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Hello,
in another thread was said, that the auto-tuner of the new Icom had a 3:1 VSWR. I was looking up and down the net and didn't find any comparable figures for the KxATu and the T1. I know that I can match a wet towel, so could someone enlighten me and give some numbers? 73 de Hajo DL1SDZ --- Cela est bien dit, mais il faut cultiver notre jardin. ______________________________________________________________ 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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Hajo,
The T1 tuner has a wide range. The total matching range will be greater on high bands and less on lower bands. Both the T1 and the KXAT1 (and other tuners) specify the matching range in terms of the maximum L and C available. That is a more exact way of stating the range than stating SWR capability. The KXAT1 is the most limited because it has only 3 inductors and 3 capacitors to choose from. It is optimized for the antenna shown in the KXAT1 manual. On 80 meters it may need some extra help with a series or parallel inductor or capacitor external to the tuner. If you are really ambitious, you could take the maximum inductance and capacity and run it through the formulas for an L network and obtain the matching capability for any frequency. The inductors are series elements and the capacitors are shunt elements which can be switched from either the input side or the output side. 73, Don W3FPR On 4/26/2016 1:50 PM, Hajo Dezelski wrote: > Hello, > > in another thread was said, that the auto-tuner of the new Icom had a 3:1 > VSWR. I was looking up and down the net and didn't find any comparable > figures for the KxATu and the T1. > > I know that I can match a wet towel, so could someone enlighten me and give > some numbers? > > ______________________________________________________________ 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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Thanks Don,
thanks for your prompt replay. I already thought, that it would not be so easy. So I have to understand the formula and afterwards will do the math ... this may take a while. 73 de Hajo DL1SDZ --- Cela est bien dit, mais il faut cultiver notre jardin. ______________________________________________________________ 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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