I'm talking about "antenna tuners". This is a device that matches the impedance of an antenna to a radio. An example of a device I'm looking for is the LDG AT-100PC. Unfortunately LDG doesn't make them any more.
PS. 20 MHz isn't that much bandwidth to handle in software nowadays. juha 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). > > 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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