Our company uses satellite access for inbound Internet traffic. This allows us to save money and download faster. We use «planetsky» satellite provider. Few months we not used any accelerator and come to wrong conclusion that satellite access is cheaper but cannot provide adequate speed for us. In the our working hours we get average throughput about 256kbps and less. At night hours throughput was near to ordered 1mbps.

When we managed to install and configure tellitec accelerator (free for planetsky), speed increases significantly. Now during entire day we can borrow ordered 1mbs and more.

So, as the general conclusion if you use satellite access you have to use accelerator. Accelerator is a piece of software which provide http proxy and(or) SOCKS proxy interfaces. Accelerator rely on great fault tolerance of satellite (DVB) traffic, which allows to remove extra TCP service packets (confirmations). This allows to send several TCP packets as one large packet. Accelerator also compresses this large packet, that increases effectiveness.