https://en.wikipedia.org/wiki/GEC-Plessey_Telecommunications
GEC Plessey Telecommunications - Wikipedia
gec plesseytelecommunicationswikipedia
https://www.telecompaper.com/news/gec-plessey-launches-uhf-transmitters--94309
GEC PLESSEY LAUNCHES UHF TRANSMITTERS - Telecompaper
GEC Plessey Semiconductors (Dedham, MA) has launched the KESTX01 and KESTX02 UHF transmitters, featuring amplitude-shift-keying (ASK) modulation for 50 mt data...
gec plesseylaunchesuhftransmitterstelecompaper