I recently bought a K2 (s/n 3873) with KAT2 module (f/w 1.06) on Ebay. The K2 is working well, but I'm not sure the KAT2 is. Here is what I get tuning into a 25 ft vertical wire with 16 ft counterpoise on the ground:
f SWR L C Net 3.540 1.2 18.2 0.66 N1 7.050 1.6 3.9 0.24 N1 10.106 1.1 1.6 0.05 N2 14.100 2.6 2.6 0.04 N1 18.089 1 1.9 0.15 N1 21.100 9.4 1.3 0.09 N1 24.900 1.1 1.2 0.1 N1 28.100 1.2 0.5 0 N1 My AA-230 analyzed this antenna this way: f SWR R X LC Z 3.54 19 465 -478 93pf 668 7.05 15 105 -252 89pf 273 10.106 4.2 166 85 1333nh 186 14.1 15 750 78 876nh 760 I can see that the antenna is pretty close to 1/2 wave for 15m so would be hard to tune to. And I can also see that the impedance of 760 ohms is very high for 20 meters, so maybe I can't expect an SWR of 2:1 when we're starting off at 15:1, but my KX1 gets 1.2:1 using the same inductance but .02 nF. Perhaps the 22 pf capacitor or relay is bad on the KAT2, but would welcome any comments. I do hear relay action as I move to each inductor, capacitor, n1, and n2. Thanks, Chip AE5KA ______________________________________________________________ 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
