signal tower
Elevated transmission structure
A signal tower is a tall structure built to transmit visual communications over distance.
Historically, these towers used fires, flags, or mechanical arms to relay messages between stations—each tower visible to the next in a chain.
Modern signal towers typically carry radio, cellular, or microwave equipment: The signal tower on the ridge improved cell coverage throughout the valley.
- semaphoreFlag-based signaling system
- watchtowerElevated structure for surveillance
- antennaBroadcast signal receiver
- smoke signalsFlame-based distant messaging
- lighthouseCoastal beacon tower
transmitter · heliograph · telegraph pole · broadcast · 5G · frequency modulation · ham radio · radio waves · lookout · base station · electromagnetic waves · hilltop · high ground · beacon · outpost · aerial · wireless · transmission
- trainstrains, train, locomotive, locomotives, steam locomotive
- Old Westcowboy, cowboys, cowgirl, sheriff, sheriffs
- railroadstrains, train, tracks, track, locomotive
- towerswatchtower, monopole, Space Needle, Big Ben, Babel
- train stationplatform, tracks, ticket office, rails, waiting room
- telegraphytelegraph, Morse code, telegraphy, telegraph key, telegraph line
signal towerreceiver
One who accepts transmission
satellite dish · radio receiver · listening post · detector · sensor array