Kd1mu Radio Store
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RAdios and Accessories for Hobbyists & proS

We offer a range of equipment for fun and emergency communications. This includes fast small DMR radios. We also have LiFePO4 batteries. Additionally, we have repeaters and custom ham and GMRS antennas. Our tools help keep everything working.

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ANNOUNCEMENTS

Baofeng UV13Pro / UV17R Plus on sale for $20 + $5.00 shipping.

KD1MU UV5118 Plus on sales for $25 + $5.00 shipping

New: Type N Male and PL-259 Connectors. Available in Crimp-on and Solder-on.

LifePO4 20AH On order. Chargers now available on Amazon.

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Premium products

Curated radios and in-house designed accessories focus on durability and quality. All products come from ISO 9000 manufacturers.

Thousands of satisfied customers

The popular KD1MU DM-4R is offered under multiple brands. Thousands sold with positive reviews.

Flat Rate Shipping

We offer flat rate shipping to the US and US Territories. Products delivered by USPS Ground Advantage.

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Happy Customers

KD1MU is highly rated on Amazon, AliExpress, and Facebook for its great service and products. As a value-added reseller, we’re here to assist you with any issues. Whether you need help writing your first DMR code plug or fixing an off-frequency hotspot, we’ve got your back.

Accessories

Programming cables, antennas, LiFePO4 batteries, and more. Our Accessories are curated or designed by our team to meeting the needs of radio operators.

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Radios

We offer Dual Band analog and DMR Amateur radios along with Repeaters and the new Multi Band hand-hands. We only offer FC Certified radios from ISO 9000 Certified shops.

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LiFePO4 Batteries

Our LiFePO4 batteries are built to our specifications. Features like Power Pole connectors, high current delivery and full safety protection. Our batteries are built by ISO 9000 Shops and Carry UN38.3 Certification.

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Stories by our customers

Customer Testimonials

Testimonials straight from Amazon, AliExpress, and Kd1mu-radio reviews.

“A lot of power that just fits in a manpack radio bag. Stumbled on to this battery while doing an exhaustive search for a battery to fit in a manpack I was building. This came highly recommended and was a snug fit. So far it’s performing great. A much better price than other less powerful solutions that I was considering.”

L. Fairall

Amazon LiFePO4 Buyer

“I’m a ham radio operator and use LiFePo 4s exclusively. Other purposes include camping applications – recharging phones and other battery-operated items. Add up all your mAH needs, you’ll get plenty of charges off these. And they’re affordable.”

Amazon Customer

Amazon LiFePO4 Buyer

(DM-4R) A MUST TO HAVE Radio I do recommend it. THE BEST DMR and economic Radio It has to stay in the market ! Everything IS THE BEST. Lots of features available.”



Amazon Customer

Amazon DM-4R Buyer

“Nice Radio for the Money had appears it has Auto Talker Alias that works !! For the Money this is a very decent radio, software was simple I actually am really impressed.”





Joe Augustine

Amazon DM-4R Buyer

“I found this to be an excellent little radio; sound quality and build is very good. The CPS software was a pleasure to use by far the easiest radio to program. If you are familiar with the DMR structure you will have no problem. If you are not then you will struggle, and the struggle is the same with ALL DMR radios. Go slow and learn the DMR structure and this will make you a fine radio.73”

David Smith

Amazon DM-4R Buyer

“I would not call this an entry-level radio. It does have a few quirks that could scare away newcomers. The biggest problem people have getting into DMR is learning how to program the radio. This is a problem with *ALL* DMR Radios!
I have several similar radios and I can tell you this one is the best value for the money on the market right now.”

Jesse Rhoads

Amazon DM-4R Buyer

Technology News

View Our Latest Posts and Feeds

Latest radio news from Kd1mu, the Kd1mu Radio Store staff, and guests. Topics include reviews, FCC news, Radio tips and tricks, and our own personal projects.

Posts

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    Managing AI’s Memory is Part of the Job

    After discovering the protocol mismatch, I built a small Node.js adapter to translate between browser‑friendly WebSockets and device‑friendly Protobufs/TCP. AI helped me build it quickly. But as the project grew, a new pattern emerged: AI has limited short‑term memory. Every time I asked it to refactor or extend the adapter, it would forget something…

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  • AI Accelerates Execution Not Direction

    AI Accelerates Execution Not Direction

    I am not a professional software developer. I’ve worked in product management for the past 36 years, but have written a reasonable amount of code for myself. I decided to try co-writing a some software using AI. I chose Copilot because it was available. This is my experience. Please don’t comment on how Copilot…

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  • Drilled through the flue

    Drilled through the flue

    I drilled a 1 inch hole through what appears to be 1 to 2 inches of ceramic flue. This is an old incinerator flue that hasn’t been used for 40 or so years and we use it as a cable shaft. I drilled a 1 inch hole to accommodate the PL259 already on the…

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KD1MU Radio Store

Radio Operators selling to Ham, GMRS, and Commercial Radio Operators

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