If IF is at 44MHz, is it further downconverted(to around 5-15MHz) before
being fed to the ADC? I just want to know this out of curiosity. Pls let me
know.
_
Cheers!
Prasanna
On 10/12/07, Nirali Patel <[EMAIL PROTECTED]> wrote:
>
> >>I ordered Tvrx module and expect it to arrive at my pla
Hi there,
I've got a USRP v4 board that I'm planning to run off of a 13Mhz
external clock. I know how to modify the hardware and software
accordingly. (I hope.)
However, I'm intending to use a pair of RFX 900 daughterboards, and
I'm wondering if there are any known mods needed to allow these
dau
Hello Eric,
> [In looking at interp.py, it could be modified to run something like
> 4x faster by using gr.interp_fir_filter_ccf instead of what's in
> there. Also, decimating by 10 seems a bit agressive. By 8 would give
> you more usable signal, though would require changes in the interp.py
> c
Matt Ettus wrote:
>
> Yes, the shippingones have an IF of 44 MHz. The older ones were 5.75
> MHz, but from the user's point of view, it doesn't matter. You don't
> need to know the IF.
>
>
>
> Matt
>
Actually that's something I was curious about as well. I'll likely be
picking up a TV_RX for
>>> 1) What is range of the IF I can set its output to?
>>>
> It has a fixed IF at 44Mhz I believe. A different version of the same tuner
> module comes with 5.75Mhz IF. Matt, please correct me if I am wrong.
>
Yes, the shippingones have an IF of 44 MHz. The older ones were 5.75
MHz, b
Brian-
> On 10/12/07, Jeff Brower <[EMAIL PROTECTED]> wrote:
> > I think the biggest concerns with Cyclone I are lack of multipliers and low
> > amount of
> > internal mem (26 kbyte for the EPC1C12).
>
> Understandable, but also remember that a CORDIC can perform a
> multiplication if you want i
>>I ordered Tvrx module and expect it to arrive at my place soon. Hope it
will have a manual or imp guidelines on usage.
The TVRX will not come with a manual or guidelines on usage. You can find
the schematics at http://gnuradio.org/trac/browser/usrp-hw/trunk/tvrx
The TVRX module has a Microtune
On 10/12/07, Jeff Brower <[EMAIL PROTECTED]> wrote:
> I think the biggest concerns with Cyclone I are lack of multipliers and low
> amount of
> internal mem (26 kbyte for the EPC1C12).
Understandable, but also remember that a CORDIC can perform a
multiplication if you want it pipelined - and if y
Brian-
> > 2) Does your new FPGA code require the next-gen USRP, with Spartan 3 FPGA?
> > My understanding is that capacity is very
> > limited in the Cyclone, which is an old FPGA (around yr 2002 time-frame).
>
> If you have a single, specific application in mind, you should be able
> to reduc
Brian-
> > 2) Does your new FPGA code require the next-gen USRP, with Spartan 3 FPGA?
> > My understanding is that capacity is very
> > limited in the Cyclone, which is an old FPGA (around yr 2002 time-frame).
>
> If you have a single, specific application in mind, you should be able
> to reduc
Johnathan Corgan wrote:
Paul Creekmore wrote:
The only package I've ever installed was 3.0.2. I've done so once with
Synaptic Package Manager and once with apt-get.
I see no mention of usrpm. Specifically, usrp_fft.py imports usrp.py,
and usrp.py imports usrp_prims and usrp_dbid, neither
OK sorry for the flood :P I've finally been able to reproduce this
error on another one of my machines... it does not seem to occur at all
on two of my machines, but on a third it does. Looking in to this now.
- George
___
Discuss-gnuradio mailing
George Nychis wrote:
These appear after "Closing the USRP". There is cpu usage only after
this message, and only one core is used (is that right?). It takes more
than 8 minutes, not 40s as in your example in the wiki. Since it
appeared to hang, I have interrupted the execution.
One more th
Dominik Auras wrote:
Hi!
I have tried to profile your code.
Thank you! :D
What are your machine specs?
First thing I noted: The PMT library from your svn branch had to be
installed with sudo make install. Now I installed the whole branch.
Yes, I forgot to mention this, thank you! I wi
Hi!
I have tried to profile your code.
First thing I noted: The PMT library from your svn branch had to be
installed with sudo make install. Now I installed the whole branch.
Next thing:
When I run test_usrp_inband_rx, it takes very long time and produces
messages:
fusb: (rd status -2) No such f
On 10/12/07, Jeff Brower <[EMAIL PROTECTED]> wrote:
> ...
> 2) Does your new FPGA code require the next-gen USRP, with Spartan 3 FPGA?
> My understanding is that capacity is very
> limited in the Cyclone, which is an old FPGA (around yr 2002 time-frame).
If you have a single, specific applicatio
Hello,
I am Archana from the University of Maryland,College Park. I have two USRPs
connected to two laptops. The USRPs have antennae connected to them.
Basically I am trying to get the two USRPs communicate with each other using
OFDM. I started by playing around with the ofdm_benchmark_tx.py and
o
I ordered Tvrx module and expect it to arrive at my place soon. Hope it will
have a manual or imp guidelines on usage. Anyhow, I have a few basic
questions :
1) What is range of the IF I can set its output to?
2) Can I use it for HDTV reception?
3) What is the max voltage swing in the output? Is
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