RadioPrep

05/01/2026

Another stack of antennas headed to the post office!

04/24/2026

Make a statement along with your signal! We have limited amount of super cool transformers! Get one here: https://radioprep.etsy.com

01/02/2026

Another batch of EFHWs out the door on the last day of 2025! Looking forward to another great year!! https://radioprep.etsy.com

07/27/2025

We're getting very close to the release of our next product...a higher powered version of our EFHW transformer! Thank DeltauniformoneTango Kitch for helping test the prototype with his 80m man-pack!

07/02/2025

June has been a difficult month. Thanks to my ham friends who made it little easier.

My mom, June Chenault. Over the past month, our family has experienced a deep loss with the passing of my mother at the age of 88. She had b...

06/05/2025

Building night! More transformers in the workbench. https://radioprep.etsy.com

05/30/2025

Another batch boxed up and headed out! Thanks Dennis, Dustin, Celeb, Forrest, Josh, Aaron, Suzan and Ben! Enjoy!

05/10/2025

Heading out!
Two more EFHW antenna orders headed into the wild—one to the mountains, one to the coast (or at least that’s what I like to imagine).

Hand-built, tested, and packed with care—because every contact counts.

Thanks to all of you who continue to support small radio makers. You keep the airwaves alive!

03/26/2025

If you’re running QRP and want something light, compact, and field-ready — this 49:1 EFHW transformer is for you. It’s my go-to for portable ops and works great for SOTA, POTA, or even stealth backyard setups.

🔸 Built for 10 watts max
🔸 Super compact
🔸 Rugged hardware

Each one is made by hand and shipped out with care. You can grab one now on Etsy: https://radioprep.etsy.com
Let me know where you’re taking yours!

73 - Dave

03/26/2025

KITs of our EFHW are now available!

I'm thrilled to unveil the latest addition to our product lineup: the DIY Edition of our EFHW (End-Fed Half-Wave) Antenna Transformer Kits. ...

03/26/2025

After I'm excited about the latest addition to my line of EFHW antennas! After a few request from folks and building upon the success of my original model, I've created a new version featuring a completely different connector system.
My original EFHW antenna, with its compact design and reliable 2mm banana connector, remains a popular choice for many hams.

The new model uses a robust lever-lock connector (similar to the Wago design) that accommodates a wide range of bare wire sizes, from 24 AWG to 14 AWG.