I'm always looking in on the boards when I get a chance. I feel I have to sometimes in order to disseminate your scam.
Let me see. Yep 915MHz is within 1475MHz range of 2450MHz and within the best range of exciting water molecules. In fact it's not bad at another 1475MHz above 2450MHz. However the best bang for the H2O buck is centered at 2450MHz BUT still a far cry from the much, much higher frequencies offering the best bang for the hydrocarbon buck. I know you'll never understand measurements of dielectric properties. Maybe you can take the time to go back to school instead of wasting away your time on these boards.