Extra Class
The highest level of amateur radio license with full operating privileges on all amateur bands. Most technical exam. 50 questions, 37 needed to pass.
601 questions
Why is it not legal to transmit a 3 kHz bandwidth USB signal with a carrier frequency of 14.348 MHz?
When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the lowest frequency at which a properly adjusted LSB emission will be totally within the band?
What is the highest legal carrier frequency on the 20-meter band for transmitting a 2.8 kHz wide USB data signal?
May an Extra class operator answer the CQ of a station on 3.601 MHz LSB phone?
Who must be in physical control of the station apparatus of an amateur station aboard any vessel or craft that is documented or registered in the United States?
What is the required transmit frequency of a CW signal for channelized 60 meter operation?
What is the maximum power permitted on the 2200-meter band?
If a station in a message forwarding system inadvertently forwards a message that is in violation of FCC rules, who is primarily accountable for the rules violation?
Except in some parts of Alaska, what is the maximum power permitted on the 630-meter band?
If an amateur station is installed aboard a ship or aircraft, what condition must be met before the station is operated?