GPIO Labs LNA can be powered using one of three different methods:
Micro USB
- Use a micro USB cable with one end connected to a power source like a laptop or battery. The battery provides a cleaner supply voltage than a laptop or mains will.
DC Header
- Use the DC header on the LNA module. The header or product page will tell you the voltage limits. All LNAs with the exception of one are designed to operate from a wide voltage range. Typically +5V to +10V or +3.3V to +20V
Bias T
- Some LNAs have a bias t included at the output. This circuit is shown below.
A receiver provides the DC to power the LNA.
If your receiver doesn't have a Bias T at its input, you can use the USB Bias T shown below
⚠️ Please note that the LNA should be powered by only one of these methods at a time. If you're using the Bias T, make sure there's no USB cable connected to the USB port and no DC supply connected to the header.