Joseph Crowley wrote:
Hey,
Just purchased a couple of RFX2400 transceiver dboards as well as a
couple of patch antennas (WA5JVB) and tried running the benchmark
program from one USRP to another (both mounted with the RFX boards).
However it didn’t seem to work. I tried looking for a spike using the
fft on the receiver USRP but found only a spike at 2.4GHz (from
surrounding wireless hardware) which didnt change during transmission
(using benchmark_tx.py). Was just wondering what the problem is if
anyone else has encountered it. i.e. is it a problem with the boards? Or
antenna? Or is it a problem with the benchmark script?
Thanks
-Joseph Crowley
You’ll have to provide more information than that. Which benchmark
script and what were the parameters? What was the setup of the
experiment (TX-RX distance)? Have you successfully run other GNU Radio
applications? Try usrp_siggen and usrp_fft.
Tom
The commands being used are:
./benchmark_tx.py -f 2.4G -T A --tx-amplitude=10000 -s 1000 -r 1 -v -M 5
./benchmark_rx.py -f 2.4G -R A -r 1 -v
used rate of 1 just to set to lowest possible bitrate (for gmsk 35 kb/s)
Distance have ranged between 1 - 2 metres.
When using usrp_fft.py on the receiver the transmitter Rf power is
showing on the display (pretty large >10db gain from the noise floor).
Problem now is the receiver is not receiving any packets.
Thanks
Joseph Crowley