![AMEC SB-181 TX Switch Box [AMEC-SB181-010]](https://cdn11.bigcommerce.com/s-pwudhjmcl9/images/stencil/1280x1280/products/13314/17166/114147XL__82215.1778781091.jpg?c=1 "AMEC SB-181 TX Switch Box [AMEC-SB181-010]")
![AMEC SB-181 TX Switch Box [AMEC-SB181-010]](https://cdn11.bigcommerce.com/s-pwudhjmcl9/images/stencil/500x659/products/13314/17166/114147XL__82215.1778781091.jpg?c=1 "AMEC SB-181 TX Switch Box [AMEC-SB181-010]")
SB-181 TX Switch Box
The TX Switch Box SB-181 is specifically made to work with AMEC AIS Class B transceivers, both the 2W and 5W series. With its simple and robust design, silent mode (AIS transmission disabled) can be activated easily.
Owner's Manual (pdf)
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