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COT Division, 1st Session-Final Report 55

APPENDIX A TO PART 1
DEVELOPMENT PROJECTS CONSIDERED, WITH SPONSORS AND FREQUENCY BANDS OCCUPIED
1.-FINAL APPROACH AND LANDING

[[3 columned table]]

| Project | Frequency | Sponsor |

|---|---|---|

| 1.1.-Teleran. | 1,000 Mc/s. or lower (not critical) for television. 3,000 Mc/s. for surveillance. 10,000 Mc/s. for GCA. | U.S. (R.C.A.) |

| 1.2.-Improved microwave system providing error free paths, linked to the automatic pilot and enabling selection of slide path to be controlled from within the aircraft. | 5,000 Mc/s. | U.S. (Sperry). U.K. (M. of S.) |

| 1.3.-Investigation into the psycho-physiological aspects of instrumentation. | Not applicable. | U.S. (U.S. AAF.) U.K. (M. of S.) |

| 1.4.-Investigation into the use of leader cable for aircraft guidance on the airfield and possibly on the landing path. | Audio frequencies. | U.K. (M. of S.) |

| 1.5.-Navar. | 1,000 Mc/s. 3,000 Mc/s. and 100 Mc/s. | U.S. (Federal). |

2.-SHORT-DISTANCE RADIO AIDS TO NAVIGATION AND AIDS TO AIR TRAFFIC CONTROL

[[3 columned table]]

| 2.1.-Sperry co-ordinated air traffic system. | 5,000 Mc/s. | U.S. (Sperry). |

| 2.2.-Teleran. | 1,000 Mc/s 3,000 Mc/s and 10,000 Mc/s. | U.S. (R.C.A.) |

| 2.3.-Navar. | 1,000 Mc/s 3,000 Mc/s and 100 Mc/s. | U.S. (Federal). |

| 2.4.-Lanac. | 1,000 Mc/s. | U.S. (Hazeltine Electronics Corporation). |

| 2.5.-G.R.S. Block System. | 1,000 Mc/s. | U.S. (General Railway Signal Co.) |

| 2.6.-Decca Navigation System. | Spot frequencies between 70 and 130 kc/s. | U.K. (Decca Navigator Co.) |

| 2.7.-Microwave airborne search radar (with provision for use with beacons). | 10,000 Mc/s. | U.S. (General Electric Co., Houston-Raytheon Corp., Sperry). U.K. (M. of S.)|

| 2.8.-Condar. | 100 Mc/s. | U.K. (S.T. & C.) |

| 2.9.-Pulse-phase azimuth | 420-450 Mc/s. | U.K. (M. of S.) |

3.-LONG-DISTANCE NAVIGATIONAL SYSTEMS

[[3 columned table]]

| 3.1.-VLF Decca. | Spot frequencies between 10-20 kc/s. | U.K. (Decca Navigator Co.) |

| 3.2.-Navaglobe. | 70-100 kc/s. | U.S. (Federal). |

| 3.3.-P.O.P.I. | 300 kc/s. | U.K. (M. of S.) |

| 3.4.-LF Omnirange. | 100-500 kc/s. | U.S. (C.A.A.)
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