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Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] 4 RX with 2 WBXs?
Date: Fri, 10 Sep 2010 15:22:05 -0400
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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 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.

_______________________________________________ Discuss-gnuradio mailing list address@hidden http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
No, you will not be able to make that work.  There are *not* two independant Rx paths within
 the WBX, only two different antenna ports, which you can switch the Rx chain between, but there
  is only 1 Rx chain.

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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