i started with such a frequency generator. Sold as FY6800 on ebay. Same specs i think. The device has one disadvantage. It's internaly not connected to earth. I was not able to use a octupus circuit with it because of missing earth connection. There was some strange noise i couldn't get rid off. i ended up buying a Rigol DG1022 which is ok for my needs. Later i found a trick to compensate the missing earth connection on the FY6800 by using 2 Y capacitors. But you have to change cuircuit design a bit. Not very safe i guess
Да, по 6800 Feeltech были отзывы плохие, поэтому и предыдущая модель и jansan