Mike K8CN and I both came to the same conclusion overnight. Check the ATU in bypass mode! Using both RX ANT and forcing bypass via CAL_P, the sensitivity is back on 17m. I also notice smaller but still noticeable loss on 15m.
I didn't build this KAT2 myself but it seems to tune OK for TX on all bands. I guess it's time for some ATU troubleshooting but other ideas are appreciated. 73, Bill W4ZV Bill W4ZV wrote > During a SOTA activation Saturday I used 17m quite a bit as well as 15 and > 20. Sensitivity on 17m seemed weaker than on adjacent bands and I thought > it could be my antenna (44' doublet up 25' with 450 ohm ladder linie > through a BL1 4:1 and KAT2). > > Tonight I decided to check it with my XG3 and indeed the 1uV setting is > noticeably weaker than on 15 and 20. I first redid RX alignment of L10 > and L11 on 15m and then C32 and C34 for 17m with no improvement. The > S-meter reads the same for all 3 XG3 levels but 1uV sounds weaker on 17. > Anyone have any ideas? > > 73, Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-Sensitivity-on-17m-tp7575428p7575437.html Sent from the Elecraft 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
