COM

The introduction of 8.33 kHz can have a major impact on the ATC system. There is the possibility of non-equipped aircraft entering 8.33 kHz, with the increased possibility of frequency blocking, and the additional workload placed on controllers both around … Continued

The concept of call sign confusion and particularly the use of alphanumeric call signs are investigated by IFATCA. IFATCA Policy is: To reduce the possibility of call sign confusion: Call signs that correspond to the last two designators of both … Continued