Trond Danielsen wrote:
Okay, I think I understand. But still, when inspecting the signal with
ursp_fft.py, the signal is not at baseband, but offset by approx.
500kHz
I use the DBS_RX for radio astronomy, and I use a narrowband calibration
signal (not from a precision source, but
within a few
Trond Danielsen wrote:
Okay, I think I understand. But still, when inspecting the signal with
ursp_fft.py, the signal is not at baseband, but offset by approx.
500kHz
KD7LMO's setup seems to bring L1 down to approx. -4kHz. At least the
signals I acquire are centered about -4kHz.
Chris
___
2007/3/27, Eric Blossom <[EMAIL PROTECTED]>:
> Okay, I think I understand. But still, when inspecting the signal with
> ursp_fft.py, the signal is not at baseband, but offset by approx.
> 500kHz
500 kHz seems excessive. Can you post a link to a screen shot?
I am not at the lab atm, but I'll p
On Tue, Mar 27, 2007 at 09:40:38PM +0200, Trond Danielsen wrote:
> 2007/3/27, Eric Blossom <[EMAIL PROTECTED]>:
> >On Tue, Mar 27, 2007 at 10:36:05AM +0200, Trond Danielsen wrote:
> >> Hi,
> >>
> >> I have a problem with my DBSRX daughterboard. I tried to send in a
> >> single carrier on 1.57542 GH
2007/3/27, Eric Blossom <[EMAIL PROTECTED]>:
On Tue, Mar 27, 2007 at 10:36:05AM +0200, Trond Danielsen wrote:
> Hi,
>
> I have a problem with my DBSRX daughterboard. I tried to send in a
> single carrier on 1.57542 GHz and watch it with usrp_fft.py, and I
> observe that the received signal is off
On Tue, Mar 27, 2007 at 12:29:13PM +0200, COLSON Nicolas RD-TECH-GRE wrote:
> Thanks for the answer.
>
> Would it be possible to have a look at the status report on what's
> done and what's left to be done for m-blocks. We may consider
> contributing to the code.
Thanks! See below.
> We are part
On Tue, Mar 27, 2007 at 10:36:05AM +0200, Trond Danielsen wrote:
> Hi,
>
> I have a problem with my DBSRX daughterboard. I tried to send in a
> single carrier on 1.57542 GHz and watch it with usrp_fft.py, and I
> observe that the received signal is offset by many KHz. This really
> does not come a
> In the long run- perhaps a python app that sits on a socket and
> changes the frequency at the command of the other side of the link,
So you want your GNU Radio transmitters to accept commands from
another program possibly running on another computer?
One Idea would be to leverage an existing
2007/3/27, Gregory W Heckler <[EMAIL PROTECTED]>:
Trond:
Tuning the down-converter on the DBS-RX card consists of programming the
values of 2 dividers. The R divider divides down the reference clock
frequency (4 MHz, which derives from the 64 MHz board clock). The N
divider divides down the LO f
Trond:
Tuning the down-converter on the DBS-RX card consists of programming the
values of 2 dividers. The R divider divides down the reference clock
frequency (4 MHz, which derives from the 64 MHz board clock). The N
divider divides down the LO frequency. The R divider has a range from 2
to 2
Hey everyone ,
im using a RFX2400 trying to workout benchmark_tx.py
here is what i get
./benchmark_tx.py --tx-subdev-spec=A --from-file=README --bitrate=500e3
--freq=2450e6 -v
>>> gr_fir_fff: using SSE
bits per symbol = 1
Gaussian filter bt = 0.35
Using TX d'board A: Flex 2400 Tx MIMO B
Tx amp
Thanks for the answer.
Would it be possible to have a look at the status report on what's done and
what's left to be done for m-blocks. We may consider contributing to the code.
We are particularly interested in:
- the metadata exchange for sending reconfiguration orders
- the interface with gr-bl
2007/3/26, Brett L. Trotter <[EMAIL PROTECTED]>:
In the long run- perhaps a python app that sits on a socket and changes the
frequency at the command of the other side of the link, which is doing a loop
through the daughtercard frequencies and then keeps track of the SNR or the db
above baseli
Hi,
I have a problem with my DBSRX daughterboard. I tried to send in a
single carrier on 1.57542 GHz and watch it with usrp_fft.py, and I
observe that the received signal is offset by many KHz. This really
does not come as a big surprise, since ack. to the usrp_fft.py GUI the
actual BB frequency
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