Episode 45: HackRF sensitivity (-135dBm) !!!

In this video I measure the sensitivity of my HackRF using my Siglent SDG 1032X, the spectrum analyzer HP 8591E and the SDRAngle software.

[XBKLYN]

Hi...thanks for the nice video. There are a few ways to measure rx sensitivity depending on the type of receiver in use but generally speaking two numbers are used to describe this specification. The first number is the desired minimum output of the radio and the second number is the input value needed to produce the required output. In the old days of analog radio we would say, for example, that -110dBm of input signal is required to produce 20dB of quieting on the audio output circuit, i.e speaker. If the radio is digital you could specify a particular bit error rate on the output vs. required input signal to maintain minimum BER. With all that said I would keep raising input power until output is 20dB above noise floor and consider that my minimum usable rx sensitivity. I think with that output criterion you'll find the HackRF to be quite deaf! Of course this should be of no surprise as the bandwidth of the unit is answer no doubt is to use pre-amps! I enjoy your videos and thanks for taking the time to explain the HackRF universe.

[Bitonio]

This is not bad ! I expected Hackrf can't much handle at this frequency and signal.

[alejandropinarruiz]

You should try measuring in other frequencies, as far as I know, the hackrf has various sensitivities on diffrent ranges