Questions tagged [software-defined-radio]
Radio devices that use digital signal processing in place of analog electronic components to manipulate RF signals.
328 questions
0 votes
0 answers
75 views
Why am I getting harmonics with HackRF One in RX mode? How to resolve in GNU Radio
I am trying to get the frequency spectrum of AM modulated signals generated by an AFG on GNU Radio through a HackRF One. The spectrum of the AM signal as viewed on the oscilloscope is as expected. ...
0 votes
1 answer
111 views
First experiment with SDR
I crafted a Tayloe detector and I'm trying to receive something with SDR++, but I'm having some trouble. I'm tuning to 4.625 Khz (disregard the frequency in the screenshot; I'm tuning the board ...
- 103
0 votes
1 answer
352 views
GNU Radio block selection window is missing!
I am trying to use Gnuradio but am unable to add new blocks after "find blocks" (blue magnifier icon) button of Gnuradio stopped functioning. I can execute flowgraphs but can't use find ...
3 votes
3 answers
366 views
In software circularly polarization of antennas
I have an RSPduo which has true diversity capability. Now my question is whether or not I can use this diversity feature to select the optimal amplitude and phase contribution of the horizontal and ...
- 165
0 votes
1 answer
108 views
Generating and detecting a narrow pulse at 2.4 or 5.8 GHz with SDR?
Just looking for general guidance, as an absolute newbie in the field. How would I go about generating and detecting a narrow pulse with SDR (say, HackRF One) in one of the ISM bands? Let's say I am ...
- 103
1 vote
2 answers
131 views
I am using the BladeRF 2.0 xA4, and I am encountering this problem in GQRX. Any ideas?
I am using WSL with Ubuntu and wanted to test this new SDR with GQRX at the minimum selectable sample rate of 5 Msps. However, the waterfall starts and then crashes. It continues moving downwards, but ...
- 21
2 votes
0 answers
66 views
radio noise all over the 2 GHz spectrum on the Pi 3b
HW involved: RTL-SDR / SDRPlay dongle old linux PC / raspberry Pi 3b SW involved: GQRX and the underlying dependencies; same versions except for gr-osmosdr Debian Strertch based Linux on the PC, gr-...
- 327
0 votes
2 answers
386 views
Shortwave radio antenna
I came to know that there are shortwave antennas avoidable in the market (Sangean ANT-60) that uses only a single long wire winded inside a case that can be hung inside the room or near the window. ...
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