KX2 Utility & Linux
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I run Linux Mint 19.2 (Tina) and have installed the Linux KX2 utility. I have successfully created a rule so that the KX2 is recognized on /dev/ttyUSB0 by the OS. The program, however, will not open the port so it does not “see” the radio as connected. I have tried several online suggested solutions to no success. Any advice?
(I have been successful in getting Windows NetLogger to run under WINE, if any Linux user is interested!) Keeping Watch- shu Joe Shuman, KE8KJZ ______________________________________________________________ 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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73, Peter (PA0PJE) Hi Joe, Did you add yourself in the group "dialout"? Control Center > Users and Groups > 'your user name' > Manage groups > Scroll to dialout, select it and click 'properties' then tick the box in front of your username. Click ok, enter your admin password, log off and back on again. Then try the connection again. Hoipe this works for you, it did for me! Good luck. 73 Peter PA0PJE Op 01-12-2019 om 21:14 schreef Joseph Shuman via Elecraft: > I run Linux Mint 19.2 (Tina) and have installed the Linux KX2 utility. I have successfully created a rule so that the KX2 is recognized on /dev/ttyUSB0 by the OS. The program, however, will not open the port so it does not “see” the radio as connected. I have tried several online suggested solutions to no success. Any advice? > > (I have been successful in getting Windows NetLogger to run under WINE, if any Linux user is interested!) > > Keeping Watch- > shu > > Joe Shuman, KE8KJZ > ______________________________________________________________ > 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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Hello all.
I have a dual diversity Xpol EME system for 2m and a dual coherent transverter. I am trying to calculate if I have enough gain available in the transverter to split the output 4 ways with a loss of approximately 6dB. The K3S has an MDS of -138dBm in a 500Hz bandwidth which is approximately 9dB noise figure with preamp 1 switched on. Does the KRX3A have a an independent preamp1? I know that the preamp2 is a shared resource. What about preamp1? Many thanks in advance. Conrad PA5Y ______________________________________________________________ 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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Conrad,
Assuming this is for 2m-eme, I would guess you have two preamps before the transverter which are adding gain and setting the system NF. If the preamp gain is approx 25 dB or higher, it will likely set the system NF as it has enough gain to overcome the NF of the transverter and K3S. I have a dual receive transverter that provides 28-MHz to both main and sub receivers in my K3. I tap the 1st IF of both receivers in the K3 to provide output to two coherent SDR that provide two IQ outputs to a four port soundcard and drives MAP65. My preamps provide 0.26 dB NF which has a MDS of -146.3 dBm with 500-Hz bw. The combination of the 0.8 dBNF transverter with 17-dB gain, and K3 only add 0.2 to the NF and lower MDS to -146.2 dBm. adding 6-dB loss after the transverter only raises NF to 0.30 dB. This is using 12 dBNF for the K3; lowering to 9-dB lowers system NF to 0.28 dB On 2m this is insignificant due sky noise and man-made noise having more effect on actual MDS. I used Tsky=250K in above calculations which is probably not achievable in today's RF environment. If I use Tsky=1000K, MDS drops to 141.2 dBm. 73, Ed - KL7UW Date: Mon, 2 Dec 2019 13:19:17 +0000 From: Conrad PA5Y <[hidden email]> To: "[hidden email]" <[hidden email]> Subject: [Elecraft] KRX3A sensitivity Hello all. I have a dual diversity Xpol EME system for 2m and a dual coherent transverter. I am trying to calculate if I have enough gain available in the transverter to split the output 4 ways with a loss of approximately 6dB. The K3S has an MDS of -138dBm in a 500Hz bandwidth which is approximately 9dB noise figure with preamp 1 switched on. Does the KRX3A have a an independent preamp1? I know that the preamp2 is a shared resource. What about preamp1? Many thanks in advance. Conrad PA5Y 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: [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 pa0pje
Just wanting to respond here and say that I was having similar trouble and this thread helped me work it out -- thank you Peter!
I had added my user to the "dialout" group but it didn't take effect until I had restarted my computer, which was the key. 73s all, Charlie KN6HLC |
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