Which of the following digital modes is designed for meteor scatter communications?
Which of the following is a good technique for making meteor scatter contacts?
Which of the following digital modes is especially useful for EME communications?
What technology is used to track, in real time, balloons carrying amateur radio transmitters?
What is one advantage of the JT65 mode?
Which of the following describes a method of establishing EME contacts?
What digital protocol is used by APRS?
What type of packet frame is used to transmit APRS beacon data?
What type of modulation is used for JT65 contacts?
How can an APRS station be used to help support a public service communications activity?
Which of the following data are used by the APRS network to communicate station location?