Earlier this week I was getting the K3 and computer software ready for theIARU contest this weekend. The rig was on 20m (14.030) were I was able to get an SWR around 1.4 and in that ball park from 14.000 to 14.060. This time when I did a software transmit check with N1MM contest software at 14.030 the SWR is now 2.18 Hmmmm. The other bands are up just a little bit but not as bad as 20m, we have had some very hot weather and I thought it was due to the hot weather maybe. I posted this question to Ham radio help at Yahoo groups. The consensus seemed to be that with this type of antenna the heat should not affect it. In the past the other antennas were not affected by the heat. I did go up and have a peak at the Alpha Delta DX-EE to make sure nothing had happened to any supports or the antenna itself and all is well. The resonant frequency seems to be a lot higher than it was. For example 20m's was resonate at 14.200 and it is now 14.350 and it is similar on all other bands as well. Seems on Friday after work I may have to go up in the attic and play with the length as well as sweat and loose some weight in the attic.