4mm Ferrite Bead

Ferrite bead with 4mm internal diameter.  Some radios, notably certain model Baofengs, will latch their PTT due to the RF induced in the speaker/mic cable.  This even happens with the earpiece shipped with the radios and may happen with the TNC as well.  This ferrite bead will minimize that problem with these radios.

Shipping Notice

If you need expedited delivery inside or outside the US, we recommend UPS for delivery. Shipments outside the US will almost certainly incur VAT, duty and brokerage fees payable to UPS before delivery is made. You are responsible for paying these fees.

Orders are typically processed within 48 hours.

We now offer free domestic shipping on orders over $200!

For our German customers, please consider purchasing from Funktechnik Dathe. They offer excellent local sales, service and support.

Customers outside the US are responsible for all local taxes, import duties, tariffs, and fees.

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