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Things you can do with a Software Defined Radio (2024)

news.ycombinator.com Unknown 2025-09-22 05:35:19

Fifty Things you can do with a Software Defined Radio 📻 Last week, I went on an adventure through the electromagnetic spectrum! It’s like an invisible world that always surrounds us, and allows us to do many amazing things: It’s how radio and TV are transmitted, it’s how we communicate using Wi-Fi or our phones. And there are many more things to discover there, from all over the world. In this post, I’ll show you fifty things you can find there – all you need is this simple USB dongle and an

Topics: frequency mhz radio receive things

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Fifty Things you can do with a Software Defined Radio

news.ycombinator.com Unknown 2025-09-22 15:35:19

Fifty Things you can do with a Software Defined Radio 📻 Last week, I went on an adventure through the electromagnetic spectrum! It’s like an invisible world that always surrounds us, and allows us to do many amazing things: It’s how radio and TV are transmitted, it’s how we communicate using Wi-Fi or our phones. And there are many more things to discover there, from all over the world. In this post, I’ll show you fifty things you can find there – all you need is this simple USB dongle and an

Topics: frequency mhz radio receive things

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Get a Google Pixel 10? You need to change this display setting immediately

androidauthority.com Unknown 2025-10-18 20:00:35

Joe Maring / Android Authority There’s a lot to like about the Google Pixel 10. The triple-camera system on the back is one of the most impressive we’ve seen for a non-Pro Pixel. Magnetic Qi2 charging is a fantastic addition, the Tensor G5 is a significant upgrade, and the Indigo color this year is oh-so-pretty. Google has also been at the top of its display game for a while now, and the Pixel 10 is no exception. With a 6.3-inch OLED panel, a 120Hz refresh rate, and up to 3,000 nits of peak br

Topics: 10 120hz google pixel refresh

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Elehear Beyond Pro Review: Big Hearing Aids

wired.com Christopher Null 2025-10-24 11:00:00

In the world of hearing aids, size is second only to audio quality. Manufacturers regularly tout when they shave a few hundredths of a gram off a model, and many jockey for top position as “the smallest hearing aid on the market.” Never mind any of that, Elehear said in 2024 when it released its Elehear Beyond. At 4.75 grams, the devices were some of the largest I’ve ever tested (nearly double the weight of some competing models), which made them cumbersome and uncomfortable, a major theme in m

Topics: audio elehear hearing hz new

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FCC chairman helps AT&T cement dominance with $23 billion spectrum deal

arstechnica.com Unknown 2025-10-25 18:32:59

EchoStar has agreed to sell $23 billion worth of spectrum licenses to AT&T in a deal spurred by threats made by the Federal Communications Commission to revoke EchoStar's rights to use the spectrum. AT&T said it will use the spectrum to boost its 5G mobile network and expand its fixed wireless home Internet service. The AT&T/EchoStar deal, which is expected to be completed in mid-2026, could mark the beginning of EchoStar's spectrum portfolio being carved up and sold to other carriers. Starlink

Topics: carr echostar fcc mhz spectrum

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AT&T is spending $23 billion on new spectrum, but what will it do with it?

androidauthority.com Unknown 2025-10-26 10:51:15

Edgar Cervantes / Android Authority TL;DR AT&T will pay roughly $23B to acquire 30 MHz of 3.45 GHz (mid-band) and 20 MHz of 600 MHz (low-band) spectrum from EchoStar/Dish, and the companies say they’ll deepen Boost’s wholesale access agreement with AT&T’s network. Details on the enhanced MVNO deal are vague, but it likely means Boost will lean more on AT&T coverage; priority/QoS improvements are possible but unconfirmed. Don’t expect instant customer-visible changes, but the added spectrum sh

Topics: band boost mhz network spectrum

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Control shopping cart wheels with your phone (2021)

news.ycombinator.com Unknown 2025-10-31 10:59:04

About Play the below sounds through your phone speaker and hold it next to a Gatekeeper Systems wheels to lock/unlock. Check me out on twitter @stoppingcart How It Works Most electronic shopping cart wheels listen for a 7.8 kHz signal from an underground wire to know when to lock and unlock. A management remote can send a different signal at 7.8 kHz to the wheel to unlock it. Since 7.8 kHz is in the audio range, you can use the parasitic EMF from your phone's speaker to "transmit" a similar cod

Topics: audio khz lock signal unlock

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Candle Flame Oscillations as a Clock

news.ycombinator.com Unknown 2025-11-03 17:49:51

Todays candles have been optimized for millenia not to flicker. But it turns out when we bundle three of them together, we can undo all of these optimizations and the resulting triplet will start to naturally oscillate. A fascinating fact is that the oscillation frequency is rather stable at ~9.9Hz as it mainly depends on gravity and diameter of the flame. We use a rather unusual approach based on a wire suspended in the flame, that can sense capacitance changes caused by the ionized gases in t

Topics: candle flame hz signal time

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AMD Ryzen Threadripper 9980X and 9970X Review

techspot.com Steven Walton 2025-12-13 10:08:00

AMD's latest Ryzen Threadripper 9000 series arrives with a familiar formula: massive core counts, eye-watering specs, and price tags to match. Built on the Zen 5 microarchitecture, these chips pack up to 64 cores and 128 threads, along with 80 lanes of PCIe 5.0 connectivity. As with previous generations, the lineup is split in two: a high-end desktop (HEDT) range, simply called Threadripper 9000, and a workstation-class series known as Threadripper Pro 9000WX. Our focus here is on the HEDT chi

Topics: 9980x core ghz pro threadripper

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AMD Ryzen Threadripper 9980X and 9970X Review: Zen 5 to the Extreme

techspot.com Steven Walton 2025-12-13 10:08:00

AMD's latest Ryzen Threadripper 9000 series arrives with a familiar formula: massive core counts, eye-watering specs, and price tags to match. Built on the Zen 5 microarchitecture, these chips pack up to 64 cores and 128 threads, along with 80 lanes of PCIe 5.0 connectivity. As with previous generations, the lineup is split in two: a high-end desktop (HEDT) range, simply called Threadripper 9000, and a workstation-class series known as Threadripper Pro 9000WX. Our focus here is on the HEDT chi

Topics: 9980x core ghz pro threadripper

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Ultra-Rapid Vision in Birds

news.ycombinator.com Jannika E. Boström 2025-12-11 04:32:46

Flying animals need to accurately detect, identify and track fast-moving objects and these behavioral requirements are likely to strongly select for abilities to resolve visual detail in time. However, evidence of highly elevated temporal acuity relative to non-flying animals has so far been confined to insects while it has been missing in birds. With behavioral experiments on three wild passerine species, blue tits, collared and pied flycatchers, we demonstrate temporal acuities of vision far e

Topics: birds hz light species temporal

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N78 band 5G NR recordings

news.ycombinator.com Unknown 2026-01-01 14:08:17

In my last post about 5G NR, which was part of a series in which I analyzed the signals in a short recording of an idle srsRAN gNB, I mentioned that I had already decoded all the signals that appear in the recording, and that to move on with my 5G series I would need to make and use some more complex real world recordings next. A 5G band I’m particularly interested in is n78 (3.3 – 3.8 GHz TDD). This is being used to deploy 5G in many European countries, including Spain, as showed by this list

Topics: 5g band mhz n78 recording

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Wi-Fi Experts Reveal How Trump’s Budget Bill Could Slow Down Your Wi-Fi

cnet.com See Full Bio 2026-01-06 23:05:00

You won’t find the term “Wi-Fi” anywhere in the text of President Donald Trump’s One Big Beautiful Bill, but a provision authorizing the FCC to auction off spectrum could seriously impact speeds on newer Wi-Fi routers. Every wireless device, from garage door openers to baby monitors, relies on the electromagnetic spectrum to work. But that spectrum is a limited resource -- to open up capacity for one technology, you have to take it away from another. The latest generation of Wi-Fi 6E and Wi-Fi

Topics: 6ghz fi internet spectrum wi

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3 Best Hall Effect Keyboards for Gamers and Serious Typists (2025)

wired.com Henri Robbins 2026-01-08 20:03:00

Polling rate is likely one of the most prominently displayed details on any Hall effect keyboard, purely because the large numbers emphasize one of the most important aspects of these keyboards: Speed. Whether a keyboard has a 1,000- or 10,000-Hz polling rate, this number represents how many messages are sent from the keyboard to the PC every second. For example, a keyboard with 1,000-Hz polling will send 1000 messages every second. Most office equipment operates at 125 Hz. In high-performance g

Topics: 000 distance hz keyboard keyboards

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Alienware's 27-inch 280Hz QD-OLED monitor is now available for $550

engadget.com Unknown 2026-01-20 00:00:28

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Alienware has just released a pair of gaming monitors that offer affordability with very few compromises while using Dell's new AW30 design language. Announced earlier this year, the key model is the 27-inch AW2725D 280Hz QD-OLED QHD (2,560 x 1,440) monitor with one of the lowest price

Topics: 320hz accuracy alienware aw2525hm dell

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The next big HDMI leap will change how you watch TV - what the 2.2 standard means

zdnet.com Chris Bayer 2026-01-23 08:15:12

Kerry Wan/ZDNET The arrival of HDMI 2.2 technology ushers in a new era of A/V potential, which is great news for enthusiasts and future-proofing fanatics. It might be a little while before every device on the market sports the new tech, but you can expect to see the first "Ultra96" HDMI cables hitting shelves later this year. Increased bandwidth and resolution This is a significant leap forward from the current HDMI 2.1. Even ultra-high-speed 2.1 cables cap out at 48 Gbps. While 48 Gbps has c

Topics: cable hdmi high hz new

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TaIrTe₄ photodetectors show promise for sensitive room-temperature THz sensing

news.ycombinator.com Ingrid Fadelli 2026-01-20 11:53:41

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: High-performance THz sensing based on the strong THz nonlinear electrodynamics in a layered correlated topological semimetals TaIrTe 4 . Credit: Xin (Zoe) Zou Terahertz radiation (THz), electromagnetic radiation with frequencies ranging between 0.1 and 10 THz, could be leveraged to develop various new technologies,

Topics: correlated sensing thz topological xiao

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Prime Day steal: OnePlus Pad price gets record drop to only $329

androidauthority.com Unknown 2026-01-24 20:30:07

Ryan Haines / Android Authority If you’re in the market for a new tablet, there’s an exciting Prime Day deal you can’t miss. The OnePlus Pad is available for a remarkable price of $329, down from its usual price of $479.99. This represents a 31% discount off the retail price, and we’ve certainly never tracked it this cheap ever. OnePlus Pad for $329 (31% off) The OnePlus Pad might now have a successor, but it’s still packed with features that cater to tech enthusiasts and casual users alike. I

Topics: 144hz battery oneplus pad price

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What Trump's 'big beautiful bill' means for Wi-Fi 6E and Wi-Fi 7 users (Hint: It's not pretty)

zdnet.com Steven Vaughan-Nichols 2026-01-24 20:08:56

Francesco Carta fotografo/Getty Images I thought we'd dodged a networking bullet when the US Budget bill, aka the "One Big Beautiful Bill (BBB)," didn't include a freeze on AI regulation, which had been tied to broadband funding from the $42.5 billion Broadband Equity, Access, and Deployment (BEAD) program. However, I missed the point that the bill still includes provisions that could force the Federal Communications Commission (FCC) to auction off significant portions of the 6GHz spectrum cur

Topics: 6ghz band fi mobile wi

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Wi-Fi in the US Could Get Worse Under Trump's New Law

wired.com Jon Brodkin 2026-01-27 00:00:00

The Federal Communications Commission has regained its authority to hold spectrum auctions and could use that power to take spectrum away from Wi-Fi networks and license it to mobile carriers AT&T, Verizon, and T-Mobile. As we previously wrote, the Senate budget bill pitched by Ted Cruz (R-Texas) called for at least 800 MHz to be auctioned and allowed part of it to be taken from the 6 GHz band that's being used to boost speeds in the new generation of Wi-Fi networks. The House previously voted

Topics: band fi ghz spectrum wi

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Trump and Congress finalize law that could hurt your Wi-Fi

arstechnica.com Unknown 2026-01-30 00:33:28

The Federal Communications Commission has regained its authority to hold spectrum auctions and could use that power to take spectrum away from Wi-Fi networks and license it to mobile carriers AT&T, Verizon, and T-Mobile. As we previously wrote, the Senate budget bill pitched by Ted Cruz (R-Texas) called for at least 800 MHz to be auctioned and allowed part of it to be taken from the 6 GHz band that's being used to boost speeds in the new generation of Wi-Fi networks. The House previously voted

Topics: cbrs fi ghz law spectrum

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13 Best Wi-Fi Routers of 2025, Tested and Reviewed

wired.com Simon Hill 2026-01-31 05:04:00

Other Routers We Have Tested I have tested some other routers and have several more in the queue. These aren’t as great as the picks above, but are worth considering. Photograph: Simon Hill AVM FRITZ!Box 5690 Pro for £374: While AVM has dominated the German router market for years and still has around a 50 percent market share, it's now expanding across Europe and the UK, so I tested the FRITZ!Box 5690 Pro. AVM’s range is distinctive in white and red plastic, but there's a focus on functional

Topics: band fi ghz router wi

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Senate GOP budget bill has little-noticed provision that could hurt your Wi-Fi

arstechnica.com Unknown 2026-02-12 10:37:32

Sen. Ted Cruz (R-Texas) has a plan for spectrum auctions that could take frequencies away from Wi-Fi and reallocate them for the exclusive use of wireless carriers. The plan would benefit AT&T, which is based in Cruz's home state, along with Verizon and T-Mobile. Cruz's proposal revives a years-old controversy over whether the entire 6 GHz band should be devoted to Wi-Fi, which can use the large spectrum band for faster speeds than networks that rely solely on the 2.4 and 5 GHz bands. Congress

Topics: away band cruz ghz spectrum

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The next big HDMI leap is coming soon - what the 2.2 standard means for you

zdnet.com Chris Bayer 2026-02-12 20:33:00

monticelllo/Getty Images The arrival of HDMI 2.2 technology ushers in a new era of A/V potential, which is great news for enthusiasts and future-proofing fanatics. It might be a little while before every device on the market sports the new tech, but you can expect to see the first "Ultra96" HDMI cables hitting shelves later this year. Increased bandwidth and resolution This is a significant leap forward from the current HDMI 2.1. Even ultra-high-speed 2.1 cables cap out at 48 Gbps. While 48 G

Topics: cable hdmi high hz new

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6 Best Mesh Wi-Fi Systems (2025), Tested and Reviewed

wired.com Simon Hill 2026-02-13 20:00:00

The Quality of Service feature lets you prioritize activities like gaming or streaming, or set priority devices. Importantly, you can split the 2.4-GHz and 5-GHz bands to show as two separate Wi-Fi networks. This is handy, as some smart home devices only operate on the former band. Similarly, there's a mixed mode for WPA2 and WPA3 security. Some devices don't work with the newer WPA3 standard, and some routers force you to choose one or the other, which can lead to issues. This mode ensures all

Topics: fi ghz mesh router wi

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Trump’s ‘big beautiful bill’ could mean slower Wi-Fi for you

theverge.com Jennifer Pattison Tuohy 2026-02-14 20:28:12

The Senate version of the budget reconciliation bill, backed by President Donald Trump, removes protections for unlicensed spectrum that broadens the capacity of the 6GHz Wi-Fi band. This could result in slower Wi-Fi speeds. Under the bill, which may be voted on at the end of this week, the FCC would sell off some of that spectrum to mobile carriers such as AT&T, which could use it to improve the speed of their mobile data. The bill includes a provision requiring the FCC to auction 800MHz of sp

Topics: 6ghz band fi spectrum wi

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The next big HDMI leap has arrived - here's how these 16K cables will shake things up

zdnet.com Chris Bayer 2026-02-15 05:15:00

Adrian Kingsley-Hughes/ZDNET The arrival of HDMI 2.2 technology ushers in a new era of A/V potential, which is great news for enthusiasts and future-proofing fanatics. It might be a little while before every device on the market sports the new tech, but you can expect to see the first "Ultra96" HDMI cables hitting shelves later this year. Increased bandwidth and resolution This is a significant leap forward from the current HDMI 2.1. Even ultra-high-speed 2.1 cables cap out at 48 Gbps. While

Topics: cable hdmi high hz new

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The next big HDMI leap is here - how new 'Ultra96' cables will shake things up

zdnet.com Chris Bayer 2026-02-15 09:58:00

Adrian Kingsley-Hughes/ZDNET The arrival of HDMI 2.2 technology ushers in a new era of A/V potential, which is great news for enthusiasts and future-proofing fanatics. It might be a little while before every device on the market sports the new tech, but you can expect to see the first "Ultra96" HDMI cables hitting shelves later this year. Increased bandwidth and resolution This is a significant leap forward from the current HDMI 2.1. Even ultra-high-speed 2.1 cables cap out at 48 Gbps. While

Topics: cable hdmi high hz new

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BOE unveils 8K 120Hz panel with 4K 240Hz dual-mode support for high-end monitors

techspot.com Daniel Sims 2026-03-07 05:13:00

Forward-looking: Display manufacturer BOE recently showcased what might become the first widely available panel to support 120Hz at 8K. While other technical details, such as the cables used to achieve the necessary bandwidth, remain unclear, the panel is expected to enter mass production later this year, at which point it will be available to display manufacturers. The 8K Association spotted the 31.5-inch screen during this year's SID Display Week event in Los Angeles. However, the only other

Topics: 120hz 4k 8k available display

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Amazon expands Eero lineup with new Wi-Fi 7 mesh routers, starting at $170

techspot.com Kishalaya Kundu 2025-11-10 00:56:00

What just happened? Amazon has expanded its Wi-Fi 7 mesh router lineup with the introduction of two new products: the Eero 7 and Eero Pro 7. The launch comes nearly four months after the company released the Eero Outdoor 7 and more than a year after debuting the Eero Max 7. Both new routers deliver ultra-fast multi-gigabit connectivity, enhancing performance and reliability while reducing latency. According to Amazon, they are specifically designed for bandwidth-intensive networks and can keep

Topics: 99 eero ghz pack pro

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Latest Tech News

Things you can do with a Software Defined Radio (2024)

Fifty Things you can do with a Software Defined Radio

Get a Google Pixel 10? You need to change this display setting immediately

Elehear Beyond Pro Review: Big Hearing Aids

FCC chairman helps AT&T cement dominance with $23 billion spectrum deal

AT&T is spending $23 billion on new spectrum, but what will it do with it?

Control shopping cart wheels with your phone (2021)

Candle Flame Oscillations as a Clock

AMD Ryzen Threadripper 9980X and 9970X Review

AMD Ryzen Threadripper 9980X and 9970X Review: Zen 5 to the Extreme

Ultra-Rapid Vision in Birds

N78 band 5G NR recordings

Wi-Fi Experts Reveal How Trump’s Budget Bill Could Slow Down Your Wi-Fi

3 Best Hall Effect Keyboards for Gamers and Serious Typists (2025)

Alienware's 27-inch 280Hz QD-OLED monitor is now available for $550

The next big HDMI leap will change how you watch TV - what the 2.2 standard means

TaIrTe₄ photodetectors show promise for sensitive room-temperature THz sensing

Prime Day steal: OnePlus Pad price gets record drop to only $329

What Trump's 'big beautiful bill' means for Wi-Fi 6E and Wi-Fi 7 users (Hint: It's not pretty)

Wi-Fi in the US Could Get Worse Under Trump's New Law

Trump and Congress finalize law that could hurt your Wi-Fi

13 Best Wi-Fi Routers of 2025, Tested and Reviewed

Senate GOP budget bill has little-noticed provision that could hurt your Wi-Fi

The next big HDMI leap is coming soon - what the 2.2 standard means for you

6 Best Mesh Wi-Fi Systems (2025), Tested and Reviewed

Trump’s ‘big beautiful bill’ could mean slower Wi-Fi for you

The next big HDMI leap has arrived - here's how these 16K cables will shake things up

The next big HDMI leap is here - how new 'Ultra96' cables will shake things up

BOE unveils 8K 120Hz panel with 4K 240Hz dual-mode support for high-end monitors

Amazon expands Eero lineup with new Wi-Fi 7 mesh routers, starting at $170

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