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Originally Posted by edmond1
First of all TVG uses fiber for their source feeds - they can afford it. Also if fiber feeds are so expensive and prone to problems as you claim and as experienced recently WHY CHANGE FROM C-BAND WHICH WAS MORE RELIABLE AND RESULTED IN LESS REAL-TIME DELAY. I have already argued this point several times on here.
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C-band is older technology. I would imagine your have observed the gradual disappearance of C-band satellite antennas.
The reasons are many. One, C-band satellites were low powered birds which had to be that way because the C-band frequency spectrum is very close to microwave voice communications. This was to avoid the effect of 'crosstalk'. Or interference into another frequency range. Low power sats require very large movable ( across the sky) antennas with a lost of expensive moving parts.
Enter digital or Direct Satellite Service and FSS Fixed Satellite Service.
These types require much smaller antennas because the power output is much higher.
Eventually all of the existing C-band birds out on the Clark Belt will expire. They are all being replaced with sats using the Ku Band.