What radio 10 code is used when you don’t understand what the dispatcher has said and you need them to repeat their transmission?10-9.10-99.10-78.10-4.

Using radio telephony approved phraseology, what does the following term mean?HOW DO YOU READAre you using the phonetic alphabet ?What is the readability of my transmission?Come again, Repeat your transmissionIgnore previous transmission

What kind of operators are of particular use in heavy communications efforts like the military?Morse codeRadioCell phone

One application of signals in the 300 MHz – 3 GHz range is ina.air traffic controlb.maritime radioc.police radiod.Cellular telephony

When data is encoded on an electromagnetic carrier such as the radio band using more than one channel, the transceiver is only half-duplex communication.a.Depends on the modulation used.b.Truec.Depends on the protocol used.d.False

modulation techniques for mobile radio