WBFM Transmit with HackRF & GNURadio. Note that Fedora 32 packages Wine 5.18 and winetricks complains…, Are you sure it can’t do HRIT? As they…, No I have not seen that effect, but I am currently not using my RTL-SDR, does that also happen when…, GOES 16/17 and GK-2A Weather Satellite Tutorial, Decoding 433 MHz ISM Band Weather Stations, QRP (FT8, JT9, WSPR etc) Monitoring Station, Performing Replay Attacks with RTL-SDR and RpiTX, SignalsEverywhere Direction Finding Tutorial, Measuring Traffic Volumes with Passive Radar, Manual gain controls and decimation driver, ExtIO with Decimation & Tuner Bandwidth Controls, ZR6AIC has shown that it is possible to create a linear transponder using an RTL-SDR for receiving, Building a Homemade FM Repeater with a Raspberry Pi, Rpitx and RTL-SDR Dongle, Using a HackRF to Transmit To a Local Repeater, Creating a High Altitude Balloon Telemetry System with Raspberry Pi, RPiTX and RTL-SDR, Setting up a Raspberry Pi based APRS RX IGate with an RTL-SDR, Creating an Encrypted ADS-B Plane Spotter with a Raspberry Pi, RTL-SDR and SSL, Video Demonstrating C-Band AERO Aircraft Tracking, A Few More Demonstrations of the SDR# FM and AM Co-Channel Cancellers, A Dual Aircraft and Ship Tracking System with RTL-SDR, Simple dPMR Decoder Plugin for SDR# Released, Running SDR# On Ubuntu 20.04 Linux via WINE, Spektrum: New RTL-SDR Spectrum Analyzer Software, New GOES Weather Satellite Bundle from NooElec, Automatic dependent surveillance broadcast, RTL-SDR Discussion • Re: Trunking and just plain receiving, RTL-SDR Discussion • Trunking and just plain receiving. How to get back a backpack lost on train or airport? Why didn't the Imperial fleet detect the Millennium Falcon on the back of the star destroyer? If you are unfamiliar with ham radio, a ham repeater is simply a radio station that receives voice or other signals on a certain ham radio frequency, and re-transmits the signal with stronger power on another frequency. In GNU Radio's graphical tool, GNU Radio Companion, you can design a "flow graph" to read a file, write a file, and do any particular conversions along the way, such as for your case: Here we take the two “stereo” channels of the WAV file (which GNU Radio automatically converts to floats in the −1 to +1 range), put them in alternating left-right-left-right sequence, resample it from an assumed rate of 44.1 kHz to 2 MHz (that being the minimum supported by the HackRF One), rescale to −127 to +127, and write to the raw output file (which will have the same sample rate as the input file). Making statements based on opinion; back them up with references or personal experience. To be completely honest, I gave up. Use MathJax to format equations.
Contact me with intriguing work opportunities.
Will edit OP.
The flow graph seems pretty straightforward but I am in no way an expert at digital signal processing. ( Log Out / Save your files to the hard drive to avoid losing work. Change ), http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioLiveDVD. This was easier said than done. I just bought a HackRF one. Everything I found so far was for linux and took a lot of software to try to convert it.
The signal is then resampled to a rate compatible with the hardware. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account.
The flow graph looks something like this: AIS Frame Builder (custom GRC block) -> GMSK Mod -> Multiply Const (0.9) -> UHD: USRP Sink. Can the hackrf do the processing and Rx/tx? What's wrong with the "airline marginal cost pricing" argument? Is there any way to average resistors together to get a tighter overall resistance tolerance?
Just got my HackRF and was wondering if there are any easy ways to set up transmitting. Archived. Posted by 4 years ago. In the above flow graph, the Wav source produces a morse code file “KF2MR Test” which repeats a couple of times, provides the option of changing the amplitude, then goes through the Narrow Band FM Modulator. With great interest I have been reading your post and solution with the HackRF. I have decided to start learning about SDR using the 'HackRF One' from Great Scott Gadgets (link). I started with Lubuntu on VirtualBox, but ended up installing Linux Mint 17.3 on a laptop. I went to Target, bought a stack of DVDs and another USB disk.
I'm not entirely sure what the issue might be. Cookies help us deliver our Services. A slider is linked to the audio gain (Multiply Const) block and a frequency selection interface is linked to the Osmocom sink (HackRF driver). Every test connection is hard-wired from the transmitter to the receiver: Transmitting AIS using the included GRC flow graph. (Required).
As far as I know, the hack only allows a CW transmission. for example i want to broadcast an FM signal using HackRF one and try to receive it using another hardware (RTL-SDR). Outstanding info so far, lots for me to look into, thanks so much.
Is it a good idea to shove your arm down a werewolf's throat if you only want to incapacitate them? Over on YouTube Tech Minds has uploaded a new video where he shows how he can use his HackRF SDR with the SDRAngel software to easily transmit voice to a local ham radio repeater. What is a proper way to support/suspend cat6 cable in a drop ceiling? That works even better, because one doesn’t need LINUX! Radio transmissions with HackRF. Nice, write up and great job for a first time linux user!
As a note, I am not transmitting/receiving over the air. I speak from experience). After completing the “homework” of creating the FM broadcast receiver, I thought I was ready to move on to transmitting. I do, however, want to point out one thing to be careful about: operating at too low a sample rate. Change ), You are commenting using your Facebook account. Over on his blog ZR6AIC has shown that it is possible to create a linear transponder using an RTL-SDR for receiving, a Raspberry Pi for processing the signal, and a HackRF for re-transmitting the signal. I've also tried receiving using gr-ais's ais_rx script.
If you got the recording from another program which explicitly says it produces IQ output, then that's fine.
Book featuring an encounter with a mind-reading centaur. Hence the received frequency linearly translates to the transmitted frequency.
Also, how would I create or convert that format from a standard WAV file? After working for nearly 4 hours to create this transmitter and losing all of my work (See USB Boot Warning above), I decided to install Ubuntu and GNU Radio with HackRF libraries. ;). I've got access to an AIS Receiver which is hard-wired to the transmitting radio.
Not a ton of info available but the IRC group and forum/discussion groups are great. You must also make sure that the sample rate of the data matches the sample rate specified on the command line and is a rate supported by the HackRF hardware.
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