Category Archives: radio hacks

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

RFID Payment Ring Made from Dissolved Credit Card

RFID payment systems are one of those things that the community seems to be divided on. Some only see the technology as a potential security liability, and will go a far as to disable the RFID chip in their card so that it can’t be read by a would-be attacker. …read more

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Posted in contactless payment, credit card, magnet wire, radio hacks, rfid, silicone mold, wearable 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

Piezoelectric Antennas For Very, Very Low Frequencies

If you want to talk about antennas, the amateur radio community has you covered, with one glaring exception. Very low frequency and Extremely Low Frequency radio isn’t practiced very much, ultimately because it’s impractical and you simply can’t transmit much information when your carrier frequency is measured in tens of …read more

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Posted in antenna, news, piezo, piezoelectric, radio, radio hacks, vlf | Leave a comment

The $50 Ham: Checking Out the Local Repeater Scene

So far in this series, we’ve covered the absolute basics of getting on the air as a radio amateur – getting licensed, and getting a transceiver. Both have been very low-cost exercises, at least in terms of wallet impact. Passing the test is only a matter of spending the time …read more

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Posted in amateur radio, duplexer, Hackaday Columns, handy talkie, network, Original Art, radio hacks, repeater, simplex, The $50 Ham, traffic | Leave a comment

A New Digital Mode For Radio Amateurs

There used to be a time when amateur radio was a fairly static pursuit. There was a lot of fascination to be had with building radios, but what you did with them remained constant year on year. Morse code was sent by hand with a key, voice was on FM …read more

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Posted in 433MHz, 70 cm, amateur radio, packet radio, radio hacks | Leave a comment

Custom LoRa Pager Designed With Care

LoRa is a useful technology if you need to send data a long way at low power levels. Leveraging this, [5Volt-Junkie] decided to build a small pager named the LoRaNicator.

Those who love a detailed build log will enjoy this. The pager features everything up to and including the kitchen …read more

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Making A 1940s Radio Digital With Nixies

Classix Philly One Oh Seven Nine is your home for Philly soul right at the top of the dial, and now you know why this writer isn’t allowed on the Hackaday podcast. That phrase, ‘top of the dial’ doesn’t mean much these days because we all have radios with a …read more

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Posted in Glasslinger, nixie, radio, radio hacks | Leave a comment

Building A Magnetic Loop Antenna

Antennas come in many shapes and sizes, with a variety of characteristics making them more or less suitable for various applications. The average hacker with only a middling exposure to RF may be familiar with trace antennas, yagis and dipoles, but there’s a whole load more out there. [Eric Sorensen] …read more

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Posted in antenna, antenna build, ham radio, magnetic loop antenna, radio, radio hacks | Leave a comment