World Radiocommunication Seminar – Geneva 2010

GE84PLNExercises

Fodé Traoré and Jean-Marc Paquet

Radiocommunication Bureau

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Broadcasting workshop exercises, WRS10 GE84PLN NO PROGRAM Task 1 GE84PLN First select fragment GE84. In

Russia (RUS), select one proposed modification (Notice under treatment) at SOCHI KRAS, 106.1 MHz. Make a frequency search at that site between 88.0-91.0 MHz.

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The max nuisance field gives an indication of the Eu at site. The complete analysis also involves calculating caused interference.

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2 GE84PLN Create a new notice to add an assignment using the frequency with the lower usable field strength and run an interference study.

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Caused Interference

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Usually you don’t have to worry about interference cause to stations of your own Administration.

According to 4.3.7.1 you should verify if any stations of other Administrations have an Eu increase of 0.5 dB or more.

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Sum for total distance site to site.

According to Chapter 2 , No 2.1.1-T (terre / Land)-Z2 (mer froide / Cold Sea)-Z3 (mer chaude / Warm Sea)-Z4 (S-refractivité / S-refractivity

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ERP at pertinent Azimuth

Protection ration from tables 2.1 to 2.3 ↑(depends on F. spacing and T. system)

NFS = Fs received + PR

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n/c : Eu is not calculated (n/c) for the case Nuisance FS is 10dB (user selectable) below Eu Ref

Eu Ref : Eu calculated at the time the assignment entered the Plan

Diff > 0.5 dB; if this was a station from another Administration, they could object according to 4.3.7.1

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Received Interference

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Info on interferers.

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Dist.,ERP PR & NFSSame definition as before

Calculation of the usable field strength ↑using the simple multiplication method asdescribed in Chapter 4.