VSAT

VSAT stands for "Very Small Aperture Terminal;" it refers to receive/transmit terminals, installed at dispersed sites and connecting to a central hub via satellite using small diameter antenna dishes (0.6 to 3.8 meter).

I find this very tough compared to WiMAX, WiFi and LAN. Especially when it comes to aligning it to the corresponding satellite.
I have done the KU-Band and C-band. mostly KU-band

KU-Band

Oh that is just me working on the Ku-band.

Downlink: 11.7 – 12.2 GHz

Uplink: 14.0 – 14.5 GHz

Advantages:  

• No interference from microwave links and other technologies
• Operates with a smaller satellite dish (diameters from 0.9m) -> cheaper and more easy installation
• Needs less power -> cheaper RF unit

Disadvantages:

• More expensive capacity
• Sensitive to heavy rain fade (significant attenuation of the signal) / possibly can be managed by appropriate dish size or transmitter power.

C-Band

Me again working on the alignment of C-Band.

Downlink: 3.7 – 4.2 GHz

Uplink: 5.9 – 6.4 GHz

Advantages:

• Less disturbance from heavy rain fade
• Cheaper Bandwith

Disadvantages:

• Needs a larger satellite dish (diameters of minimum 2-3m)
• Powerful (=expensive) RF unit
• More expensive hardware
• Possible Interference from microwave links

 trying to see what is inside that hub









Can you spot a girl there?

When I discovered what Photoshop could do

I realized that i could cut my throat..in picture ofcoarse

I could smile next to Oprah & the Queen on Forbes magazine

I made Johnny Superman

I made a muslim guy(Hamad Madee) worship Christ

I went to meditate inThai

"When I grow up, I want to be....."

As a kid, i wanted to be a lot of things till one day came this man, T.T. Mzava, to my school. He talked about a lot of wonderful things in the world called IT. I remember him saying that it would come a time when everything would be computerize. without the knowledge of computer, you would be nothing.....That is where it all started. that i where i started my journey to the wonderful world of IT.