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
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