|Subject:||Re: [Discuss-gnuradio] 4 RX with 2 WBXs?|
|Date:||Fri, 10 Sep 2010 15:59:34 -0400|
On Fri, Sep 10, 2010 at 12:04 PM, Scott Storck <address@hidden> wrote:Scott,
> I have a USRP and two WBX daughterboards. Is it possible to use 4
> independent RX antennas (all tuned to the same frequency) with this hardware
The WBX has only one (I/Q) receiver per daughterboard. The two
Antenna ports (TX/RX and RX2) are for convenience to enable a single
Antenna on the TX/RX in half duplex or a dedicated RX antenna on RX2.
The WBX merely switches the input of a single RX chain between those
two antenna ports based on user settings.
So, only 2 receivers are possible with your USRP + 2 WBX setup
No, you will not be able to make that work. There are *not* two independant Rx paths withinI have a USRP and two WBX daughterboards. Is it possible to use 4 independent RX antennas (all tuned to the same frequency) with this hardware setup?
Specifically, here's what I'm trying to achieve:
Antenna 0 -> Side A WBX, RX/TX port -> ADC0 -> DDC0I
Antenna 1 -> Side A WBX, RX2 port -> ADC1 -> DDC1I
Antenna 2 -> Side B WBX, RX/TX port -> ADC2 -> DDC2I
Antenna 3 -> Side B WBX, RX2 port -> ADC3 -> DDC3I
I am trying to modify gnuradio-examples/python/multi-antenna/multi_fft.py to make this happen. I've got it running, but I can't seem to get the WBXs to use the antennas connected to their RX2 ports.
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