IEEE International Symposium on Electromagnetic Compatibility, 18–20 August 1981, Boulder, CO, pp. 1–4

Proposed Techniques for Adding FM Broadcast Stations in a Major Market

doi: 10.1109/ISEMC.1981.7569902

Eldon J. Haakinson

Abstract:

An investigation of the FM Broadcast Spectrum's utilization shows that more assignments are possible if some or all of the following recommendations are adopted:

  1. protections to existing facilities rather than to maximum facilities is granted
  2. the effect of terrain are considered,
  3. directional attenas as used,
  4. reasonable changes to the signal-to-interference protection ratios for cochannel and adjacent channel operation are adopted, and
  5. co-siting of second- and third-adjacent channel transmitters with existing transmitters is permitted.

By way of demonstration of the techniques in a saturated market, the number of FM broadcast stations in Dallas–Ft. Worth could be increased from the present 21 stations to 38 stations.

Keywords: interference; frequency modulation; directional antennas; FM broadcast; FCC; FM Broadcasting Band; receivers; transmitters

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