SWM channels: why ~100 MHz wide?!?

tkrandall said:

I see that the 8 channels on a SWM setup are separated by 102 MHz. I don't know how wide the actual channels are, but I would presume they are or could be ~100 MHz wide.

Which begs the question as to why so wide? That is much more than any transponder, even the ones on Ka, would seem to require.

Is there some sort of room for growth (content) built into these SWM channels?

Also, I noticed "unused" spectrum between 1800Mhz and 2300 Mhz (the control channel). More room for growth or for wupporting additional receivers using that range?

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veryoldschool said:

The control "Channel" is 2.3 MHz.
"I would guess" the reason for the 100 MHz bandwidth, is because of the technique used to convert the SAT feed to a SWM channel, where the receiver is doing the final tuning to the transponder/channel [out of simply a smaller "block" than without the SWM].

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