Assertion: tower's antenna | /r/ObjectUse | used for broadcasting
Facets:
value: through the 1920s
type: TEMPORAL
Source sentences:
text: The antenna used for broadcasting through the 1920s was the T-antenna, which consisted of two masts with a wire topload strung between them, requiring twice the construction costs and land area of a single mast.
text: The antenna on the peak will be used for broadcasting.