NovelSat Offers
DTH Satellite Providers a New Solution for More Channels Without
additional DVB‑S Bandwidth
April 7, 2015 –
NovelSat, will demonstrate satellite
modulation technology that enables 5% Roll-off Factor with DVB-S
waveforms. This new twist on an old technology can be a big
advantage to DTH (Direct to Home) satellite service providers
who can achieve up to 28% higher spectral efficiency with their
existing satellite bandwidth and Customer Premises Equipment
(CPE).
When a satellite signal is filtered, or masked, the ‘edges’ of the signal drop off and are not used for transmission. This drop off is known as Roll-off Factor (ROF). A lower ROF means that more of the signal can be used for transmission.
The DVB-S standard, still common in DTH set
top boxes in customer premises, specifies ROF at 35%. By
dropping the ROF down to 5%, NovelSat can give DTH providers the
capacity to deliver more content channels or increase their HD
content offering without increasing their satellite bandwidth
budget. This can be an important customer retention advantage
that does not increase the provider’s operating expenses.
An increase in delivery capacity would
normally require replacing or upgrading the tens or hundreds of
thousands of Set Top Boxes that the provider operates. With the
NovelSat DVB-S 5% ROF solution, using the NovelSat NS1000
Satellite Modulator, most existing CPEs running DVB-S can still
be used to receive the expanded content package. This presents
the potential for substantial savings on the cost of new
equipment, support and marketing affiliated with end user
upgrades.
In addition to the new DVB-S solution,
NovelSat offers 5% ROF and other spectral efficiency features
for a wide range of waveforms including DVB-S2, NovelSat NS3 and
the recently demonstrated NovelSat NS4 waveform
(available Q3 2015) which currently tests at up to 25% more
efficient than DVB-S2X.
“The massive undertaking and cost of
replacing CPEs can discourage DTH providers from upgrading
satellite capacity that they could use to offer their customers
expanded HD content,” said Dan Peleg, NovelSat VP R&D. “The
combination of a low cost 28% capacity bump and no interruption
to the customer experience makes the NovelSat DVB-S 5% ROF
solution very attractive to DTH satellite service providers.”