“ f. See Appendix 2 for call signs, code words and identifiers authorized for use by all elements of Task Group 7.4. eg. Seo Appendix 4 for HF and VHF Aircraft Channelization,. h. See Appendix 5 for Voice Time Seript. HOWELL M. ESTES, JR. Brigadier General,. U.S.A.F. Commander 5 Appendices 1. Communications Circuits 2. Coll Signs and Code Words 3. Communications Security 4. Air-Ground Communications 5. Voice Time Script OFFICIAL 3 2, Ay 7 beds UGicfler Lt Colonel, USAF Director of Operations TASK GROUP 7.4 OPRS ORDER NO. 1-54 ANNEX E ES ar