June 12, 2019

Installing a TCXO in the HackRF One

There is a many old manuals how to install TCXO. Like this https://ceworkbench.wordpress.com/2016/11/01/installing-a-tcxo-in-the-hackrf-one/

But I had two unresolved questions after.

First. All photos in manuals didn't show what exact pins must be inserted. I found it only on some aliexpress seller photos.

My TCXO on Board. First pin in first row and second pin in 6th row.

Second. Previous version of HackRF tools had hackrf_si5351c but new one don't. A new utility, hackrf_debug, replaces three older debug utilities, hackrf_si5351c, hackrf_max2837, and hackrf_rffc5071. (HackRF 2017.02.1 Release Notes)

To check TCXO execute the command:

hackrf_debug --si5351c -n 0 -r

If you get the response:

[ 0] -> 0x01

the HackRF has recognized and is using the TCXO.