AMEC SB-181 TX Switch Box [AMEC-SB181-010] Marine Hardware | Hatches High Frequency: 150 kHz to

High Frequency: 150 kHz to 250 kHz for superior shallow water performance

8 MHz Impedance (Ohms): 50 Gain: 3 dB Max Input (Watts): 50 DC Ground: NO Termination: 15' RG-58 cable Height (feet): 5 Polarization: Vertical Radiation pattern: Omni-directional Specifications:

batteries purchased separately)

Dimension: 13

Box Dimensions: 2"H x 2"W x 40"L WT: 2 lbs

AMEC SB-181 TX Switch Box [AMEC-SB181-010] Marine Hardware | Hatches High Frequency: 150 kHz toSB 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)