SCR-300

[1] In 1940, Motorola (then the Galvin Manufacturing Company) received a contract from the War Department to develop a portable, battery powered voice radio receiver/transmitter for field use by infantry units.

The project engineering team consisted of Daniel E. Noble, who conceived of the design using frequency modulation, Henryk Magnuski who was the principal RF engineer, Marion Bond, Lloyd Morris, and Bill Vogel.

Along with other mobile FM tank and artillery radios such as the SCR-508 (20.0 to 27.9 MHz) and the SCR-608 (27.0 to 38.9 MHz), the SCR-300 marked the beginning of the transition of combat-net radio from low-HF (high frequency) AM/CW (amplitude modulated/ continuous wave) to low-VHF (very high frequency) FM.

The performance of the SCR-300 during those tests demonstrated its capacity to communicate through interference and the rugged quality of the design.

Colonel Ankenbrandt informed General Meade that "they are exactly what is needed for front line communications in this theater".