[Discuss-gnuradio] multiple antennas and multiple usrps

[Dan Halperin]

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Two not-that-related questions... but here goes.

1) I notice that multi-antenna.py claims to only work with the BasicRX  
boards. Any reason I can't use the 2 RX paths on each of 2 RFX2400s  
assuming the d'board is powered up and configured correctly?

2) I have a transmitter USRP and a receiver USRP attached to the same  
machine. I use usrp.serial_number() as suggested by Eric in many  
previous mails to distinguish between them. I have a code loop like  
this:

which = 0
self.u = usrp.source_c(which, <blah>)
while self.u.serial_number() != "RX Serial":
    del self.u
    which += 1
    self.u = usrp.source_c(which, <blah>)

and the analogous loop in the transmitter code. If I start the program  
that runs USRP #1 first, then this works fine; if I start the program  
that runs USRP #0 first, then when the other gnu radio script opens  
USRP #0 again, finds the wrong SN, and then opens #1, the  
functionality of USRP #0 breaks. (I think). For instance, I can't Ctrl- 
C out of usrp_siggen.py any more if it's the transmitter running on  
USRP #0.

Any suggestions?

Thanks,

Dan
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