Having enjoyed GNU Radio for several months, I’ve got two ideas to make
improvement on USRP.
As I know, making daughterboard synchronized to the mother boards and
synchronization of several motherboard will need a little modification
the boards. That is to change the locations of some resistors and
In the further revison of USRP, I think it’s better to place some
boards for setting clock ralations between the boards. That’ll be much
Another suggestion is that USB 2.0 is not fast enough for some
Maybe in the future, It can be replaced by faster interface such as
Ethernet, 1394 or even PCI iterface.