Hi all, I narrowed down when the issue occurs.
When using separate sides of B210 for transmitting (i.e. TX/RX port on RF A side) and receiving (i.e. RX2 port on RF B side) everything is fine and B210 starts transmitting like i.e. X310. The problem appears when transmitting and receiving on the same side of B210 and it is dependent on what you connect to the TX port. The 300us transition appears if I don't connect anything and measure the TX-RX leakage or when VERT900 antenna from Ettus is connected. I tried also to connect a power splitter to the TX port and an antenna to one of the splitter's ports - with the same result. But as soon as I connected the 30dB attenuator to another port of the splitter, the problem immediately goes away. > The attenuator also has a path (resistive 50 ohms) to ground....an >antenna with a small pad on it (say 1 db) will probably work fine as well. > Kent Torell So you might be right here Kent that it was the path to the ground in the attenuator that changed how the output behaves. It is funny thought that the problem only appears when RX2 port on the same side of B210 is also used :). -- Best Regards, Piotr Krysik _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
