Hello, I do not believe I have a clone, I opened the SA up, and it had the version of 3.0,not 4.0,OK. Here is what I have, during the calibration, my SA will not make it past the 4th configuration I believe. Here is a -pic of the issue, does any one have a fix for this, as I tried a few things with the settings,with no luck. I cannot believe this has a issue, had this for a month, first time I am trying to learn this as I am aligning a CB radio,( and trying to figure the tinySA out on what to use and how? ) Any idas would be very appreciated. Thank you,Mark..