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LaNA is a very high performance, wideband LNA module designed for general purpose SDR applications.
Each module allows for 3 different power options, but you should only power with one option at any given time! The recommended power input through the SMA output port (for bias-tee capable SDRs like the NESDR SMArTee XTR) is 3V-5V DC. Alternatively, if you don't have a bias-tee capable SDR, you can use the external power options--the microUSB port, or DC barrel connector via the included DC to microUSB adapter. The recommended external power input is 3.3V-5.5V DC.
Though there is protection circuitry on LaNA for overvoltage conditions--and voltages of up to 12V DC should still work and will not damage the device--it is not recommended for long-term usage.
Each LaNA module has an internal EMI shield to protect the sensitive circuitry from external interference and is fully ESD-protected.