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C3 Electronics LLC
Wisconsin's Bandpass Filter Resource
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Our Bandpass Filter Products
Testimonials
Our Club uses C3 Electronics LLC Bandpass filters every time we go out together to activate in POTA. We sit within 1000 sq ft radius and have 3-4 different bands operating without any interference. Usually we have one operator using FT8 while the other operators are operating on voice (SSB). We couldn't be happier with this great product and the bundles make it very economic for small clubs to purchase.
We searched for bandpass filters previous years and had a difficult time locating them in the United States. Most of the ones we found were from China and required purchasing quantities of 25 of the same bandpass filter and then waiting for 25 days for it to be shipped. Their prices seemed good until you found out how much the shipping cost was and the amount of filters you had to order at one time....No Thank you....our club will stay with "Made in the USA" products that C3 Electronics LLC provides. We received our filters in 3-5 days from time of placing our order....Great products and Great Service made our activations spectacular and very fun.
Definitely recommend this company's products....5 Stars!
Wolf River Amateur Radio Club
This bandpass filter works amazing! I have a few and non of them have failed me. Checking it against other bandpasses I'v seen has shown C3 really takes pride in their work. It fits perfect in my go bag and looks good with my pota setup. I will be getting more and I don't go out without it. Very impressed!
Unknown member
July 03, 2024
It’s a nice little product. Very passionate about what they’re selling. She’s the real deal and down-to-earth person. I’m sure it’ll come in handy for doing field day operations.
Guest
June 15, 2024
HIGH-QUALITY, PRECISE PRODUCTS
C3 Electronics LLC takes pride in manufacturing high-quality bandpass filters for amateur radio enthusiasts looking to suppress RF interference while operating in close proximity with other operators.
Our products work great for Field Day operations, POTA, in campers or apartment complexes, or whenever you want to work closely with friends or other operators on amateur radio HF bands.
We are passionate about satisfying our customers amateur radio experiences with our products. Visit our Shop page to place an order or visit one of our booths at swapfests to see the quality of our products being displayed or Nano VNA tested.
Locally made in Wisconsin...Help Keep America Great--Buy Our USA Made Products!
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Sleek Design
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Quality Tested for Low SWR and Low Insertion Loss
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Quality Workmanship
and Low-Cost Product
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Available in 10M, 15M, 17M, 20M, 40M, 60M, and 80M Bands
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SO-239 Connections to the radio and antenna
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1-Year Repair/Replacement Warranty
Partial Inside View
REFINING YOUR SIGNAL EFFICIENTLY.
Empower
Growth
Have you encountered a Field Day or POTA activation that has interference from other operators transmitters? Would you like to transmit without disrupting other amateur operators?
C3 Electronics LLC has a solution to reduce unwanted interference through the use of low-cost, highly-efficient bandpass filters built in Weyauwega, WI.
C3 Electronics LLC manufactures a signal processing filter to provide a very tight frequency response in the passband. Our filters have a -3dBd cutoff point (low-cutoff and high-cutoff) that indicate points on the lower end and upper end where the power reduces to half. Our products are rated to 100 watts or less and provide quality SWR and insertion loss readings.
If you are looking for a bandpass filter with no ripple in the band pass or stop band, our filters provide you with the best solution between attenuation and phase response.
See our bandpass filters in action in a video below and view our product review page to hear what other customers think about our products.
