4-2-3. Contact Procedures
a. Initial Contact.
1. The terms
initial contact or
initial callup means the first radio call you make to a given facility or the first call to a different controller or FSS specialist within a facility. Use the following format:
(a) Name of the facility being called;
(b) Your
full aircraft identification as filed in the flight plan or as discussed in paragraph
4-2-4, Aircraft Call Signs;
(c) When operating on an airport surface, state your position.
(d) The type of message to follow or your request if it is short; and
(e) The word "Over" if required.
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3. If radio reception is reasonably assured, inclusion of your request, your position or altitude, and the phrase "(ATIS) Information Charlie received" in the initial contact helps decrease radio frequency congestion. Use discretion; do not overload the controller with information unneeded or superfluous. If you do not get a response from the ground station, recheck your radios or use another transmitter, but keep the next contact short.
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and about how to change frequency:
When instructed by ATC to change frequencies, select the new frequency as soon as possible unless instructed to make the change at a specific time, fix, or altitude. A delay in making the change could result in an untimely receipt of important information. If you are instructed to make the frequency change at a specific time, fix, or altitude, monitor the frequency you are on until reaching the specified time, fix, or altitudes unless instructed otherwise by ATC.
