Question

Which satellite is launched by India for Direct to Home (DTH)?
(A) INSAT-4A
(B) IRS-1
(C) METSAT
(D) CARTOSAT

Answer 1

Hint: One of the digital satellite services if DTH or Direct to Home Service which provides the subscribers of the television viewing services through direct transmission anywhere in the country. DTH is an encrypted transmission which will directly travel to the consumers or subscribers through the satellite

Complete step by step solution:
The Indian National Satellite system or the INSAT system is one of the largest communication systems for domestic purposes in the region of Asia – Pacific which is a place in the Geostationary orbit along with the nine operational communication satellites.
The INSAT system or the Indian National Satellite System is a series or a set of multipurpose geostationary satellites launched by the Indian Space Research Organization or ISRO to be used or to satisfy the telecommunications, broadcasting, and search and rescue operations. The INSAT was commissioned in the year of 1983, to the Indo – Pacific region. The INSAT – 4a was the first of the INSAT-4 satellite series, which provides the services of frequency bands and C frequency bands. The band transponders cover the Indian mainland and the C band transponders cover the extended area of India.
The INSAT-4A satellite was carried and put in orbit with the help of the Ariane launch vehicle (ARIANE5-V169). The INSAT-4A one of the first of the INSAT-4 series was a communication satellite that was intended for providing High-quality television, telecommunication, and broadcasting. Where the other three satellites that are given the options perform remote sensing such as agriculture, water resources, observation, defense, and collecting data from unattended meteorological sites.

$\therefore$ INSAT-4A is the satellite launched by India for Direct to Home (DTH). Hence Option (A) is correct.

Note: There are many different types of DTH satellites such as INSAT-2E, INSAT-3B, INSAT-4I, INSAT-4 series, INSAT-3DR, etc. The IRS satellite stands for Indian Remote Sensing satellite. The METSAT stands for Meteorological Satellite. CARTOSAT is a series of Indian optical Earth Observation Satellites which is controlled by ISRO.