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Are you building your own antenna switching system? The BCD-10 and BCD-14 Band Decoder/
Antenna Selector modules are an important component in it. Board level products, they include
the switching logic and relay drivers to easily interface between your Elecraft® K3, Yaesu® radio
or computer and the antenna switches.
The BCD-10/14 decode the band select 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 will be active, depending on the input signals. Outputs can be wired OR'd to select a single antenna for multiple bands. For example one relay may be used to select your tribander. With two jumpers on the BCD-10, the relay will be activated whenever your radio is set to 10, 15 or 20 meters. The BCD-10 covers all bands, 160-10 meters, including the WARC bands. The BCD-14 includes all the same bands covered by the BCD-10, plus 6M, 2M, and 440MHz. Both boards are the same size and have the same mounting hole positions. If the antenna or filter switch you wish to control requires high side drivers, add the HSD-9 module. Documentation:
Pricing and Ordering |
BCD-10 
BCD-14 |
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