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Band Decoder / Antenna Selector

Are you building your own automatic antenna switching system? The BCD-14 Band Decoder/ Antenna Selector module is an important component in it. A board level product, it includes the switching logic and relay drivers to easily interface between your Elecraft® K3, Yaesu® radio or computer and the antenna switches.

The BCD-14 decodes the band data signals from the radio or computer to automatically select the proper antenna or band pass filter for the current band. The inputs are optically isolated to provide maximum isolation between your radio or computer and the antenna switching system.

The outputs are grounding type open collector relay drivers. One output per band will be active, depending on the input signals. Outputs can be wired with jumpers to select a single antenna for multiple bands. For example one coax position on your switch may be used to select your tri-bander. With two jumpers on the BCD-14, the relay will be activated whenever your radio is set to 10, 15 or 20 meters. Order the optional HSD-9 if your antenna switch uses high side switching.

The BCD-14 covers all HF bands, 160-10 meters, including the WARC bands, plus 6M, 2M, and 440MHz.

Never transmit into the wrong antenna again!

Note: The BCD-10 has been discontinued and replaced with the BCD-14 utilizing a more modern design.


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Shipped assembled and tested as shown.


BCD-14 Band Decoder "e; Antenna Selector$23.95

BCD-14 Band Decoders may be ordered from:

DX Engineering logo     Ham Radio Outlet logo

NOTE: Each dealer may or may not carry or have stock on all products. Contact them directly for availability.

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