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Re: [Discuss-gnuradio] daughterboard performance
From: |
Marcus D. Leech |
Subject: |
Re: [Discuss-gnuradio] daughterboard performance |
Date: |
Thu, 17 Feb 2011 23:42:34 -0500 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 |
> Hi
>
> I used XCVR2450 daughterboard for TX and RX on USRP2 and everything is
> fine.
> Recently I began to use RFX2400 and DBSRX-LF, which I found out the
> performance are much worse than XCVR2450.
> Observed from FFT plot, I found out there are some weird spectrum
> response using RFX2400 and DBSRX-LF respectively.
> Furthermore, I am not able to decode some OFDM example anymore! (I
> compensated the correct carrier frequency already)
>
> I am wondering if I need to update something like firmware, in order
> to use those two new daughterboards.
> Thanks,
You haven't given us much to go on.
What does your test setup look like? Are you using USRP1? USRP2?
USRP-N210? Using UHD?
Are you tests over-the-air or with cables? Are you using attenuators in
the cabling?
--
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org