Hackaday (unofficial) March 20, 2024 12:00am Breadboard SDR Doesn’t Need Much #radiohacks #sdr #softwaredefinedradio #hackaday posted by pod_feeder_v2 Breadboard SDR Doesn’t Need Much [Grug Huhler] built a simple Tayloe mixer and detector on a breadboard. He decided to extend it a bit to be a full-blown software defined radio (SDR). He then used WSJT-X to monitor FT8 signals and…
Hackaday (unofficial) March 18, 2024 9:00am RNODE: A Portable Unrestricted Digital Radio #radiohacks #3dprinted #aprs #cryptography #liliygo #lora #lxme #nomad #reticulum #sideband #ufl #hackaday posted by pod_feeder_v2 RNODE: A Portable Unrestricted Digital Radio RNode is an open source, unrestricted digital radio transceiver based on — but not limited to — the Reticulum cryptographic networking stack. It is another interesting project in what we might call…
Hackaday (unofficial) March 16, 2024 9:00am Super-Portable, Tunable VHF Antenna #radiohacks #conductive #jpole #lowcost #portable #pota #radio #sota #tape #webbing #hackaday posted by pod_feeder_v2 Super-Portable, Tunable VHF Antenna Ham radio is having a bit of a resurgence these days, likely due to awards programs like Parks on the Air (POTA) and Summits on the Air (SOTA), which encourage amateur radio operators to head outsi…
Hackaday (unofficial) March 15, 2024 12:00pm CATS: A New Communication and Telemetry System #radiohacks #aprs #aprsis #cats #felinet #fm #fsk #kicad #ldpccoding #packetradio #rf4463 #rust #whitening #hackaday posted by pod_feeder_v2 CATS: A New Communication And Telemetry System CATS is a new communication and telemetry standard intended to surpass the current Automatic Packet Reporting System (APRS) standard by leveraging modern, super-cheap Frequency Shift Keying (FSK) t…
Hackaday (unofficial) March 15, 2024 9:00am A Look Inside a 70-GHz Electromechanical Attenuator #radiohacks #attenuator #electromechanical #microwave #pipad #rf #rohdeschwarz #solenoid #stripline #hackaday posted by pod_feeder_v2 A Look Inside A 70-GHz Electromechanical Attenuator It might not count as “DC to daylight,” but an electromechanical attenuator that covers up to 70 GHz is pretty close, and getting a guided tour of its insides is quite a treat. Perhaps …
Hackaday (unofficial) March 13, 2024 12:00pm Custom Library Rescues Good LoRa Hardware from Bad Firmware #radiohacks #devboard #esp32 #firmware #lora #meshtastic #sx1262 #hackaday posted by pod_feeder_v2 Custom Library Rescues Good LoRa Hardware From Bad Firmware The range of hardware that comes on some dev boards these days is truly staggering. Those little LoRa boards are a prime example — ESP32 with WiFi and Bluetooth, a transceiver that covers a b…
Hackaday (unofficial) March 12, 2024 9:00am Stressless Shortwave Reviewed #radiohacks #radio #receiver #shortwave #shortwaveradio #hackaday posted by pod_feeder_v2 Stressless Shortwave Reviewed [Dan Robinson] picked up a shortwave receiver known as the “stressless” receiver kit. We aren’t sure if the stress is from building a more complicated kit or operating a more comp…
Hackaday (unofficial) March 9, 2024 4:00am Inside America’s Last Morse Code Station #radiohacks #morsecode #radio #hackaday posted by pod_feeder_v2 Inside America’s Last Morse Code Station The Titanic famously (or infamously) used Morse code to call out in distress at the end of its final voyage. Ships at sea and the land-based stations that supported them used Morse code for decades…
Hackaday (unofficial) March 9, 2024 1:00am Pairing A New Remote To A Cheap RC Car #radiohacks #reverseengineering #minirccar #rccar #hackaday posted by pod_feeder_v2 Pairing A New Remote To A Cheap RC Car The cheap little RC cars are abundant anywhere you are, and if you’ve ever disassembled one, you are familiar with how the PCB looks. A single-sided phenolic paper PCB with a mystery chip dri…
Hackaday (unofficial) March 6, 2024 1:00pm GPS Antenna Mods Make Starlink Terminal Immune To Jammers #radiohacks #biastee #gpsantenna #gpsjammer #starlink #hackaday posted by pod_feeder_v2 GPS Antenna Mods Make Starlink Terminal Immune To Jammers The Starlink receivers need positioning and precise timing information to function, and currently the best way to get that information is to use a global navigation satellite system (GNSS) such as …
Hackaday (unofficial) March 5, 2024 10:00pm Making a Crystodyne Radio With Zinc Oxide and Cat’s Whiskers #classichacks #radiohacks #crystalradio #oleglosev #tunneldiode #hackaday posted by pod_feeder_v2 Making A Crystodyne Radio With Zinc Oxide And Cat’s Whiskers During the first half of the 20th century radio technology was booming, albeit restricted by the vacuum tube technology of the time which made radios cumbersome in size and power needs. The develop…
Hackaday (unofficial) March 4, 2024 8:00pm Pager Lives Again Thanks to Python And Mastodon #classichacks #radiohacks #mastodon #pager #python #hackaday posted by pod_feeder_v2 Pager Lives Again Thanks To Python And Mastodon Pagers were a big deal for a while there, even if they never quite made it into the pantheon of excellent sitcom plot devices like answering machines did. Anyway, [Finnley Dolfin] had some pagers a…
Hackaday (unofficial) March 3, 2024 1:00pm Building Your Own 4G LTE Base Station #cellphonehacks #radiohacks #4g #basestation #gsmbasestation #lte #srsran #hackaday posted by pod_feeder_v2 Building Your Own 4G LTE Base Station We’ve seen quite a few DIY 2G networks over the years, but the 4G field has been relatively barren. Turns out, there’s an open source suite called srsRAN that lets you use an SDR for se…
Hackaday (unofficial) February 10, 2024 10:00pm Pi 5 and SDR Team Up for a Digital Scanner You Can Actually Afford #radiohacks #digital #p25 #pi5 #raspberrypi #rtlsdr #scanner #sdr #sdrtrunk #trunking #hackaday posted by pod_feeder_v2 Pi 5 And SDR Team Up For A Digital Scanner You Can Actually Afford Listening to police and fire calls used to be a pretty simple proposition: buy a scanner, punch in some frequencies — or if you’re old enough, buy the right crystals — and youR…
Hackaday (unofficial) February 5, 2024 7:00am Decoding JS1YMG: First Ham Radio Station On The Moon After SLIM Mission #radiohacks #space #hamradio #lev1 #hackaday posted by pod_feeder_v2 Decoding JS1YMG: First Ham Radio Station On The Moon After SLIM Mission When Japan’s SLIM lunar lander made a rather unconventional touch-down on the lunar surface, it had already disgorged two small lunar excursion vehicles from its innards: LEV-1 and LEV-2. Of …
Hackaday (unofficial) February 4, 2024 7:00am HF In Small Spaces #radiohacks #amateurradio #antenna #capacitor #ham #loop #magloop #openwspr #radio #tuner #wspr #hackaday posted by pod_feeder_v2 HF In Small Spaces Generally, the biggest problem a new ham radio operator will come across when starting out on the high frequency (HF) bands is finding physical space for the antennas. For a quick example, a dipole…
Hackaday (unofficial) January 28, 2024 10:00am No Dish? Try a Portable Weave Helix Antenna #radiohacks #antenna #helicalantenna #hackaday posted by pod_feeder_v2 No Dish? Try A Portable Weave Helix Antenna When you think of satellite communications, you probably think of a dish. But that’s not the only option — a new device from the American University of Beruit and Stanford created a por…
Hackaday (unofficial) January 22, 2024 7:00am FM Radio is Discriminating #radiohacks #fm #fmdiscriminator #hackaday posted by pod_feeder_v2 FM Radio Is Discriminating AM radios were easy to understand. The strength of the signal goes up and down, and the audio follows. FM radio is a little more difficult. [AllAmericanFiveRadio] has an old tube FM set and takes u…
Hackaday (unofficial) January 15, 2024 7:00am Simulating a Time-Keeping Radio Signal #radiohacks #atomicclock #clock #radio #simulator #stm32 #time #verylowfrequency #vlf #wwvb #hackaday posted by pod_feeder_v2 Simulating A Time-Keeping Radio Signal As far as timekeeping goes, there’s nothing more accurate and precise than an atomic clock. Unfortunately, we can’t all have blocks of cesium in our basements, so various agencies aroun…
Hackaday (unofficial) January 14, 2024 7:00am How to Operate a 500KW Transmitter #radiohacks #amradio #crosley #wlw #hackaday posted by pod_feeder_v2 How To Operate A 500KW Transmitter Crosley was a famous name in radio for more than one reason. The National VOA Museum of Broadcasting has a video telling [Powel Crosley Jr.’s] story, and the story behind the 500 kW WLW trans…