How to Use LabSat 4 with a High-Bias Antenna
This page contains information about how to connect the equipment when you want to use a third-party high-bias antenna with LabSat 4.
If you connect LabSat 4 to an antenna that requires a higher bias voltage (e.g. 12 V), you must supply the antenna bias and insert an appropriate DC block at the RF IN connector to avoid damaging the LabSat 4 unit.
Using a Bias-Tee will allow you to connect a separate voltage supply at the appropriate voltage of your antenna, while blocking the DC voltage to the LabSat RF IN port allowing RF to pass. We would recommend using a Bias-Tee from a reputable manufacturer, such as the ZFBT-282-1.5A+ from Mini-Circuits.
