G2B06 What is a practical way to avoid harmful interference when selecting a frequency to call CQ on CW or phone?
A. Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
B. Listen for 2 minutes before calling CQ
C. Send the letter "V" in Morse code several times and listen for a response
D. Send “QSY” on CW or if using phone, announce “the frequency is in use”, then send your call and listen for a response
- After listening for a short period of time, if you do not hear another station transmitting on the frequency, it is good practice to make a short transmission asking if the frequency is in use. It may be that due to propagation you are unable to hear the transmitting station, but the listening station can hear you. On CQ, the Q-signal "QRL?", and on phone, "Is the frequency in use?" followed by your call sign give the opportunity for another station to respond.