Tag: SDR

Via the ARRL: Germany Special Event Recognizes Anniversary of SDR Development

The Deutscher Amateur Radio Club (DARC) this year is honoring 35 years of software-defined radio (SDR) technology with special call sign and special DOK. “In order to acknowledge the high importance of digital signal processing for communications technology in general, and amateur radio in particular, a special event station DL35SDR will be active from the […]

PODCAST: This Week in Amateur Radio Edition #1090

Release Date: January 18, 2020 Here is a summary of the news trending this week. This weeks edition is anchored by Dave Wilson, WA2HOY, Don Hulick, K2ATJ, Fred Fitte, NF2F, Will Rogers, K5WLR, Paul Kolacki, K2FX, George Bowen, W2XBS, and Jessica Bowen, KC2VWX. Produced and edited by George Bowen, W2XBS. Running Time: 1:31:41 Download here: […]

Via HACKADAY: All Your SDR Software In A Handy Raspberry Pi Image

The SDR revolution has brought a bonanza of opportunities for experimentation to the radio enthusiast, but with it has come a sometimes-confusing array of software for which even installation can be a difficult prospect for an SDR novice. If you’re bamboozled by it all then help may be at hand courtesy of [Luigi Cruz], who […]

Via HACKADAY: A Radio Transceiver From A Cable Modem Chipset

It’s a staple of our community’s work, to make electronic devices do things their manufacturers never intended for them. Analogue synthesisers using CMOS logic chips for example, or microcontrollers that bitbang Ethernet packets without MAC hardware. One of the most fascinating corners of this field comes in the form of software defined radios (SDRs), with […]

via HACKADAY: Reverse Engineering An Insulin Pump With An SDR And Decapping

Insulin pumps are a medical device used by people with diabetes to automatically deliver a measured dose of insulin into their bloodstream. Traditionally they have involved a canula and separate connected pump, but more recent models have taken the form of a patch with a pump mounted directly upon it. When [Pete Schwamb]’s daughter received  […]

via HACKADAY: 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 route to the ISS like this. For […]

via HACKADAY: 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 and who has a penchant […]

PODCAST: This Week in Amateur Radio #1018

This Week in Amateur Radio #1018 Release Date: September 1, 2018 Here is a summary of the news trending this week. This week’s edition is anchored by Will Rogers, K5WLR, Don Hulick, K2ATJ, Fred Fitte, NF2F, George W2XBS, and Jessica Bowen, KC2VWX. Produced and edited (and a little anchoring too the week) by W2XBS. Running […]

RSGB: Ham Radio May Be at “the Dawn of its Greatest Era”

The Radio Society of Great Britain (RSGB) believes that Amateur Radio innovation is alive and well. “Amateur research and innovation is far from over; indeed, we may well be at the dawn of its greatest era,” the UK’s International Amateur Radio Union (IARU) member-society concluded in an RSGB 2022 strategy narrative posted on its website. “In an […]

via HACKADAY: An FM Transceiver From An Unexpected Chip

The Si47xx series of integrated circuits from Silicon Labs is a fascinating series of consumer broadcast radio products, chips that apply SDR technologies to deliver a range of functions that were once significantly more complex, with minimal external components and RF design trickery.  [Kodera2t] was attracted to one of them, the Si4720, which boasts the […]

via HACKADAY: eTextile Spring Break Tackles Signal Blocking, Audio Generation, and Radio Transmissions

Finding a killer application for e-textiles is the realm of the hacker and within that realm, anything goes. Whether it’s protecting your digital privacy with signal shielding, generating audio with a wearable BeagleBone or 555 timer, or making your favorite garment into an antenna, the eTextile Spring Break is testing out ways to combine electronics […]

via HACKADAY: SDR IF Experiments

The R820T tuner IC is used in the popular Airspy software defined radio (SDR) as well as many of the inexpensive RTL SDR dongles. [TLeconte] did some experiments on intermediate frequency (IF) configuration of the chip, and you’ll find his results interesting. Using 5 million samples per second and the device’s real mode, the tests look at […]

via HACKADAY: Making Software Defined Radio Portable

While most smartphones can receive at least some radio, transmitting radio signals is an entirely different matter. But, if you have an Android phone and a few antennas (and a ham radio license) it turns out that it is possible to get a respectable software-defined radio on your handset. [Adrian] set this up to be fully […]