Business - GONZALES

Julie and Joe Gonzales
Julie and Joe Gonzales
Julie and Joe Gonzales
Julie and Joe Gonzales
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We run a small Internet business from home, called The School Amateur Radio Club Network. You can visit our website at We sell educational STEM kits and products all inspired by the projects and the work we do with schools. We have sometimes set up trading tables at The Melbourne Train and Hobby Show and at local Amateur Radio Hamfests. This page is really all about the fun we are having running our hobby business at home.

Julie and Joe at The Melbourne Train and Hobby Show
We manufacture and sell a small, portable Satellite Antenna Rotator Controller and TRACker called SARCTRAC.

It is used to point a small antenna at any one of thousands of orbiting satellites, including the International Space Station. By connecting the antenna to a radio you can receive and sometimes transmit signals to the orbiting platform.

SARCTRAC Mk2 - Portable Setup, Satellite Selection Page, Demonstration Setup
SARCTRAC Production
Here are some pictures of our home production process for SARCTRAC.

SARCTAC Assembly

SARCNET Development and SARCTRAC Coding

1. Assembling the cover

2. Machining the enclosure

3. Counter-sinking and deburring the enclosure

4. Machining the aluminium, finned heatsink

5. Cutting and tinning the hookup wire

6. Wiring the motor

7. Testing the beeper and motor

8. Wiring the beeper

9. Wiring the regulator

10. Wiring the 3D accelerometer/magnetometer

11. Crimping the motor driver cable

12. Wiring the power cable with integrated schottky diode

13. Crimping the Raspberry Pi wiring harness

14. Modifying the motor driver

15. Installing the grommet, heatsink, label and standoffs

16. Installing the Raspberry Pi wiring harness

17. Installing the motors

18. Installing the motor driver and power cable

19. Programming the micro SDHC card and USB disk

20. Installing the Raspberry Pi and GPS receiver assembly

21. Installing the beeper and cable assembly

22. Assembling the test stand

23. Assembling the test lift-arm

24. Setting to work

25. Calibrating the 3D magnetometer/accelerometer

26. Testing

27. Initializing SARCTRAC and the SARCTRAC USB Disk

28. Packing and posting

Completed SARCTRAC Assembly

SARCTRAC Calibrating and Testing

Packaging and Posting
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