Stop RF in the Shack. Protect Your Investment
You’ve spent thousands on your radio gear—don't let Common Mode Current ruin your rig. We build high-performance chokes using Messi & Paoloni components to eliminate ferrite interference and stabilize your signal.
Precision Engineering for Serious Operators
At The ELMER Brand, we believe that if you’ve invested $100s to many $1000s of dollars into your radio gear, you shouldn’t leave your performance—or your safety—to chance. We specialize in the engineering and assembly of professional-grade Common Mode Current Chokes (CMCCs) designed to keep RF energy exactly where it belongs: on your antenna.
Experience the gold standard in portable RF protection with our custom-built POTA Edition Common Mode Current Choke. Engineered specifically for the rigorous demands of Parks on the Air and mobile operations, this choke is handcrafted using genuine Messi & Paoloni “POTA 7” coax and high-precision M&P connectors (1-PL259 & 1-SO239) for ultra-low loss and maximum durability. To ensure your signal remains clean and your station stays safe from RFI, we utilize seven Fair-Rite Type 31 ferrites, providing superior suppression across the HF bands.
Because we believe professional gear should reflect the operator, you can fully customize your choke with your choice of tubing color and personalized text featuring your CallSign or CallSign & Name. For those looking to protect their rig's SO239 from physical strain, we offer an optional 90-degree PL259 connector—perfect for ensuring your coax lays flat on the table during a busy activation. Each unit is custom-assembled and typically ships within 3–5 working days, giving you a field-ready, personalized solution that ensures if you can hear them, you can work them.
89.95
Optimize your ultralight setup with The ELMER Brand QRP Series Common Mode Choke. Specifically designed for the weight-conscious operator, this choke features the high-performance Messi & Paoloni “Airborne 5” coax, delivering exceptional power handling in a smaller, more flexible footprint. Equipped with premium M&P BNC connectors (1-Male, 1-Female), this unit ensures a secure, low-loss connection for your QRP rig. To keep your noise floor low and your efficiency high, we utilize your choice of five or seven Fair-Rite Type 31 ferrites, providing laboratory-grade suppression for your portable activations.
Like all ELMER Brand products, your QRP choke is built to reflect your station. Personalize your gear with a custom tubing color and CallSign or CallSign & Name printed directly on the unit. For operators using adapters or desktop setups, we offer an optional 90-degree PL259 upgrade to relieve physical stress on your radio's connector. Hand-assembled and typically shipped within 3–5 working days, this is the essential tool for any QRP operator who refuses to let RFI compromise their signal.
