On 10/20/2020 01:05 AM, Kyeong Su Shin via USRP-users wrote:
Hello Trang:
It depends on your applications. USRPs CAN be used to scan and map the
wireless spectrum, but you will have to determine whether the spectrum
is empty or not, and it is not a trivial question. For an example,
signals from satellites and spacecrafts are often below the thermal
noise, so you will need to use special dish antennas and/or correlate
the signals with known sequences in order to detect them. Also, USRP
B200/B210 are not high-end spectrum analyzers, so they may show you
some spurious signals (possible false positives).
So, yes, it is possible, but I don't know whether they are suitable
for your use cases.
Regards,
Kyeong Su Shin
------------------------------------------------------------------------
Some further wisdom. SDRs are *components* in an overall engineered RF
*system and application*. They aren't "born" knowing your
particular application.
You'll need some non-trivial knowledge of software development
methodologies, DSP knowledge, and knowledge of radio and electronics
to develop an application that suits your needs.
Now, there are lots of applications for SDRs in general out there. I'd
suggest you query the discuss-gnuradio mailing list as well.
But don't be surprised to find that an application that fits precisely
what you want to do doesn't exist.
Consider two things:
The set that could be described as "useful things you might want to do
with radio technology"
The set that could be described as "useful things you might want to do
with a computer"
Both of those sets are staggeringly large. So even an intersection will
also be staggeringly large. So it should not perhaps be surprising that
not everything that could possibly be done with this technology has
already been invented, and conveniently packaged.
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