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hughes has developed ACM on return link ??

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yazzdan
Ex Member


Jul 19th, 2011 at 6:43am  
hughes Hub System has developed ACM on return link ?? can any one tell me is this correct ??
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Eric Johnston
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Reply #1 - Jul 19th, 2011 at 8:53am  
ACM refers to the dynamic modification to the DVB-S2 outlink carrier to suit the link towards each VSAT remote.

The return links have dynamic FEC coding. The hub receiver (at a particular TDMA frequency and symbol rate) can deal with bursts of several different FEC rates, without knowing in advance what to expect.

Overview: http://www.hughes.com/ProductsAndTechnology/BroadbandSatelliteSystems/TheHughesT...

HN system: http://www.hughes.com/HNS%20Library%20For%20Products%20%20Technology/HN-System_H...

HX system: http://www.hughes.com/HNS%20Library%20For%20Products%20%20Technology/HX%20System...

Bentley Walker have at least 5 HX hubs and Avanti-Hylas have a HN hub.  I suggest you call them if you want a customer's perspective on the possible purchase of a HN or HX hub, otherwise discuss with Hughes direct to clarify the exact technical features.

Best regards, Eric.
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yazzdan
Ex Member


Reply #2 - Jul 19th, 2011 at 1:24pm  
Thanks Eric Smiley
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