AM transmitter
FM transmitter
Klaxon
Mayday
RT transmitter
Roman candle
SOS
Texas tower
Very flare
aid to navigation
air-raid alarm
airport beacon
airway beacon
alarm
alarm bell
alarm clock
alarm signal
alarum
alert
all clear
amateur transmitter
amber light
anchor light
approach light
backfire
balefire
beacon fire
beacons
beam
bell
bell buoy
belvedere
blaze
bleachers
blinker
blinker light
blinking light
blue peter
bonfire
bridge
buoy
burglar alarm
burning ghat
buzzer
campfire
caution light
ceiling light
cheerful fire
combustion
conflagration
radio beacon
conduct
direct
guide
lead
radio station
shine
take
beaconed
beaconing
antenna
comm
communicator
flare
glimmer
grid
illumination
lantern
marker
pulse
radar
radiance
radio-
relay
satellite
scanner
sensor
signal
spark
torch
transmitter
transponder
Mohican
Pekin
deacon
pekin
weaken