDXA, INDEXA, SKCC, Fists AE4PB, K3S - S.N. 010324 http://www.qrz.com/db/AE4PB An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and Patriotic. -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Udo Langenohl - DK5YA Sent: Monday, November 02, 2015 10:19 AM To: [hidden email] Subject: [Elecraft] K3 RX issue with KAT3A? Gents, in spring I made an upgrade to my K3 (#59xx) with the internal ATU KAT3A. After this I guessed that there is a noise drop on all bands from 160 up to 10, but was not 100% sure. The strange thing: neighbor stations with similar setup always gave much better reports than me, at least 10 dB better. I was struggling a lot with my antennas, checked coax every now and than etc. but everything was o.k. At that time my main RX became suspicious. Last week I bought a K3/10W (#39++) from a local ham as a backup here in my shack. Comparing both rigs shows a huge difference in sensitivity. Very weak signals, almost in the noise on 10 Meters are clearly audible in the freshly bought K3 while there's almost nil on my old one. So i fired up my HP8664A signal generator today and found my old K3 to be at least 9dB worst compared to new one. This is for the main RX in my old K3 while the second RX iny my old K3 is almost similar to the new K3 when fed through the AUX input (not through ANT 1!!). So whats going on here? Something broken in my old K3 when I made the upgrade with KAT3A? Wrong wired? I have no idea, perhaps you got one? Udo, DK5YA -- ****************************************** Webs by DK5YA: * http://www.mmmonvhf.de/ [editor]* http://www.vhfdx.de/ [owner] * http://www.palekastro.de/ [owner] * http://www.solweb.de/ [owner] * http://www.spessartwetter.de/ [owner] * ****************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Ok, ty..
The only way I know of currently to save the settings out is to use HRD. I'm actually writing a program in my spare time to see if I can write a utility to read/write configs specifically for this purpose. Jer Jerry Moore CDXA, INDEXA, SKCC, Fists AE4PB, K3S - S.N. 010324 http://www.qrz.com/db/AE4PB An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and Patriotic. -----Original Message----- From: Mark E. Musick [mailto:[hidden email]] Sent: Monday, November 02, 2015 1:32 PM To: [hidden email]; 'Udo Langenohl - DK5YA'; [hidden email] Subject: RE: [Elecraft] K3 RX issue with KAT3A? Jerry and Udo, You can't save the configuration file from one K3 and then load it into another K3. The configuration file contains the serial number and calibration information specific to the K3 you're saving the configuration file for. I think you can print out the configuration files for each K3 and compare them. Then change only the parameters that are not K3 specific. There was an earlier thread that addressed a possible way to remove the specific K3 information from the configuration file and only load the non K3 specific parameters. I don't remember the details or even if it was determined that it was possible. You will have to search the archives. Hope you find the solution. 73, Mark, WB9CIF K3-3505 and K3-7436 -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of [hidden email] Sent: Monday, November 2, 2015 5:09 PM To: 'Udo Langenohl - DK5YA' <[hidden email]>; [hidden email] Subject: Re: [Elecraft] K3 RX issue with KAT3A? Use the K3 utility to save the config from the "Good" K3, then use the same utility to save the config from the "suspect" K3. Finally use the K3 Utility to restore the config from the "good" K3 into the "suspect" K3 and retest. If that doesn't fix the issue then I'd start double checking the connections per the assembly manual. Jerry Moore CDXA, INDEXA, SKCC, Fists AE4PB, K3S - S.N. 010324 http://www.qrz.com/db/AE4PB An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and Patriotic. -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Udo Langenohl - DK5YA Sent: Monday, November 02, 2015 10:19 AM To: [hidden email] Subject: [Elecraft] K3 RX issue with KAT3A? Gents, in spring I made an upgrade to my K3 (#59xx) with the internal ATU KAT3A. After this I guessed that there is a noise drop on all bands from 160 up to 10, but was not 100% sure. The strange thing: neighbor stations with similar setup always gave much better reports than me, at least 10 dB better. I was struggling a lot with my antennas, checked coax every now and than etc. but everything was o.k. At that time my main RX became suspicious. Last week I bought a K3/10W (#39++) from a local ham as a backup here in my shack. Comparing both rigs shows a huge difference in sensitivity. Very weak signals, almost in the noise on 10 Meters are clearly audible in the freshly bought K3 while there's almost nil on my old one. So i fired up my HP8664A signal generator today and found my old K3 to be at least 9dB worst compared to new one. This is for the main RX in my old K3 while the second RX iny my old K3 is almost similar to the new K3 when fed through the AUX input (not through ANT 1!!). So whats going on here? Something broken in my old K3 when I made the upgrade with KAT3A? Wrong wired? I have no idea, perhaps you got one? Udo, DK5YA -- ****************************************** Webs by DK5YA: * http://www.mmmonvhf.de/ [editor]* http://www.vhfdx.de/ [owner] * http://www.palekastro.de/ [owner] * http://www.solweb.de/ [owner] * http://www.spessartwetter.de/ [owner] * ****************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: K3 RX issue with KAT3A?
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In reply to this post by Udo Langenohl - DK5YA
The suspect was pursued, caught, arrested and taken to the garbage with
the soldering iron. It was a defective pin diode that caused the loss of 10 dB. Thanks to all who have given me advice. 73 Udo, DK5YA Am 02.11.2015 um 16:18 schrieb Udo Langenohl - DK5YA: > Gents, > > in spring I made an upgrade to my K3 (#59xx) with the internal ATU > KAT3A. After this I guessed that there is a noise drop on all bands from > 160 up to 10, but was not 100% sure. The strange thing: neighbor > stations with similar setup always gave much better reports than me, at > least 10 dB better. I was struggling a lot with my antennas, checked > coax every now and than etc. but everything was o.k. At that time my > main RX became suspicious. > > Last week I bought a K3/10W (#39++) from a local ham as a backup here in > my shack. Comparing both rigs shows a huge difference in sensitivity. > Very weak signals, almost in the noise on 10 Meters are clearly audible > in the freshly bought K3 while there's almost nil on my old one. So i > fired up my HP8664A signal generator today and found my old K3 to be at > least 9dB worst compared to new one. This is for the main RX in my old > K3 while the second RX iny my old K3 is almost similar to the new K3 > when fed through the AUX input (not through ANT 1!!). > > So whats going on here? Something broken in my old K3 when I made the > upgrade with KAT3A? Wrong wired? I have no idea, perhaps you got one? > > Udo, DK5YA Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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