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Technical question about buffering

G

GaryOmaha

While on a road trip, we were discussing/arguing just how Sirius buffers their music so you don't have dropouts going under ever single overpass. I understand the concept of the data buffered in the radio -- what I don't get is, when you actually go under the overpass, isn't the live stream into your antenna interrupted -- even very briefly? So, how does the radio recover that data?

This sort of ties in with my question elsewhere of whether there's a web site that outlines Sirius bandwidth. I'm interested in technical aspects, which they seem not to discuss much on their main web site.
 
I heard somewhere that one of the satellites broadcasts on a five-second delay. So when you go under a bridge for two seconds in an area without repeaters, the radio picks up the "missing piece" of programming from the time-staggered satellite.
 
> I heard somewhere that one of the satellites broadcasts on a
> five-second delay. So when you go under a bridge for two
> seconds in an area without repeaters, the radio picks up the
> "missing piece" of programming from the time-staggered
> satellite.
>
I think it's 4 seconds. The 2 satellites are 4 seconds apart.
 
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