James H. Kemman passed away at the age of 70 after a battle with prostate cancer.
The longtime engineer for Electronics Research Inc. was still working for the company when he died, ERI announced.
Kemman previously worked for Silliman, Moffet and Kowolski, and later Silliman and Silliman, in Washington and Silver Spring, Md., for 23 years. His career began as chief engineer of WLAN(FM) in Lancaster, Pa.
Kemman is survived by his wife Ruth, a son and daughter and several grandchildren.