Kraettli Epperso6 is CEO of Vigilant Aerospace Systems, a leading developer of multi-sensor detect-and-avoid and airspace management software for uncrewed aircraft systems, enabling safe and scalable beyond-visual-line-of-sight operations. Their flagship product, FlightHorizon™, is built on two NASA patents and integrates data from multiple sources to provide real-time air traffic awareness and automatic avoidance maneuvers, preventing collisions and ensuring seamless UAS integration into national airspace. In 2023, Vigilant Aerospace was awarded a contract by the U.S. Air Force to develop a detect-and-avoid system for their long-endurance UAS, reinforcing their position as a key player in aerospace innovation. The company was also recognized as the Aerospace Innovator of the Year by 405 Business Magazine, highlighting its contributions to advancing safety and efficiency in autonomous systems. In addition to FlightHorizon™, Vigilant Aerospace provides integration and consulting services, working with partners like DronePort Network to support regional airspace management and economic development initiatives. Kraettli brings extensive expertise in uncrewed aircraft technology and airspace management. As CEO of Vigilant Aerospace, he oversees the company's contracts with NASA, the FAA, and the U.S. Air Force, and has participated in over 45 uncrewed aircraft flight tests. A recognized industry leader, he serves on the FAA’s BVLOS Aviation Rulemaking Committee, is a member of the ASTM F38 Committee on UAS technical standards, and has co-authored multiple AIAA papers on autonomy and collision avoidance systems. He is also the co-inventor of four technology patents, shaping the future of autonomous aviation. In this episode of the drone radio show, Kraettli talks about Vigilant Aerospace, it’s detect-and-avoid system and how organizations are using drones to advance economic development.

Using Drones to Support Regional Economic Development: Kraettli Epperson

The development of the popular Jamaican style is audible in this fun-packed, loosely chronological selection of tunes, moving from a US-style shuffle to ska to rock steady, toasting, dub, and Rastafarian reggae. Programmed by and using the record collection of reggae connoisseur and KPFK radio host Chuck Foster. Produced by Ned Sublette. Consulting scholar and guest programmer: Chuck Foster, who is still on the air 33 years later!

Ten Tunes That Shook Kingston

Charles Green: 30 years of El-B Special - 02 June 2025

NLDC17 - AmenRa B2B Blackdown (Roots of dubstep set live at North London Dub Club 2024)

Amen Ra (LHF) Live at Paloma Bar, Berlin (3rd October 2025)

One of the defining producers of the 21st century steps up for a rare, era-spanning mix.

We've been in a reflective mood lately: mulling emergent icons, modern classic and the cyclical nature of trends. All things bend around eventually, but if you lived through the mid-'00s the first time, it felt tricky to envision some specifics of those interim years making a second splash. More fool us. Amongst many other things, dubstep is well and truly back.

This resurged appetite for low-end has been a central storyline in 2025. Clear tells were there in the form of Introspekt's Moving The Center and Tracey's "Sex Life," two major highlights of the past 12 months. Alternately, cup your ear to the tremors rumbling across the world and you'd find Mala packing up crowds with gusto. Which makes closing out the year with a mix from the man himself serendipitous.

The South Norwood-born sub sensei has held an anchor role in the movement since its earliest days. A little like what Upsetter was to Black Ark, the principles Mala, Coki and Loefah's DMZ laid down have been expanded on by Deep Medi, a label that has cultivated a loyal fandom who watch over the catalogue like a hawk. (Six years of frothy debate and knowing in-jokes between MEDi 99 and MEDi 100 paints a picture of both steep expectations and an affinity for gently ribbing their leader.)

But Mala's banner 2025 hasn't relied on the heads alone. The adrenaline of his fissuring basslines and barrel-chested vocals have drawn people into his orbit, and there are rarer qualities at play, too—like pacifism, winked at by the demilitarized name and reinforced on their all-time greatest tune; or contemplation, inked on flyers beseeching the crowd to meditate on bass weight.

In that spirit arrives a mix we've asked after for years. Subtitled The Listening Session, it's rare on two counts. Despite his enduring popularity, Mala is a conspicuous absence on most DJ series. (It's not that he doesn't enjoy recording, just gets spooked by the reaction.)

A nearly-three hour studio set—spaciously paced and laced with a combination of 2025 highlights, freshly-cut dubplates and some of the biggest anthems in the genre's history—is unheard of. No tracklist for now, on Mala's request. Soon come.

RA.1016 is the kind of document that jogs the memory back to when dubstep was a discrete enterprise, something you could only fleetingly access by, say, dialling into Youngsta on Sub FM, ripping 320s of "Circling" off long-forgotten blogs or hugging the back wall of Mass. Which, in service of thinking the evolution of 21st century electronic music, is pretty perfect really.  – Gabriel Szatan

Find the interview at ra.co/podcast/1035

@maladmz
@deep-medi-musik

Using Drones to Support Regional Economic Development: Kraettli Epperson

Drone Radio Show