Here are some of the popular rotor interfaces in no particular order.

LVB Tracker from AMSAT https://www.amsat.org/product/lvb-tracker-complete/

ERC-M http://www.vibroplex.com/contents/en-us/d79.html

EA4TX controller https://ea4tx.com/en/products-page/ars-usb/

Fox Delta ST2 http://www.foxdelta.com/products/st2-rs232.htm

Green Heron RT21 https://www.greenheronengineering.com/RT_Overview.php

Dave-KB1PVH

Sent from my Galaxy S9

On Tue, Aug 14, 2018, 8:05 PM Larry lmwatbullrun@runbox.com wrote:

If I may impose further on the group, thanks to your assistance I am able to get Gpredict to do what I need to do, and have configured the software to match my radio and rotators. I am looking for hardware recommendations for a board that I can plug into my shack computer and use as an interface between that and my new-to-me G5500. I would welcome any thoughts or suggestions you folks might have.

Larry W8ANT _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb