Thanks, Jorge!

I checked out your blog about the homebrew AZ-EL rotator. That’s a really nice project!

73,

--Alex KR1ST

From: Jorge via AMSAT-BB amsat-bb@amsat.org Sent: Sunday, February 5, 2023 3:58 PM To: amsat-bb@amsat.org Subject: [AMSAT-BB] Re: LVBTracker firmware modified to allow for more azimuth calibration points.

Great job Alex! It looks like a good update for my old tracker.

73, Jorge LU1DA

El 4/2/2023 a las 2:43 a. m., Alex Krist via AMSAT-BB escribió:

Hi there,

A while ago, perhaps almost two years ago, I modified the LVBTracker firmware in my Fox Delta ST2-USB so that it would allow for more calibration points than just the min and max for azimuth. I had added a remote-control option to an old Yaesu G-450XL, but the output voltage was very non-linear, which led to terrible aiming of the antennas. With the mods I made to the firmware it now allows me to calibrate the controller at 0, 90, 180, 270, and 360 degrees and aiming is now rather accurate. I wrote about it here:

https://thehamlab.com/2023/02/02/fox-delta-st2-lvbtracker-calibration-mods/

If you feel this could be useful for you, the source code for the project can be found on GitHub:

https://github.com/TheHamLab/LVBTracker.KR1ST

73,

--Alex KR1ST

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