Project FOX DELTA ST2 Antenna Rotator Interface

ST2-RS232 is an advanced Satellite Antenna Tracking Interface for Yaesu (Or similar) Rotor Controllers based on LVB Tracker Firmware. Project uses PIC16F976A, 28PIN DIP. Firmware uses full A/D and EEprom capability of 876A and make setup a smooth process.

For many years I used a light duty TV rotator to turn my 3 element VHF TV DX Yagi antenna. Unfortunately the controller makes an awful lot of acoustical noise. So I decided to build a new controller for HAM Radio. My goal was a new controller which the old one replaces, is totally quiet, more accurate and writes the position on a back-lite LCD display.
The original project can be found at http://www.foxdelta.com/products/st2-rs232-last.htm. I have done some hardware modifications:

- built in Az/El Rotor relays
- internal Power supply

FT-991A setup for SatPC32 and Foxdelta ST2 Interface

You need to download and install the Yaesu COM Port virtual drivers: FT-991A/ SCU-17 USB Driver (Virtual COM Port Driver) Make sure YAESU virtual COM Port driver installed correcly on your PC. Open the -Setup- menu, -Radio setup-. Click on the control of the combo box in the upper section of the window 'Yaesu II'. Select model 'FT-991A' . Check COM Port Address on your PC Device Manager and setup it.

Baudrate Setup. Click the top pulldown menu, click Baud and then choose the Baud rate set in the radio.Check the setup of the radio to make sure the setting for it are compatible with what is entered in Sat32PC. RTS +12V and DTR +12V ,etc must be ON !