Gateway's bandwidth capacity up by 84%

quovadis said:
didnt realise bandwidth was in mhz...
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speak under correction, but because it's satellite based, the more spectrum allocated to you the more Mbps you can push through, therefore increasing bandwidth.
 
Still don't get it; "302 MHz" is a specific frequency, indicating a number of waveform peaks per second (i.e. indicating a particular spot along the spectrum, not the amount or range of spectrum allocated). This surely doesn't imply that they had "the range of spectrum from 0 to 302MHz" (0 wouldn't make sense), or do they mean they had "a range of spectrum from X MHz to X+302MHz"? And that still doesn't make sense to me anyway because surely the transmitters/receivers on a satellite don't operate over such long continuous ranges of frequency? I don't know, this is out of my field and it's been over a decade since I studied this stuff so maybe I don't know what I'm talking about. But I'm fairly sure you can't say "we have 555 megahertzes of bandwidth", nor do I think a "MHz" unit can be used in that way to indicate a *range* of frequencies even if it is a range of frequencies you are talking about. (Also I suspect that even a range of frequencies wouldn't provide a proportional indication of how much bandwidth you would have available because I don't think it's really possible to get similar amounts of throughput from different portions of the radio spectrum, at least that's what I recall, but here I speak under correction.)

Edit OK seems this may be how satellite bandwidth is spoken of, odd as it sounds to a network person:

http://www.foundation-partnership.org/pubs/bandwidth/index.php?chap=chap4
In establishing a multi-site VSAT facility, either a fraction of or a whole transponder is normally leased from the satellite operator, which usually provides either 36Mhz or 54Mhz of radio spectrum. As a rule of thumb for conversion to data bandwidth, 1Hz is equivalent to 1Kbps. That is, a 36 Mhz transponder should provide about 36 Mbps of bandwidth (new coding schemes are being tested which could provide up to 3 Kbps per 1Hz; however, these are proprietary and largely untested systems as yet)
Click to expand...

They have 15 satellite transponders so probably they mean they have 15 36MHz transponders. This still cannot by itself tell you anything about how much network bandwidth they have (unless one just assumes the "rule of thumb" above). Hmm ... of course, the word "bandwidth" (network context) originally comes from "bandwidth" (radio context) ... however it still doesn't seem quite right because 15x 36 MHz bandwidth is not "555 MHz bandwidth" in the radio sense? Surely even if they all operate on non-overlapping frequency ranges? Ag, I don't know, an expert should step in here ...
 
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