I have a AlexLoop mag loop antenna. My new shack has the antenna in the hallway outside my shack which makes it harder to tune the antenna. Typically I would watch the S meter on the radio’s front panel and using that and the highest noise be able to quickly get my antenna tuned. By moving it out of the room it became really hard to do the back and forth process to get it tuned correctly.
I wrote a small utility to make this process MUCh faster. This utility will read your radio’s S Meter using Hamlib and speak the value aloud to you once a second. Listen and Tune for highest S Meter reading. You can get the utility and instructions on my Github: https://github.com/jeff-luszcz/MagLoopTuner/
By default it is set up to use the FT-450D on /dev/ttyUSB0 and a baud rate of 38400. These can all be configured by editing the script.
N2TIQ's radio blog 