Television digest with electronics reports (Jan-Dec 1954)

with the provisions of Subpart A or B can be operated pursuant to a license issued by the Commission. Such licenses would be granted by the Commission only if it found that the device in question could not meet the requirements of the rules, but that its operation would serve the public interest, convenience and necessity. 10. The Commission also wishes to point out that while various radiation limits are now being proposed, the Commission may find it necessary in the future to impose stricter radiation limits in light of new developments in the electronics field, and the necessity for providing adequate protection from harmful interference to authorized radio services. 11. These proposed rules are issued pursuant to the provisions of Sections 4(i), 301 and 303 (r) of the Communications Act of 1934, as amended. 12. Any interested person may file with the Commis sion on or before June 16, 1954 a statement or brief setting forth his comments in regard to the proposed amendments of the Commission’s rules. Comments in reply to the original comments may be filed within 20 days from the last day for filing original comments. No additional comments may be filed unless (1) specifically requested by the Commission or (2) good causes for the filing of additional comments is established. The Commission will consider all comments before taking action in the matter, and if any comments are submitted which appear to warrant the holding of a hearing or oral argument, notice of the time and place of such hearing or oral argument will be given. 13. In accordance with the provisions of Section 1.764 of the Commission’s rules, an original and 14 copies of all statements, brief or comments filed shall be furnished to the Commission. APPENDIX Pari 15 — Rules and Regulations Governing Restricted and Incidental Radiation Devices Subpart A — General 15.1. Statement of basis and purpose. — (a) Section 301 of the Communications Act of 1934, as amended, provides for the control by the Federal Government over all the channels of interstate and foreign radio communication and further provides, in part, that no person shall use or operate apparatus for the transmission of energy, communications, or signals by radio when the effects of such operation extend beyond state lines or cause interference with the transmission or reception of energy, communications, or signals, of any interstate or foreign character by radio, except under and in accordance with the Communications Act and a license granted under the provisions of that act. Restricted and incidental radiation devices emit radio frequency energy on frequencies ■within the radio spectrum and constitute a serious source of interference to authorized radio communication services operating upon the channels of interstate and foreign communication unless precautions are taken which will prevent the creation of any substantial amount of such interference. (b) The following rules and regulations are designed to have a two-fold effect: (1) They set forth the conditions under which the operation of equipment of the type covered by this part of the rules 'will not be considered to fall within the category of situations covered by the provisions of Section 301 of the Communications Act, for which a station license is required as a condition of lawful operation. (2) They provide a procedure for the licensing of de'vices covered by this part of the rules which are unable to meet the conditions set forth for operation without a license. 15.2 Definitions. — For the purpose of this part the following definitions shall be applicable: (a) Incidental Radiation Devices: Devices which radiate radio frequency energy but which are not specifically designed to generate radio frequency energy. (b) Restricted Radiation Devices: Devices which radiate radio frequency energy and are specifically designed to generate radio frequency energy (whether or not they are intended to be used for communications purposes) and which are not specifically covered in any other part of the Commission’s Rules and Regulations. (c) Carrier Current Systems: Restricted radiation devices comprising systems for the transmission of intelligence, including control signals, principally by means of conducted radio frequency currents. (d) Harmful Interference: Any radiation or any induction which endangers the functioning of a radio navigation service or of a safety service or obstructs or repeatedly interrupts a radio sei’vice operating in accordance "with the table of frequency allocations contained in Part 2 of the Commission’s Rules whether or not such interference occurs within the normally recognized field intensity contours of the authorized station. 15.3 Operation of Incidental Radiation Devices: Until further order, all devices of this nature shall be governed solely by the requirements specified in Section 15.6 of this Part. 15.4 Operation of Restricted Radiation Devices: The operation of all Restricted Radiation Devices manufactured or installed after the effective date of these rules shall be in accordance with the limitation ^ set forth in sub-sections (a) and (b) below except insofar as Subparts B and C contain specific provisions for the operation of certain types of restricted radiation devices, in which event the operation of such devices shall be governed by those provisions of Subparts B and C. (a) The device shall not deliver more than the following amounts of power to an artificial load having electrical characteristics that provide maximum transfer of energj' from the device to the load: ’ Prior to July 1, 1956, these limits shall not be applicable to radio receivers other than television and frequency modulation broadcast receivers and land mobile receivers above 25 me. Frequency Power db above 1 watt (dbw) Approximate Micromicrowatts / 1600 \ / 1600 \> 10 kc — 1600 kc 20 logic (^) ” \^c) X 20.000 1.6 — 27.5 me 77 20,000 or (b) The device shall not create an electromagnetic field in excess of the values shown in the following table:* 2