Wednesday, December 10, 2025

DIY Shielded Radio Kit


We can block 80-100+db across harmful frequencies👍 

I've been wanting to finish this project for years. Things are way easier to finish when you have a good workshop with the proper lighting. 

I present to you a Shielded RF kit that can withstand EMP and other hazards like lighting and moisture. Yes, the gasket is in great shape even if this surplus can has been in my garage for the past 7 years. 


Parts are very easy to find at the hardware & school supplies store. 

A few months ago I tested various RF blocking textiles and bags from Lazada. Thanks to the success of that early experiment, we were able to proceed with this project. 

I am able to block wifi, bluetooth, radio, up close and E1 & E3 pulses from high altitude.  

All major components are separated by ziploc bags, each with their own dessicant pouches. Its important to detach batteries, antennas, and all accessories.  

We have these Versa Alerto ham radios and my trusty Baofeng UV-88. They all have pouches on our plate carriers and chest rigs. Some of them are close to 10 years old but their batteries & spares are still good. I'll be acquiring more Baofengs later on so I can transition to USB-C charging for greater field longevity. 

I'm quite pleased at how everything turned out in the end. Everything fits inside a .50 cal ammo can and is light & compact.  Its also robust enough to handle heavy rain or even light submersion. This is definitely much easier to bring around for any occasion.

The only thing left is to add more Amateur Radio stickers and labels so its easy to spot.  Maybe a yellow ammo can would have been better. 😀 

This is just one of a few projects that I've completed in my new Workshop. Things are finally coming together.  Building stuff is terrific fun.👌 



Stay vigilant!