Re: [Elecraft] [KX1] KX1 ATU problem
Well I figured out my problem (operator error). The ATU was in Calibrate mode and not Tune mode. So it is working now. However, when I try to tune 30m the power jumps straight to 6.3W (!) and doesn't fluctuate like the power reading does on other bands (40m jumps from around 4.6-5.1 watts with a 12v supply) Not to mention that the ATU gives me a somewhat poor SWR (1:2.8) on 30m even when it used to match relatively well (1:2). I don't currently use 30m so it's not a big deal to me but something doesn't seem right...? Luke KD0FIN KD0FIN wrote: So I just installed the KXB3080 and completed the 2 resistor power mod but now my ATU doesn't seem to be working. It gives me power and SWR reading when I use the tune function but I don't hear the relays clicking and it isn't matching anything anymore. It might be unrelated but also it seems to be very hard to find signals as well. I could hear a couple faint ones on 80m but everything else seemed dead. The radio was working as normally as I could tell after installing the KXB3080, and I don't think I could have screwed up the the 2 resistors enough to cause any problems? -- View this message in context: http://n2.nabble.com/KX1-ATU-problem-tp4149575p4152762.html Sent from the [KX1] mailing list archive at Nabble.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
Re: [Elecraft] [KX1] KX1 ATU problem
Is it possible that you upgraded the firmware when you added the KXB3080? If so, the menu entries are set to default, and that means it is set to ATU CAL - check the menu. 73, Don W3FPR KD0FIN wrote: So I just installed the KXB3080 and completed the 2 resistor power mod but now my ATU doesn't seem to be working. It gives me power and SWR reading when I use the tune function but I don't hear the relays clicking and it isn't matching anything anymore. It might be unrelated but also it seems to be very hard to find signals as well. I could hear a couple faint ones on 80m but everything else seemed dead. The radio was working as normally as I could tell after installing the KXB3080, and I don't think I could have screwed up the the 2 resistors enough to cause any problems? No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.709 / Virus Database: 270.14.103/2558 - Release Date: 12/11/09 05:06:00 __ 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] [KX1] KX1 ATU problem
Luke, I believe 6.3 W is the maximum that is displayed by the KX1 (that often is the power level indicated when I am calibrating the tuner wattmeter for an SWR=2.0 with my 100 ohm dummy load attached. So what 6.3 W indicated usually means is that you are trying to operate into an open circuit or a very high impedance. Think about what changes may have occurred to your antenna on 30 meters since the last time you checked - are you using the same length feedline? (as one example of how a change can easily creep in). I doubt it is the tuner. You can check the tuner by tuning into a dummy load - try that and see if it works, and if so, take a critical look at your antenna. 73, Don W3FPR KD0FIN wrote: Well I figured out my problem (operator error). The ATU was in Calibrate mode and not Tune mode. So it is working now. However, when I try to tune 30m the power jumps straight to 6.3W (!) and doesn't fluctuate like the power reading does on other bands (40m jumps from around 4.6-5.1 watts with a 12v supply) Not to mention that the ATU gives me a somewhat poor SWR (1:2.8) on 30m even when it used to match relatively well (1:2). I don't currently use 30m so it's not a big deal to me but something doesn't seem right...? Luke KD0FIN KD0FIN wrote: So I just installed the KXB3080 and completed the 2 resistor power mod but now my ATU doesn't seem to be working. It gives me power and SWR reading when I use the tune function but I don't hear the relays clicking and it isn't matching anything anymore. It might be unrelated but also it seems to be very hard to find signals as well. I could hear a couple faint ones on 80m but everything else seemed dead. The radio was working as normally as I could tell after installing the KXB3080, and I don't think I could have screwed up the the 2 resistors enough to cause any problems? No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.709 / Virus Database: 270.14.103/2558 - Release Date: 12/11/09 05:06:00 __ 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
