. Bell telephone magazine . rby other systems of communication. In the police type of two-way radiosystem, there are really two broad-casting systems, working in oppositedirections, and separate and completefrom microphone to loud-speaker. The next step in the interconnec- tion of two-wire telephone lines witha radio link is represented by thecoastal harbor systems, where the shipend of the connection still has separatemicrophone-plus-radio-transmitter andradio-receiver-plus-loudspeaker cir-cuits. However, the coastal stationrequires terminal equipment to con-nect between the radio circuit, wh
. Bell telephone magazine . rby other systems of communication. In the police type of two-way radiosystem, there are really two broad-casting systems, working in oppositedirections, and separate and completefrom microphone to loud-speaker. The next step in the interconnec- tion of two-wire telephone lines witha radio link is represented by thecoastal harbor systems, where the shipend of the connection still has separatemicrophone-plus-radio-transmitter andradio-receiver-plus-loudspeaker cir-cuits. However, the coastal stationrequires terminal equipment to con-nect between the radio circuit, whichat any instant may be either transmit- Improvised Radio Telephone Stations Right: Installing emergency radio telephoneequipment at Tavernir, Fla., which bridgedthe gap to Key \\ est and Cuba after a hurri-cane while permanent repairs to the line werecompleted. Below: On the banks of theColumbia River. Complete transmitting andreceiving apparatus is installed in both tents,establishing two working circuitsacross the river.
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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1922
