I write about the electromagnetic spectrum as a battlefield domain, translating complex physics, sensing, communications, and electronic warfare concepts into practical lessons for modern military leaders.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 52 | Founded | 9 months ago | Last Issue | 9 days ago |
| Active | |||||
Read this Newsletter
ems2025.substack.comLatest Issues
How A Radar Turns an Echo Into A Target
I’ve had a couple of young leaders reach out to understand how a radar works, from the moment it transmits electromagnetic energy to where the radar understands that there is a drone or rocket incoming. Between a radar signal leaving the an...
The Drone That Radar Wasn’t Built to See
I remember while deployed my unit had a Lightweight Counter Mortar Radar (LCMR) that provided us warning and targets for whoever was shooting mortars or artillery at us in Afghanistan. I was always amazed that this little radar could give u...
From Echoes to Electromagnetic Warfare: A Military History of Radar
As I start to get into the world of Raspberry Pis (think tiny little computer) and antennas, I realized one thing I haven’t researched is radar. I figured if I could build not just a passive RF (radio frequency) sensor but a radar, it would...
The Physics of a Dead Signal
A reader asked me a great question last week: why does placing a radio next to a metal building kill your signal? I asked this question as a young lieutenant and was told by my NCO that “it just does.” The real answer places us in the world...
What Can This Antenna See?
While building Spectrum Sensor Node Alpha, I ran into a problem that seemed like it should have had a simple answer.
I had a software-defined radio connected to a Raspberry Pi. The receiver could scan across a large portion of the radio-fr...
Audience Metrics
Subscribers, engagement, traffic and sponsorship for EMS's Substack.
| Subscribers | Engagement | 71 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Explore More
Authors
The writers behind this newsletter.
Army officer writing on the electromagnetic spectrum. I translate physics, sensing, communications, and electronic warfare into practical lessons for leaders preparing for modern conflict; making the invisible battlefield visible.
Frequently Asked Questions
How can I access the email archive for EMS's Substack?
You can find recent issues that have been published by EMS's Substack on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does EMS's Substack have?
To see how many people subscribe to EMS's Substack, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in EMS's Substack?
Newsletter advertising can be extremely effective when it's done right. Before you pitch EMS's Substack as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like EMS's Substack?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact EMS's Substack using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to EMS's Substack?
Scroll up to where it says Related Newsletters to see other publications like EMS's Substack. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact EMS's Substack?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.