ATC, voice communication system contacts


New member
Jul 9, 2002
Total Time
We have a large ATC, voice communication system that was made in 1996 by Lockheed Missle & Space Co. & Thompson CSF of France for the Portuguese Airspace Control Agency, that is available for sale.

It is unused and never installed. It is a S4 system that was manufactured by Intelect Inc. of Richardson, TX USA. Outside of this offering, Guardian Electronics of Terrell, TX USA is the sole supplier of this product.

We are trying to contact/notify the ATC centers that already have this type of voice switch to see if they would have interest in obtaining any of this system for expansion or spare parts.

Do you know of any group or organization that offers a bulletin board or other method to distribute this notice to the communication manager of the ATC towers worldwide ?

Also, could you please let us know of any organization, group or other source that would have record of where the different types of voice switches are installed around the world?

Please feel free to forward this notice to anyone that may have interest.

Thanking you in advance for any information, ideas or feedback you can supply to us.

Clete Hillseth
Sundance Supply Co
Pleasanton, CA 94566 USA
Tel: (925) 484-5502