RFX900 MIMO on old usrp, gives failed to set frequency

GNU Radio
1

Hi all,
I am trying to use an RFX900 MIMO on an old usrp board (rev 3 serial
309)
this doesn’t seem to work.
(Failed to set frequency)

when I try it on a rev 4.1 board all works fine.

Are the old rev 3 usrps not able to supply the 64 Mhz to the RFX or is
there some other problem?

Greetings,
Martin

2

Martin D. wrote:

Hi all,
I am trying to use an RFX900 MIMO on an old usrp board (rev 3 serial 309)
this doesn’t seem to work.
(Failed to set frequency)

when I try it on a rev 4.1 board all works fine.

Are the old rev 3 usrps not able to supply the 64 Mhz to the RFX or is there some other problem?

That is exactly the problem. You need to make the previously mentioned
mods to make the board work with the old USRPs (serial # <500)

Matt