Another one to consider and I haven't seen it already listed, is the LabJack U12 along with its Piggyback.  The Piggyback schematic can be found at http://www.dk1tb.de/lj_piggyback.JPG.%C2%A0 The instructions for using the LabJack U12 are found under ?Hints (Rotor) Readme(Labjack.txt).  I think it cost me less than $20 in parts to build the Piggyback.  The Piggyback interfaces the LabJack U12 to the rotor control box; the U12 then interfaces with the computer via USB.  SatPC32 also shows the LabJack U3 but I am unfamiliar with the capabilities of it. LabJack U12 info can be found at https://labjack.com/products/u12The LabJack U3 info can be found at https://labjack.com/products/u3.%C2%A0 The U3 Piggyback schematic can be found at http://www.dk1tb.de/lj_piggyback_u3.JPG

I have 2 of these U12s and both are solid.  My first Piggyback I bought with Nova a long time ago.  I build the second one so that I made sure I had spares since I loan my equipment out for schools to have an ARISS contact. Hope this helps. 73,Charlie Sufana AJ9NOne of the ARISS mentors In a message dated 2019-03-07 07:39:46 Eastern Standard Time, johnbrier@gmail.com writes:

Below is a list of interfaces. Several of them are assembled or available assembled.

http://sats.wikidot.com/what-yaesu-g-5550-rotor-computer-interfaces-are-ther...

73, John Brier KG4AKV

P.S. You must have a big attic!

On Thu, Mar 7, 2019, 02:35 Les Rayburn les@highnoonfilm.com wrote:

With a lot of help from Marcus Thomas, KF4YHP I finally completed the installation of my Yaesu G-5500B Az-El rotor tonight. This will allow my 432, 2 Meter, and 1296 antennas inside my attic to finally track satellites throughout their passes.

I’d like to have computer control of the rotor using SatPC32. Can anyone point me towards an assembled interface that will work well?

Saw this on ebay, but not sure how well it will work with SatPC32. Any thoughts?

https://www.ebay.com/itm/USB-Rotator-control-interface-board-box-for-YAESU-G... < https://www.ebay.com/itm/USB-Rotator-control-interface-board-box-for-YAESU-G...

...

73,

Les Rayburn, N1LF Maylene, AL EM63nf AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member

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_______________________________________________ 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