On 09/01/2016 10:05 PM, Hasini Abeywickrama wrote:
Hi Dan,
I have tried different gain values from 0 to 20.
On the TX side, the B2xx have about 90dB of gain-control range.
On the RX side, about 80dB of gain-control range. Assuming these are
NOT directly connected, crank the gains up.
Start with 40dB on the TX side and 40dB on the RX side.
On Fri, Sep 2, 2016 at 9:35 AM, Dan CaJacob <[email protected]
<mailto:[email protected]>> wrote:
What gain are you using?
On Thu, Sep 1, 2016 at 7:32 PM Hasini Abeywickrama
<[email protected] <mailto:[email protected]>> wrote:
Hi Derek,
Thank you for suggesting the USRP-users mailing list. I will
try that too.
I have tried a simple waveform too and that is not being
received too. Yes the TX LED and the RX LED are lit when the
flow graphs are running.
I am trying to figure out what the problem might be. Is it
necessary to supply power to the USRP B200 when transmitting?
Regards,
Hasini
On Thu, Sep 1, 2016 at 4:49 PM, Derek Kozel
<[email protected] <mailto:[email protected]>> wrote:
Hello Hasini,
The USRP-users mailing list is an excellent place to ask
such questions.
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
<http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>
I do not have experience with the dpsk flowgraphs. Have
you verified that you can see a simple sinewave from one
B200 to another? uhd_fft and uhd_siggen_gui are excellent
tools for testing that. When transmitting with the B200,
do you see the TX LED come on and the RX LED on the other one?
Thanks,
Derek
On Wed, Aug 31, 2016 at 10:31 PM, Hasini Abeywickrama
<[email protected] <mailto:[email protected]>> wrote:
Hi,
I have a USRP B200 set to transmit a signal (using
uhd_tx_dpsk.grc in the GNURadio examples) and another
USRP B200 receive the signal (using uhd_rx_dpsk.grc in
the GNURadio examples). But the receiving USRP does
not receive the signal that is being transmitted by
the other USRP, even though they are placed very close
to each other.
If I user a USRP2 as the transmitter the receiver can
receive the signal without any issue.
Can someone please suggest what might be the problem
with this. (Please excuse if this is not directly
related to GNU Radio)
Cheers
Hasini
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--
Very Respectfully,
Dan CaJacob
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