Orbi - why can't we change channels on satellites?

For lamens terms, there repeaters or extenders. 

Thanks. 

Being more techinal:

Wireless repeaters and mesh networks are both technologies that can be used to extend network coverage over a given area. Wireless repeaters work by taking an existing wireless signal and re-broadcasting it, while mesh networks see every device on a network directly connected to every other device without the use of a central router or switch. Wireless repeaters are usually best suited to extending the range of a small wireless network, while mesh networks are often used for high-performance business networking.

Operation
A wireless repeater is a device designed to receive wireless signals and then re-transmit them. The main difference between wireless repeaters and regular wireless routers is that repeaters can only re-transmit signals they have already received, rather than generating wireless signals of their own. Mesh networking, on the other hand, is a form of network design rather than a specific technology. In a mesh network, data travels from device to device in short hops until it reaches its destination, rather than being directed by a central device. Both wired and wireless networks can use a mesh topology.

Reliability
The principle advantage of mesh networks is their resilience. Mesh networks do not have a single point of failure, meaning that there is no chance of an individual device failure bringing the whole network down. This contrasts with regular hub-type networks, where a failure in a central router or switch could cut large parts of the network off from each other. Repeaters, on the other hand, do not increase a network's resilience. If the router or access point broadcasting the original wireless signal goes down, all repeaters on the network will be affected.

Scalability
Repeaters can help to scale a wireless network, increasing the network's range while ensuring that devices on the edge of the network still get a reasonable service. You can simply add more repeaters as the network grows, although a signal that has been repeated multiple times will not be as strong as the original signal. Mesh networks, however, do not scale well, as every new device must be connected to every other device, a process that can consume a lot of time and money.

Complexity
Mesh networks are almost always more complex than their hub counterparts, requiring specialized equipment and trained administrators to keep the network running. This complexity has a bearing on the overall cost of the network, making mesh networks expensive to set up and maintain. Wireless repeaters, on the other hand, allow you to keep your network design reasonably simple even as the network's coverage areas grows, as the signal always originates from the same wireless router.