# 8.3.4 Transmitter settings

This content of this panel depends whether <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">CDMA</span></span></span> system is a victim or an interfering system. If the <span data-highlighted="true" data-vc="highlighted-text">CDMA</span> is an interferer, you will have to set the spectrum emission mask and the emissions floor. It is a shared interface with <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">OFDMA</span></span></span>.

[![image.png](https://wiki.cept.org/uploads/images/gallery/2026-04/scaled-1680-/HgwUNPb5KsLn8REr-image.png)](https://wiki.cept.org/uploads/images/gallery/2026-04/HgwUNPb5KsLn8REr-image.png)**Figure 190: Cellular panel transmitter settings**

When defining the Emission Mask (not as BEM) the units of the user defined mask are: Offset (MHz); Mask Values (dBc); Reference Bandwidth (kHz).

When defining the Emission mask as a Block Edge Mask (BEM), SEAMCAT sets to 0 dBi the peak gain of the transmitter antenna and uses the power entries of the Mask as e.i.r.p (already including the gain of the antenna). So, if the Emission mask is defiend as BEM, the units of the user defined mask are: Offset (MHz); Mask Values (dBm e.i.r.p.); Reference Bandwidth (kHz).