I reinstalled the trunk version of GNU Radio, and I was able to
successfully burn the RFX 2400 to MIMO A. The problem I have now is
that I cannot seem to get the daughterboard to tune on receive in either
a Rev 3 USRP or a Rev 4 USRP. I’ve verified that it is reporting MIMO A
in the USRP Diagnostics within GRC, but when I run usrp_fft.py on the
MIMO A board, I get “Failed to set initial frequency”.
I tried putting at MIMO A (side B) and a MIMO B (side A) RFX 2400 in a
single Rev 4 USRP. Interestingly, I am able to transmit a tone via a
MIMO A card and receive it in a MIMO B card. But I cannot receive the
tone transmitted by the MIMO B card on the MIMO A card due to this
“Failed to set initial frequency” problem. The MIMO B board’s tone is
fine. This is how I was testing them.
./usrp_fft.py -R B -d 256 -f 2.4375e9 -g 10 & ./usrp_siggen.py -f
2.437550e9 -i 512 --const -T A
When I burned the MIMO A card, I used the following command:
./usrp/host/apps/burn-db-eeprom -f -A -t rfx2400_mimo_a
Is there something I should check? I’m at a loss on how to proceed.
Any suggestions would be appreciated. Thank you.
John
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