Radio

Evolution of radios used within the railroad industry

The very first radios with widespread use were the Motorola Motrac, and later the Motran. The Motrac was originally a vehicular radio intended for civil services, with GreenRadio labeling it as "Motorola's most successful entry into the Land Mobile Radio market" being the first radio in the US, and possibly the world to have a fully transistorized receiver. The sucsesser to the Motrac, the Motran, was essentially an upgraded version of the Motrac. Railroads adopted a locomotive-specific variation of the Motrac, (see photo), and from 1958 on, this became the standard radio until around 1985. It was around that time that "CleanCab" radios were being introduced

P42s - Spectra

Charger - Railcom

P32ACDM - GE/Quest

ACS-64 - Ritron

AEM-7 Spectra

GP40TC, GP15 - Aerotron

Metroliner, Surfliner, California Cab Car - Spectra

Acela, Old and New gen - Spectra

Most SD70ACe - JEM 6.25

BNSF ES44C4 -  Ritron

BNSF ES44AC - GE/Quest