I learned that when using the wsjt-x ft8 program,it is a wonderful program,BUT....you must be near the internet to work properly,however, you can run your laptop on the battery,but you must use a computer clock calibration system. I was checking the calibrations with NIST.GOV and click on settings and then it's done. I was doing this every other day, so I deleted it. The HRD,FLDIGI,ETC Do not need any calibrations. If and when there is another new WSJT-X program that is virus free that I can safely down load, then I will,but until now, it's HRD.