Q: Is a transmitter an electronic device which? ¶
A: Yes, and with the aid of an antenna, produces radio waves.
Q: Is a transmitter often abbreviated "XMTR" or "TX" in technical documents? ¶
Q: Were transmitters electrically "noisy"? ¶
A: Yes, their energy was spread over a broad band of frequencies, creating radio noise which interfered with other transmitters.
Q: Is a transmitter given a unique call sign consisting of a string of letters and numbers which must be used as an identifier in transmissions? ¶
Q: Are transmitters necessary component parts of many electronic devices that communicate by radio? ¶
A: Yes, and such as cell phones, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and navigational beacons.
Q: Is a transmitter usually limited to equipment that generates radio waves for communication purposes? ¶
A: Yes, or radiolocation, such as radar and navigational transmitters.
Q: Are transmitters strictly controlled by law because of the potential for dangerous interference with other radio transmissions? ¶
A: Yes, Transmitters must be licensed by governments, under a variety of license classes depending on use such as broadcast, marine radio, Airband, Amateur and are restricted to certain frequencies and power levels.
Q: Were transmitters used during the first three decades of radio? ¶
A: Yes, and called the wireless telegraphy or "spark" era.
Q: Are transmitters radio communication of information over a distance? ¶
Q: Is a transmitter an electronic circuit which transforms electric power from a battery or electrical mains into a radio frequency alternating current? ¶
A: Yes, and which reverses direction millions to billions of times per second.