I was wondering whether it is possible to receive from two different
antennas using a single usrp source and the SBX. I set the subdevices to
A:0
A:0 for the two channels. I set chanell 0 to TX/RX and chanel 1 to RX2.
Even
if i swap the antennas and the chanels it is always that RX2 is
receiving.
It workes fine if i set two different usrp sources one to TX/RX and the
other to RX2 but then i get overflows all the time.
There is only a single analog RX chain on the SBX, and it can only be
connected to either TX/RX or RX2
at any given time.
What you can do is take advantage of dual-DDC functions, if the two
frequencies you want to receive
are both within the analog bandwidth of the card, which is typically
40Mhz. There’s no requirement
that those two frequencies arrive on different antennae–physics
doesn’t care.
–
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
Alright!! Thats what we did at the end and it worked perfect!!! Although
i
think somehow they managed to destroy the daughterboard but thats
another
thread,