@dipayan,
Everybody know that these satellite are still non-operational.
Gsat-8 at 55 degree east isro done some testing on it but no channel avalible...
Gsat-10 at 83 degree east for tata sky not operational yet..
Gsat-12 c-band at 83 degree east in place of insat 2e not operation too..
Re: RE: After GSLV launch, PSLV C24 with IRNSS-1B likely in March
prashant shridhar said:
@dipayan,
Everybody know that these satellite are still non-operational.
Gsat-8 at 55 degree east isro done some testing on it but no channel avalible...
Gsat-10 at 83 degree east for tata sky not operational yet..
Gsat-12 c-band at 83 degree east in place of insat 2e not operation too..
No bro u are completely unaware about real fact. Did u know that DGCA has cleared Gagan navigation last week for commercial operational after testing. Those satellite was carrying gagan payload. So if u think that those satellite were destroyed during launched or fall into indian ocean then GAGAN would not be there. Do u think that broadcasting satellites are launched only for dth companies to up link channels from there center it's not that simple. I am sure u are aware that what we watch on TV doesn't come from TS or D2h or any other DTH operator content comes from broadcaster end. Broadcaster has to uplink those channels to satellites. So transponders are needed for broadcaster also. DTH company has to downlink those channels from many satellite and then compress, encrypt and finally uplink to their satellite. Lots of news van plying around city for news carrying a dish on top of their vehicle so the live news needs to be uplinked to some satellite. The TV signal we get doesnot come from only 1 satellite. whenever we use ATM to withdral money we use satellite tp. So TP are very important. I think Till now India has 211 Tp in Space out of which TS use only 12. Rest are used for varies purpose. These are just few example. No country would like to waste the precious tp space.
12 Ku-band transponders each with 36 Mhz usable bandwidth employing 140 W Travelling Wave Tube Amplifier (TWTA) with footprint covering Indian mainland with an Edge of Coverage Effective Isotropic Radiated Power (EIRP) of 51.5 dBW and Andaman & Nicobar islands with an EIRP of 49.5 dBW
12 C-band transponders each with 36 MHz usable bandwidth employing 32 W TWTA with footprint covering Indian mainland and West Asia with an Edge of Coverage EIRO of 40 dBW
6 Lower Extended C-band transponders each with 36 MHz usable bandwidth employing 32 W TWTA with footprint covering Indian mainland and island territories with an Edge of Coverage EIRP of 38 dBW and 37 dBW respectively
NAVIGATION PAYLOAD
Two-channel GAGAN payload operating in L1 and L5 bands provides Satellite-based Navigation services with accuracy and integrity required for civil aviation applications over Indian Air Space.