Latest firmware for SDG2000X has the following updates:
Release notes
Compatible with Rev.F hardware; if the hardware version is “05-xx-xx-xx-xx”, it will not support to roll back previous firmware version
Supported trig dual channel separated when use manual trigger.
Supported using another channel as the modulation source
Supported setting the output frequency after the completion of sweep
Counter add fast measurement mode
Changed the square waveform data used in square FM modulation
Has anyone tried the Counter add fast measurement mode ? What does it do?
A real shame they didn't add more digits to frequency setting...
Roger
I’ve found that this firmware update improves the frequency counter’s measurement update speed at the cost of making the counter unusable. I’ll explain.
The upside: The frequency counter now has two settings: “slow” and “fast”. The “slow” setting updates the counter’s screen at about 1 Hz, and the “fast” setting updates at around 4 Hz. This is a definite improvement over the previous, non-configurable update speed of about 0.5 Hz.
The downside: This firmware update has introduced a bug in which the longer the counter is both enabled and actively displayed on the screen, the less responsive the device’s user interface becomes (in terms of the latency between a key press and its effect). Eventually, the device becomes completely unresponsive and requires its power to be cycled in order to restore responsiveness. The degradation in responsiveness is directly proportional to the counter’s update speed setting—setting the counter to “fast” will degrade responsiveness faster than setting the counter to “slow”, to the point where one can observe key press latency increasing with each passing second.
This bug makes the frequency counter feature of this device nearly useless. Note that I have a “liberated” SDG2042X with Rev. C hardware (hardware version 02-02-00-40-00). Has anyone else encountered this pathological behavior?
Side note: the new ability to use the other channel as a modulation source is glorious! (Or, at least, appears to be so during my limited testing so far.)