# 8.2 CDMA system tab
# Introduction
Whether you want to simulate CDMA UL (uplink) or CDMA DL (downlink), you can import from the system library (Figure 186 – (a)), the cellular system you want (Figure 186 – (b)). You can also export the characteristics of your CDMA network to the library for later reuse.
[](https://wiki.cept.org/uploads/images/gallery/2026-04/QJwvSYaCTyelPOys-image.png)
**Figure 186: Selection of a CDMA cellular network from the system library**
# 8.2.1 System
You can name and write some description of the CDMA system you want to simulate. It is the same layout as when a generic system is selected.
# 8.2.2 General
You can enter the frequency. The frequency value is overwritten at the “Scenario” tab level.
**Table 26: General system panel**
| **Description**
| **Symbol**
| **Type**
| **Unit**
| **Comments**
|
| **Frequency**
| f
| Distribution or Scalar
| MHz
| Distribution of the centre frequency of the system
|