electronic converter
radiotransmission
Nyquist frequency
baseband
cycloconverter
transmitter
upconversion
inverter
low-noise block downconverter
microphone
discriminator
wireless telephone
radiotelephone
radiotelephony
tripler
carrier
digitizer
digitiser
filter
radio
analog-digital converter
analog-to-digital converter
tone dialing
radiotelecommunication
signalling
converter
downconversion
digital-to-analog converter
digital-analog converter
squawker
ringdown
psophometer
repeater
out-of-band signaling
spacer
input signal
input
stopband
modulation
attenuator
videophone
block upconverter
numbers station
waveband
radiotransmitter
pulse modulator
peanut whistle
spread spectrum communication
acoustic modem
scanner