Search found 33 matches

by Ben321
Sun Jan 12, 2020 8:42 am
Forum: Other SDR Devices
Topic: Please help me use HackRF One with hackrf_tools in Windows
Replies: 0
Views: 4735

Please help me use HackRF One with hackrf_tools in Windows

I've got my HackRF to receive in Windows with both HDSDR and SDR#. Now it's time to go the next step, to transmit. However, neither of HDSDR nor SDR# allow transmitting. To the best of my knowledge, there is only one Windows software that transmits with HackRF, and that's hackrf_transfer from the se...
by Ben321
Fri Jan 03, 2020 5:18 am
Forum: User Projects
Topic: I need some advice in creating IQ processing software
Replies: 6
Views: 4774

Re: I need some advice in creating IQ processing software

there are many libraries (other than FFTW) available for Android, iOS, macOS, and Linux (etc.). Some with source code, so you can compile the FFT into your app. Any good ones for Windows (I don't use Mac, Linux, or Android for signal processing), that don't come with the restrictive GPL license? An...
by Ben321
Fri Aug 09, 2019 5:01 am
Forum: Other SDR Devices
Topic: Any good full-duplex SDRs?
Replies: 8
Views: 7001

Re: Any good full-duplex SDRs?

Are you wanting to use it for ham radio? Or experiments? The ones I listed are mostly for experiments. There are many ham radio SDRs that allow full duplex, but of course you pay the ham radio price for a fully developed commercial product. I'm just looking for an easy to use RX/TX full duplex SDR.
by Ben321
Fri Aug 09, 2019 1:52 am
Forum: Other SDR Devices
Topic: Any good full-duplex SDRs?
Replies: 8
Views: 7001

Re: Any good full-duplex SDRs?

Take your pick, there are many LimeSDR, PlutoSDR, bladeRF, USRP etc But an easier way, if bandwidth/freq range isn't an issue, is to just use a cheap RX SDR, like an RTL-SDR for the RX side. USRP devices cost thousands of $$$$$$. BladeRF is almost as expensive. LImeSDR is only a kickstarter type pr...
by Ben321
Fri Aug 09, 2019 1:41 am
Forum: Other SDR Devices
Topic: Anybody have ATSC decoder software for IQ files saved from AirSpy?
Replies: 0
Views: 3501

Anybody have ATSC decoder software for IQ files saved from AirSpy?

I have an AirSpy-R2 SDR, and have recorded a few seconds of an ATSC digital TV signal as a WAV file. The WAV file contains the raw IQ samples in 16bit little-endian integer format. I would like to know is this. Is there software out there that I can download that I can use to simply load the WAV fil...
by Ben321
Sat Jul 27, 2019 5:19 am
Forum: Troubleshooting Help
Topic: What is this wideband signal at exactly 432MHz?
Replies: 5
Views: 2608

Re: What is this wideband signal at exactly 432MHz?

Maybe. But just a Spike with nohting on it could be anything or nothing. Notice the signals to the left and right of this "spike" that clearly are subcarriers, which are AM modulating the carrier (which is at exatly 432MHz)? That's not a spike, that's a carrier signal of some kind. And the total si...
by Ben321
Sat Jul 27, 2019 5:00 am
Forum: User Projects
Topic: I need some advice in creating IQ processing software
Replies: 6
Views: 4774

Re: I need some advice in creating IQ processing software

2.4 million samples per second is not so much, that's pretty normal flow. 40 million samples per second is much harder to process and it really requires optimization. Regarding to FFT, just use FFTW library. On my machine with 64 bit double precision it takes about: - 0.8 ms for 4096 points FFT - 7...
by Ben321
Fri Jul 26, 2019 11:05 pm
Forum: RTL-SDR Discussion
Topic: Multiple SDRs same Application?
Replies: 6
Views: 2800

Re: Multiple SDRs same Application?

What you need is a copy of rtlsdr.dll that does NOT just use the first RTL-SDR dongle that it finds, and instead pops up a window that lets you select from a list of RTL-SDR dongles it finds. And then you need to write your own software that supports this added functionality in the special version o...
by Ben321
Fri Jul 26, 2019 10:48 pm
Forum: RTL-SDR Discussion
Topic: GNU Radio isn't working with RTL-SDR
Replies: 2
Views: 2915

GNU Radio isn't working with RTL-SDR

I downloaded the latest Windows installer for GNU Radio at http://www.gcndevelopment.com/gnuradio/downloads.htm and installed it. But I can't get it to connect with my RTL-SDR dongle. Whenever I click the button to run the graph I created with the GNU Radio blocks, it stops after a couple seconds, a...
by Ben321
Fri Jul 26, 2019 8:27 pm
Forum: User Projects
Topic: re: just into a new (for me) apt
Replies: 8
Views: 4449

Re: re: just into a new (for me) apt

I guess he need some .dll files who are missing. I had the same "problem". If you don't already have a file called rtlsdr.dll in your SDR# folder, do this: Download this https://osmocom.org/attachments/download/2242/RelWithDebInfo.zip Then in the zip file go either the folder rtl-sdr-release\x86 or...