Category Archives: sdr

A Briefcase Pentesting Rig For The Discerning Hacker

In the movies, the most-high tech stuff is always built into a briefcase. It doesn’t whether whether it’s some spy gear or the command and control system for a orbiting weapons platform; when an ordinary-looking briefcase is opened up and there’s an LCD display in the top half, you know …read more

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Posted in briefcase, pentesting, Raspberry Pi, rfid, RTL-SDR, sdr, security hacks, sigint | Leave a comment

An SDR Transceiver The Old-School Way

Software-defined radios or SDRs have provided a step-change in the way we use radio. From your FM broadcast receiver which very likely now has single-application SDR technology embedded in a chip through to the all-singing-all-dancing general purpose SDR you’d find on an experimenter’s bench, control over signal processing has moved …read more

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Posted in amateur radio, ham radio, quadrature, radio, radio hacks, sdr, transceiver | Leave a comment

Pluto (SDR) Goes Ethernet

Pluto may no longer be a planet, but it is still a fun software defined radio (SDR) set up from Analog Devices. The inexpensive radio uses a USB connector and looks somewhat like a network connection to your PC. But what if you want to really use it with a …read more

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Posted in pluto sdr, radio hacks, sdr, software-defined radio | Leave a comment

Full Earth Disc Images From GOES-17 Harvested By SDR

We’ve seen lots of hacks about capturing weather images from the satellites whizzing over our heads, but this nicely written how-to from [Eric Sorensen] takes a different approach. Rather than capturing images from polar satellites that pass overhead a few times a day, this article looks at capturing images from …read more

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Posted in radio hacks, satellite, sdr, weather satellite | Leave a comment

Camera Sees Electromagnetic Interference Using an SDR and Machine Vision

It’s one thing to know that your device is leaking electromagnetic interference (EMI), but if you really want to solve the problem, it might be helpful to know where the emissions are coming from. This heat-mapping EMI probe will answer that question, with style. It uses a webcam to record …read more

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Posted in augmented reality, camera, electromagnetic compatibility, electromagnetic interference, emc, emi, heat map, machine vision, opencv, RF, sdr, tool hacks, wireless hacks | Leave a comment

A DIY EMC Probe From Semi-Rigid Coax And An SDR

Do you have an EMC probe in your toolkit? Probably not, unless you’re in the business of electromagnetic compatibility testing or getting a product ready for the regulatory compliance process. Usually such probes are used in anechoic chambers and connected to sophisticated gear like spectrum analyzers – expensive stuff. But …read more

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Posted in electromagnetic compatibility, emc, fft, ocxo, probe, radio hacks, RTL-SDR, sdr, spectrum analyzer, testing, wireless hacks | Leave a comment

Eavesdropping On Cosmonauts With An SDR

Usually when we hear about someone making contact with astronauts in orbit, it’s an intentional contact between a ham on the ground and one of the licensed radio amateurs on the ISS. We don’t often see someone lucky enough to snag a conversation between ground controllers and a spacecraft en …read more

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Posted in Airspy, astronaut, cosmonaut, international space station, iss, QFH, quadrifilar helical antenna, sdr, Soyuz, space, wireless hacks | Leave a comment

WOPR: Security Loses Some of its Obscurity

As we’ve seen time and time again, the word “hacker” takes on a different meaning depending on who you’re talking to. If you ask the type of person who reads this fine digital publication, they’ll probably tell you that a hacker is somebody who likes to learn how things work …read more

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Posted in ble, cons, Hackaday Columns, internet of things, RTL-SDR, sdr, security, security hacks, software hacks, WOPR Summit | Leave a comment

This SDR Uses A Tube

When you think of a software defined radio (SDR) setup, maybe you imagine an IC or two, maybe feeding a computer. You probably don’t think of a vacuum tube. [Mirko Pavleski] built a one-tube shortwave SDR using some instructions from [Burkhard Kainka] which are in German, but Google Translate is …read more

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Posted in drm, ef50, ef80, radio, radio hacks, sdr, shortwave, software-defined radio, tube | Leave a comment

Radio Telescopes Horn In With GNU Radio

Who doesn’t like to look up at the night sky? But if you are into radio, there’s a whole different way to look using radio telescopes. [John Makous] spoke at the GNU Radio Conference about how he’s worked to make a radio telescope that is practical for even younger students to build and operate.

The only real high tech part of this build is the low noise amplifier (LNA) and the project is in reach of a typical teacher who might not be an expert on electronics. It uses things like paint thinner cans and lumber. [John] also built some …read more

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Posted in radio hacks, Radio Telescope, sdr, software-defined radio, space | Leave a comment