Defense contractors and U.S. Navy leaders will gather April 22-24 at the Hall of Champions in Balboa Park to talk shop, and talk about technology.

The occasion is the 36th symposium put on by the local chapter of the Armed Forces Communications and Electronics Association.

The symposium centers on C4ISR, a military term that stands for command, control, communications, computers, intelligence, surveillance and reconnaissance.

Visit: for information and registration.