Title :
A method of signalling between a vehicle and an automatic telephone exchange
Author :
Stewart, J.R. ; Willyard, C.
fDate :
4/1/1958 12:00:00 AM
Abstract :
In order to transmit standard automatic telephone ringing and dialing signals over a radio system where the signal may drop out for periods of over 100 milliseconds, a system using long tone pulses has been built.
Keywords :
Books; Frequency; Pulse circuits; Reflection; Relays; Telephone sets; Telephony; Testing; Unmanned aerial vehicles; Voltage;
Journal_Title :
IRE Transactions on Vehicular Communications
