Wifi and Sata

[Skyfire]

1. If wifi uses radio waves, what does satellite technology use?

2. On a standard computer with a SATA controller, am I correct in assuming that you can only connect 2 drives total instead of 4 like IDE?

 

[growse]

1. Microwaves
2. Eh? Depends on how many ports the SATA controller has. If you have a 24 port controller, you can connect 24 drives.

 

[M0KUJ1N]

1. If wifi uses radio waves, what does satellite technology use?

Depends on the satellite and the technology in use

Microwaves are often used for transmissions between dishes, weather satellites generally use passive visible, UV, Near-IR and Far-IR sensors. GPS appears to use radio frequencies too, although a different waveband to your wifi, which is 2.4GHz whilst GPS uses a range of frequencies between 1GHz and 2GHz.

2. On a standard computer with a SATA controller, am I correct in assuming that you can only connect 2 drives total instead of 4 like IDE?

Depends on the controller. Most controllers on new motherboards have 4 SATA ports, and some boards have multiple controllers!

 

[Skyfire]

Depends on the satellite and the technology in use

Microwaves are often used for transmissions between dishes, weather satellites generally use passive visible, UV, Near-IR and Far-IR sensors. GPS appears to use radio frequencies too, although a different waveband to your wifi, which is 2.4GHz whilst GPS uses a range of frequencies between 1GHz and 2GHz.


Depends on the controller. Most controllers on new motherboards have 4 SATA ports, and some boards have multiple controllers!

Ta lads, very useful