# Introduction

When the cognitive radio mode is activated, SEAMCAT resturns the output vector shown in Figure 251 and described in Table 52.

<div class="rich-media-item mediaSingleView-content-wrap image-align-start css-k1c8w1" data-layout="align-start" data-media-vc-wrapper="true" data-node-type="mediaSingle" data-renderer-start-pos="129" data-vc="media-single" data-width="652" data-width-type="pixel" id="bkmrk-"><div class="css-1qwoi5b"><div data-alt="" data-collection="contentId-512127" data-context-id="512127" data-file-mime-type="" data-file-name="file" data-file-size="1" data-height="145" data-id="86e87945-3d36-4a87-8d2a-92120e1591cf" data-node-type="media" data-renderer-start-pos="130" data-type="file" data-width="652"><div class="_2rko18qm _vchhusvi _kqswh2mm _ect4ttxp _p12f1osq _c71l1osq _1bsb1qmm _4t3ine4n _1hlmd0i9 _1rquusvi _eg541i5c _mts3kb7n _1ntskb7n _yfmhtlke _5sb1v00u new-file-experience-wrapper" data-media-vc-wrapper="true" data-testid="media-card-view"><div class="_1reo15vq _18m915vq _2rko18qm _1e0c1txw _kqswh2mm _p12f1osq _1bsb1osq _4t3i1osq _c71l1osq media-file-card-view" data-cursor="pointer" data-test-media-name="1.png" data-test-progress="1" data-test-source="remote" data-test-status="complete" data-testid="media-file-card-view"><div class="_kqswstnw _1bsb1osq _4t3i1osq _1e0c1txw _2lx21bp4 _1bah1h6o _4cvr1h6o" data-testid="ImageRendererWrapper">![](blob:https://ecowiki.atlassian.net/ccbb7a3a-7a9a-44cb-9228-616513b35cdd#media-blob-url=true&id=86e87945-3d36-4a87-8d2a-92120e1591cf&collection=contentId-512127&contextId=512127&width=652&height=145&alt=&clientId=113268fe-fe5b-4bc3-8ff3-07965dbf1d18)</div></div></div></div></div></div>[![image.png](https://wiki.cept.org/uploads/images/gallery/2026-04/scaled-1680-/h1JpLNISjv9cF2w6-image.png)](https://wiki.cept.org/uploads/images/gallery/2026-04/h1JpLNISjv9cF2w6-image.png)

<div class="fabric-editor-block-mark fabric-editor-alignment align-center" data-align="center" id="bkmrk-figure-251%3A-output-v">**Figure 251: Output vector for the <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">CR</span></span></span>**</div><div class="fabric-editor-block-mark fabric-editor-alignment align-center" data-align="center" id="bkmrk-table-52%3A-output-res">**Table 52: Output results for <span data-highlighted="true" data-vc="highlighted-text">CR</span> simulation**</div><div class="pm-table-container with-shadow-observer" data-layout="align-start" data-testid="table-container" id="bkmrk-%23-item-description-1"><div class="pm-table-wrapper" data-autosize="false" data-layout="align-start" data-number-column="false" data-table-local-id="" data-vc="table-node-wrapper"><div class="sentinel-left"></div><table data-layout="align-start" data-number-column="false" data-table-width="760" data-testid="renderer-table"><colgroup></colgroup><tbody><tr><td colspan="1" rowspan="1">**\#**

</td><td colspan="1" rowspan="1">**Item**

</td><td colspan="1" rowspan="1">**Description**

</td></tr><tr><td colspan="1" rowspan="1">1

</td><td colspan="1" rowspan="1">sRSS

</td><td colspan="1" rowspan="1">sRSS value calculated at the selected <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">WSD</span></span></span> frequency (i.e. where the <span data-highlighted="true" data-vc="highlighted-text">WSD</span> is allowed to transmit) for each of the event

</td></tr><tr><td colspan="1" rowspan="1">2

</td><td colspan="1" rowspan="1"><span data-highlighted="true" data-vc="highlighted-text">WSD</span> frequency

</td><td colspan="1" rowspan="1">The actual selected frequency at which the WSDs are allowed to transmit as the result of the spectrum sensing algorithm

</td></tr><tr><td colspan="1" rowspan="1">3

</td><td colspan="1" rowspan="1"><span data-highlighted="true" data-vc="highlighted-text">WSD</span> e.i.r.p.

</td><td colspan="1" rowspan="1">The actual selected e.i.r.p. at which the WSDs are allowed to transmit as the result of the spectrum sensing algorithm

</td></tr><tr><td colspan="1" rowspan="1">4

</td><td colspan="1" rowspan="1">Victim frequency

</td><td colspan="1" rowspan="1">frequency at which the victim device transmits per event

</td></tr><tr><td colspan="1" rowspan="1">5

</td><td colspan="1" rowspan="1">Average e.i.r.p. per event x active WSDs (for each frequency)

</td><td colspan="1" rowspan="1">average e.i.r.p. per event for all the active WSDs transmitting at a certain frequency

</td></tr><tr><td colspan="1" rowspan="1">6

</td><td colspan="1" rowspan="1">Average Active <span data-highlighted="true" data-vc="highlighted-text">WSD</span> per event (for each frequency)

</td><td colspan="1" rowspan="1"></td></tr></tbody></table>

<div class="sentinel-right">  
</div></div><div class="pm-table-sticky-scrollbar-container-view-page" data-vc="table-sticky-scrollbar-container"></div></div>At the end of the simulation, SEAMCAT provides a set of output vectors as above. Then you can perform the interference probability calculation as previously described.