With the following improvements:
1.The user buttons are changed to a rotary encoder, which makes the control more convenient and smooth.
2.New added RTC circuit, with real-time clock and perpetual calendar functions.
3.Optimize the S21 insertion loss/filter measurement performance, with a larger dynamic range.
Running firmware version: 1.0.4, new features:
1.Add RTC real-time clock, perpetual calendar function
2.The measurement data file name is in the form of YYMMDD_HHMMSS.
3.The frequency setting can choose the start and end or the center span mode.
4.The boot sound can be turned on or off.
Nominal Frequency: 10k - 1.5GHz
Scan Points: Up to 301 points