welcome

Make your radio perform its best.

We have over 30 years experience when it comes to CB radio sales, repair, installations and modifications.  We offer a complete line of CB radios, microphones, antennas and accesories for every application including installation kits for those do it yourself types.  This includes repairing radios to factory specifications, tuning and installing, aftermarket modifications including echo Connex boards, and heavy duty final power upgrades. 

We do not offer send in repairs at this time, unless you purchased a radio from us and it is under warranty.  Please call so we can look up your radio purchase.

3231 Adventureland Dr – Altoona, IA 50009

Hours: Monday – Friday 10am to 5pm- Saturday & Sunday: Closed

Call us

(515) 957-0873

Ask A Question

 We sell CB radios, antennas, microphones, and accessories.


We fix  CB Radios

Whether your radio is broke, in need of a tune up or it just isn’t performing like it should let Circuit Master CB’s trained technicians bring it back to life and work stronger than ever. All of our repairs are backed by our “job done right” warranty for your peace of mind.

Maybe you would like to customize your radio by adding colored LEDs, chrome, echo, talk back or whatever you like. No job is to big or to small.

Circuit Master CB offers in store “repairs while you wait” with service that is second to none and boasts the fastest turn around time in the business.

Our technicians can tune your radio for maximum performance including better power output and modulation with more punch.

So if you need a repair done right, modifications or custom accessories, Circuit Master CB is your one stop shop for all your radio needs. Call or Email us today!

We do not offer send in repairs at this time, unless you purchased a radio from us and it is under warranty.  Please call so we can look up your radio purchase.

We are conveniently located at the intersection of I-80 and I-35 at the Flying J travel center.

We Provide A Quote

We have years of experience to know exactly what its going to take to repair or modify your radio

Your Radio goes on the bench

We have worked on literary every radio manufactured in the last 25 years. So if it needs repaired or a “tune” for better performance, we can do it.

You Enjoy the Results

Will will give you back a radio that functions as good as (or better) than new. Our experience can make your radio talk and hear better than ever.

testimonials

Here’s What People Are Saying

Excellent shop! Had a CB antenna mount break inside my mirror housing. Pulled up to the shop and the tech came out and fixed it in less than an hour. Replaced corroded bits and radio system is good as new! Very reasonable cost/price for this quick service!!

Bought a connex cx-3400hp. These girls know there stuff. First place I’ve been that had all the answers to all my questions. I’m new to the CB world and they got me up and running right. Will definitely be a return customer

Excellent service, excellent communications on our repair. Four radios dropped off at the shop in the morning, I picked them all up, repaired and ready to go by mid-afternoon. Very impressed.