I am not sure whether the last email went through since the size of the
attachment was more than 100K.
Anyhow here is the attachment. Which shows my experiment results for
calculating IP3. I did make a mistake in interpreting my experiment datas
earlier. The IP3 seems to be only 10dBm for the Flex
Hi,
I've been browsing through the mailing list archives to find some
examples of simultaneous rx/tx but with no luck. I have two USRP's,
each equipped with RFX2400 and one antenna, attached to TX/RX. I would
like these two radios to talk to each other in an asynchronous fashion
- a radio can rece
1) When I run my scripts I sometimes get "uOuOuO" message. I read in the
archives that I need to increase the decimation rate but I have already
set it to the maximum limit of 256. What should I do? Also, why do I not
get the message all the time?
Hi,
A problem I had a while ago was tha
Thanks a lot Eric.
That's very useful. Yes, you are right about the preamble.
At this stage I am just doing the transmitter, later I will worry about
how to correctly receive it and will probably add a preamble.
Ed Criscuolo wrote:
karim wrote:
Hi,
I need to implement a simple transmitter
Jason Uher wrote:
I checked the benchmark_tx.py it adds a preamble and a lot of data before
the actual payload which I don't need.
I assume you are trying to do some BER measurements? There is an
example called digital-bert that will do that (bert=bit error rate
tester).
Actually I am not
Hi,
The installed openbts is not listed by
$ ls /usr/local/lib/pkgconfig
How is it possible to make sure that openbts is installed correctly and there
is a correct connection between openbts and gnuradio/USRP?
Thanks,
Hassan
___
Discuss-gnu
On Wed, Apr 08, 2009 at 03:43:26PM +0200, Ane Andersen wrote:
> >
> > Hi Eric
> I just tried flashing the SD ram as instructed on the web. It didn't change
> much. Now when I run the two scripts I randomly get either "segment fault"
> or some lines of traceback print with a runtimeerror "Unable to
karim wrote:
Hi,
I need to implement a simple transmitter that uses QPSK as the
demodulation mode. It should read data (characters) from a file and
transmit them as they are without preamble or anything.
What's the simplest and fastest way to do it.
I checked the benchmark_tx.py it adds a pre
> I checked the benchmark_tx.py it adds a preamble and a lot of data before
> the actual payload which I don't need.
I assume you are trying to do some BER measurements? There is an
example called digital-bert that will do that (bert=bit error rate
tester).
If you have some other goal in mind, I
>
> Hi Eric
I just tried flashing the SD ram as instructed on the web. It didn't change
much. Now when I run the two scripts I randomly get either "segment fault"
or some lines of traceback print with a runtimeerror "Unable to retrieve
daughterboard info. I also tried another USRP2 with newest FW.
Hi,
I need to implement a simple transmitter that uses QPSK as the
demodulation mode. It should read data (characters) from a file and
transmit them as they are without preamble or anything.
What's the simplest and fastest way to do it.
I checked the benchmark_tx.py it adds a preamble and a lo
Johnathan, you were right with the distortion issue at the TX, I am now using
these parameters:
./benchma-m dqpsk -f 1.25G -m dqpsk --tx-amplitude=500 -r 1M -M
--excess-bw=0.35
./benchmark_rx.py -r 1M -m dqpsk --log --costas-alpha=0.05 -S 4 --verbose -r
1M --gain-mu=0.01 --excess-bw=0.35
On Tue, Apr 07, 2009 at 10:32:20AM -0700, Rita's pfc wrote:
>
> Hi,
> I'm using benchmark_ofdm tx and rx in 2.4 GHz. I'm trying to transmit a
> fixed size of payload everytime (1328 Bytes). My problem is I don't know
> what values I must put in the parameters: fft-length, occupied-tones,
> cp-leng
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