# 13.1 Library overview

SEAMCAT library is a useful tool for creating and storing various elements that are part of a wireless system so that they can be re used at a later point of time. The SEAMCAT library contains the following elements:

- Systems and System Plugins (SP)
- Spectrum Emission Masks (SEM)
- Receiver Blocking Masks (RBM)
- Receivers
- Transmitters
- CDMA Link Level Data
- Antenna Gain Plugins (AGP)
- Coverage Radius Plugins (CRP)
- Propagation Model Plugins (PMP)
- Event Processing Plugins (EPP)

Note that technical library management functions are available regardless of whether a simulation workspace has been loaded or not. The library can be saved in a separate file too so that you can also share them.

[![image.png](https://wiki.cept.org/uploads/images/gallery/2026-06/scaled-1680-/ju1AsuOpUzAdGY2U-image.png)](https://wiki.cept.org/uploads/images/gallery/2026-06/ju1AsuOpUzAdGY2U-image.png)

<div class="fabric-editor-block-mark fabric-editor-alignment align-center" data-align="center" id="bkmrk-figure-274%3A-overview">**Figure 274: Overview of the SEAMCAT library elements**</div>