[Hackrf-dev] power

Cinaed Simson cinaed.simson at gmail.com
Tue Mar 8 20:18:44 EST 2016


Hi - I'd like to increase the TX power of the HackRF to 50 mW.

First, I disable TX.

Since the dBm=0, this implies the power output will be on the order of 1
mW.

Then I add an external LNA with a gain of 44 dB on the RF band I'm
transmitting on which raises the TX power of the HackRF to 44 mW.

The antenna has a gain of 6 dB - the cable and connector losses are on
the order of 1 dB, so the maximum effective power is 49 mW.

I'm assuming this independent of the IF gain.

So I could smoke the TX amplifier on HackRF and still be able to use the
HackRF to TX at roughly 17 dBm :).

-- Cinaed



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