Hey all, I try to define amplitude for transient heat analysis. I used periodic and equally spaced data for 900 MHz and 1800 MHz. My model is exposed to heat flux once in every 0.00111*(10^6) seconds (900 MHz) or 0.000555*(10^6) seconds (1800 MHz). However, when I define them by periodic or equally spaced, results of 900 MHz are converge experimental results but 1800 MHz is not. Anybody has idea?