4 sets (HUB version or without HUB version) in maximum at the same range in 350 meters.
The installations:
a. The distance between two hubs is at least 1.5 meters when multiple Solidcom C1 hub-based systems are cascaded.
![image 127](https://cdn.hollyland.com/wp-content/uploads/2023/08/30164027/image-127.png)
b. You are advised to install the hub at a place higher than 1.7 meters in an open space. A confined environment may affect the wireless signal quality and reduce the transmission range.
The firmware requirements: Solidcom C1 HUB-based system versions later 1.0.4.2 , Solidcom C1 no-HUB system versions later 1.0.4.5.
Firmware upgrade manual: https://drive.google.com/file/d/1qNu9N_hwmJEgH2Q-LgGM5Ua-SCuT4qX3/view?usp=sharing