Parabolic Dish Antenna

Hi,

I live in Brazil and I would like to know if it is possible to watch Japanese TV programs (from Fuji TV, for instance) by installing a parabolic antenna dish? Is it possible for an antenna located in South America to receive signals from Japanese satellites? How do I know if the signal is coded or not?

Thanks.
How do I know if a determined satellite is "visible" in (in the footprint of) South America?

If you are out of the footprint of the satellite it would not be possible to watch Japanese programming .
You can check for your location by looking for the elevation and azimuth for the satellite at lyngsat.com .
The satellites that you are interested in may also be scrambled .

2008-05-01 13:57:46 by insightfulpace

Would a quadrupole antenna work well with a parabolic dish ?

What configuration will the Quad be in? Will it be a cubical? A beam (4 elements)? Or Loops (4 loop antenna). All would have to be in phase inorder to work. Need more info.

You can go to the library to see if they have the "ARRL Antenna Handbook". If they dont you would have to purchase one from the ARRL (American Radio Relay League) at www.arrl.org
Just do a search and follow the links.

2006-10-11 21:26:25 by Technotron

can i achieve the same gain of a parabolic dish antenna using phased antenna arrays ?

thanks

You will eventually achieve the gain of a dish by phased antenna arrays, but it's a very costly and complex way of doing it!
The high gain of a parabolic dish makes it the simplest form of directional antenna for most purposes.

2008-10-20 13:06:32 by tamer

5.8GHz ISM applications
Wireless Bridges
5.8GHz UNII applications
Point to Point, Point to Multi-point System
5.8GHz Wireless LAN systems

hi
i want to make ad hoc/peer to peer network between two computers which are approximately 0.85 mile (1.36765 KM) away from each other. For this purpose i need additional antenna to boost or extend my range/coverage. so my question is that which kind of antenna should i use, a parabolic antenna or a satellite/TV dish??

please dont tell me to reject this plan as i asked and studied about this, and it is possible!!!!!!

if you think it is impossible then visit the link below:

http://en.wikipedia.org/wiki/Long-range_ Wi-Fi#Notable_links

A satellite dish IS a parabolic antenna. However it may not be ideal for a wireless network due to its design. You can buy purpose built dishes and waveguides for 802.11b, g, and n networks.

For distances of about 3 miles or less, a yagi would be adequate and less expensive than a parabolic dish. A parabolic dish at either end can extend line-of-site communications out to 20 miles easily using standard 802.11 wireless equipment. Aiming is critical with a dish and the farther the distance the more important that it becomes. Yagi are more forgiving -- alignment by eye is usually sufficient.

2009-08-13 06:22:39 by ali h

If the radiating element of the antenna is at the focal point and directing energy toward the reflector, then yes, the waves reflect off the dish and travel basically in a focused beam-like form away from the dish.

.

2008-02-05 12:20:03 by Timmer