You display the J2K100 generator average AC frequency on a DSM150, DSM200, or DSM250 in the following way. Enter menu mode, scroll to "Favorite Screen Setup..." and press enter. Scroll to the favorite screen where you would like to view the frequency and press enter. Scroll to "Data:" and press enter. Scroll to "AC Power #x" where x is the instance you want to view (instance 2 might be the port generator and instance 3 might be the starboard generator) and press enter. Scroll to "Gen. Avg. AC Frequency" and press enter. Press the back key three times to exit menu mode and return to the normal viewing mode. Scroll through your screens to the favorite screen you selected for frequency.