On Mon, May 13, 2013 at 10:52 AM, Marcus Müller < master.of.knowle...@gmail.com> wrote:
> Hi Juha, > > there's a lot of devices that do your job. > From the "classic commercial-grade" devices of the USRP line, > to cheaply available rx modules like the (in)famous dvb-t dongles. You can > use the tuners on old PCI tv cards and a ton of other stuff. > It all depends on what you need to do: What frequencies do you need to > tune to? What bandwidth do you need afterwards? Do you want I/Q or are you > basically doing AM? Want to have ADC afterwards or do you really need the > analog baseband? > For your "commercially available tunable magnetic loop antenna": I don't > know. Not my kind of technology. Try a random used car radio that can > receive MW broadcasts and does the tuning digitally. Most probably you'll > find a tuner module that works well but has no available documentation > whatsoever. Use your favourite digital analyzer to find out how the > microcontroller interfaces with that. Or ask your RF IC manufacturer of > choice. They build hardware. GNU Radio has nothing to do with that. > However, this question is awefully unspecific and has little to do with > GNU Radio, as it is a software radio system (and less concerned with the > hardware; anyway, 1-20MHz sounds a lot like baseband to me). > > I believe he is looking for something more like an antenna coupler/tuner used in HF applications to tune and impedance match for maximum power transfer: http://en.wikipedia.org/wiki/Antenna_tuner As for not talking about hardware on the GNU Radio mailing list - I find that a little silly. While GNU Radio is more about a framework for processing baseband signals, there's also the real need to interface to the outside world. Dynamic range, gain, and all the little hardware bits in the radio front end are all valid discussion points and completely on topic, in my opinion. Brian > Greetings > Marcus > > Am 11.05.2013 14:37, schrieb Juha Vierinen: > >> Hi, >> >> Does anyone know a good antenna tuner with a serial port, usb or >> ethernet connection that allows you to tell the tuner what frequency to >> tune to? I could really use something like this. >> >> Also, does anyone know of a good commercially available magnetic loop >> antenna for the HF band (1-20 MHz)? Again, I'd want to use a computer to >> tune the antenna for a certain frequency range. >> >> juha >> >> >> ______________________________**_________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >> >> > > ______________________________**_________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >
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