Satellite TV Networks purchase various programs from TV networks, independent companies, and radio stations, then make this programming available to the public. On the other hand, there are the so-called LEO (Low Earth Orbit) satellites, smaller in size, which are located 2,000 km from the Earth and revolve quickly around it. Their price is lower compared to geostationaries and they provide service for a maximum of 5 years.
The DISH network also offers 50 Sirius Satellite Radio music channels and Starband broadband Internet service and has recently been rated as the number one in customer satisfaction by JD Power & Associates amongst all satellite service providers in the US.
Pada masa modern, istilah penginderaan jauh mengacu kepada teknik yang melibatkan instrumen di pesawat atau pesawat luar angkasa dan dibedakan dengan penginderaan lainnya seperti penginderaan medis atau fotogrametri Walaupun semua hal yang berhubungan dengan astronomi sebenarnya adalah penerapan dari penginderaan jauh (faktanya merupakan penginderaan jauh yang intensif), istilah “penginderaan jauh” umumnya lebih kepada yang berhubungan dengan teresterial dan pengamatan cuaca.
GEO satellites, or geostationary satellites, are located 36,000 km from the Earth, exactly on the equator line and, as their name indicates, they rotate in tune with the geostationary orbit, in such a way that it seems like they remain static from the surface of the Earth.
Even in the day and age of satellite TV and radio, cell phones small than credit cards, and truckloads of information traveling through the Internet each day, you should not discount the effectiveness of mailing a postcard or advertisement through “Snail Mail.” Compared to the targeted advertising of pay-per-click and search engine optimization, mailings may seem like a waste of money and time.