Sandra Welfeld

Operations and Content Associate

10 post(s)

Sandra Welfeld is an Operations and Content Associate at D-Fend Solutions. She has a strong passion for all things content, and brings vast experience in B2B marketing.

C-UAS in a Backpack. Protection on the Move.

November 13, 2023 | Sandra Welfeld

When D-Fend announced the launch of EnforceAir2 a few months ago, the many benefits that the new system offers became very clear, including enhanced, ...

Enhancing RF- Cyber C-UAS Dynamics with Multiuse Deployment Bundles

October 18, 2023 | Sandra Welfeld

D-Fend Solutions has recently taken a transformative step, concurrent with the introduction of EnforceAir2 , in offering new Multiuse Deployment Bundles ...

EnforceAir2: A Production of C-UAS Power and Portability for Premium Performance

September 26, 2023 | Sandra Welfeld

D-Fend Solutions is proud to introduce EnforceAir2 – a next generation, counter-drone solution that delivers more power, performance, portability, ...

Remote ID – What Does it Mean for C-UAS?

September 12, 2023 | Sandra Welfeld

Remote ID (RID) refers to a drone’s transmission of its location and certain identification data in a standardized, public, and non-encrypted format. ...

Jamming Spikes, Flare-Ups, and Side Effects

April 13, 2023 | Sandra Welfeld

In a series of recent blog posts focused on airport drone mitigation , Mark Rutherford , our Sales Director in the UK, explained what is jamming, its ...

Prison security enhanced with Autel EVO drone

Drones at Prisons: “Everything Everywhere All at Once”

February 16, 2023 | Sandra Welfeld

The start of 2023 has seen drone incidents at prisons happening everywhere, which brings to mind the title of the current movie “ Everything Everywhere ...

Goodbye 2022, Hello 2023 – Drone and Counter-Drone Developments and Observations

January 16, 2023 | Sandra Welfeld

As we get older, it seems that we celebrate the New Year more frequently, doesn’t it? I mean, it feels like the year gets shorter and shorter, even ...

Drone Proliferation – Safeguarding the Good, Countering the Bad

November 10, 2022 | Sandra Welfeld

There are thousands of drone companies today, some focused on specific vertical industry fields or sectors, others on more horizontal general commercial, ...

A crowd of tourists gathers at a scenic overlook, with a drone hovering above capturing the landscape of Brazil

Drone Threats in the Country of the Future

August 23, 2022 | Sandra Welfeld

I was born and grew up in Brazil. Back then, there was so much hope, and Brazil was often called “The Country of the Future.” (Even though this hopeful ...

Dangerous Drones: Hostile Flying Objects or Virus-Infected UAVs?

April 27, 2022 | Sandra Welfeld

Although it sounds like a weird question, truth is, there is some logic to it… There are drones, and there are rogue drones. Commercial and DIY drone ...