# Introduction

3 elements form the path between the <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">VLR</span></span></span> and the <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">VLT</span></span></span> or the <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">ILR</span></span></span> and <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">ILT</span></span></span> as illustrated in Figure 148.

[![image.png](https://wiki.cept.org/uploads/images/gallery/2026-04/scaled-1680-/ZUDypHSuzlwwO6Iz-image.png)](https://wiki.cept.org/uploads/images/gallery/2026-04/ZUDypHSuzlwwO6Iz-image.png)

**Figure 148: Transmitter to Receiver Path illustration**

![image.png](https://wiki.cept.org/uploads/images/gallery/2026-04/scaled-1680-/YTAuBTBWjEv8ybzH-image.png)

**Figure 149: Transmitter to Receiver Path GUI**