About MIMO-cable

GNU Radio
1

Hello everyone,

I’m curious about synchronising 2 USRP2 boards using MIMO-cable. Is
there
any firmware code, which supports transmitting and receiving signals
from
two USRP2s connected by MIMO-cable? Which blocks do I need to use in
GNURadio companion for it?

By the way, compared to setting ref. and PPS clock, which is the best
way
for setting up MIMO system?

Thanks in advance. :clap:

Best wishes,
Hongliang

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2

I am also interested in using the cable. We bought 10+ USRP2 and
several
MIMO cables, hoping to set up a MIMO network. But I have not figured
out
how to do that.

I read through Josh’s UHD MIMO announcement:
http://old.nabble.com/UHD-Announcement---July-6th-2010-tt29091756.html#a29276686

But still not sure if UHD works with MIMO cable (I understand it works
with
external ref, though ;).

Could any help us with this problem.

Thanks a lot!

Hongliang Zhang wrote:

Thanks in advance. :clap:

Best wishes,
Hongliang

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3

The serdes cable does not currently work with UHD other than to share
ref clocks. I am currently (as I type this email) working on the FPGA
routing logic to use the mimo cable with UHD. Don’t hold your breath,
but I am attempting to get it working before the holiday next week.

-Josh

4

Hi everyone,

I also have the same question about USRP2 with MIMO Cable. I found from
the
forum that it should program the SD card with new firmware, but I don’t
know
where to find the firmware code on the gnuradio wiki.

Doee anyone have any idea about this. Please let me know, thanks in
advance:)

Fisheep

Hongliang Zhang wrote:

Thanks in advance. :clap:

Best wishes,
Hongliang

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5

Hi Josh,

Wow~ I thought the cables would need to be thrown away since we don’t
know
how to use them. :wink:

Thanks a lot!!! I’m looking forward to your implementation!

Josh B.-2 wrote:

I am also interested in using the cable. We bought 10+ USRP2 and several
Could any help us with this problem.

there

[email protected]
Discuss-gnuradio Info Page

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