Shawn Fei

Got and fixed, THANKS!

input 1KHz single, frequency measure result is 1.25KHz。 It only happened when use 2M or 5M pts and input frequence lower than 5KHz. 
But when the input single up to about 5KHz and above, measure result is ok, include 2M or 5M pts.
Is it a common problem or just my TBS2104X's problem?