Frequently Asked Questions
Here in Phoenix the major networks are sharing a single ATSC 3.0 physical channel. We expect to see a similar approach in other markets where broadcasters share one or two physical channels broadcasting ATSC 3.0 content.
ATSC 3.0 demods are expensive - ATSC 3.0 new, and it requires supporting four concurrent demodulations per channel making the hardware a lot more expensive.
Two tuners supporting ATSC 3.0 provides a good cost balance and is unlikely to be a limitation for many years.Last updated:
Apple TV is expected to play most video content, however Apple TV will not support ATSC 3.0 interactive content.
We reached out to Apple on this subject but they would not grant an exception to their policy of not allowing HTML/JS content on the Apple TV platform. HTML/JS support is required for ATSC 3.0 interactive content to work.
Playing content on Apple TV currently requires a third party app such as Channels.Last updated:
The Ethernet port is 100baseTX (100Mbps).
The HDHomeRun QUATRO 4K supports streaming 4 virtual channels at once.... 4 channels won't max out a 100Mbps link.Last updated:
ATSC 3.0 channels use HEVC (h.265) video encoding.
ATSC 1.0 channels use MPEG2 video encoding.
The HDHomeRun QUATRO 4K passes the video through so you get HEVC if you select an ATSC 3.0 channel and you get MPEG2 if you select an ATSC 1.0 channel.Last updated:
ATSC 3.0 does not have any impact on the TV antenna.
ATSC 3.0 is a modulated digital signal in the same TV bands as ATSC 1.0 and as NTSC was back in the day (UHF, VHF-H, VHF-L). The antenna requirements are the same.Last updated:
The DEV model has all the same features and works the same way as the normal model. It has additional features for people who want to develop or tinker with ATSC 3.0.Last updated:
4K recordings won't be much bigger than today's 1080i recordings.
1080i MPEG2 (ATSC 1.0) runs around 15-16Mbps making a 1 hour recording around 7GB.
4K HEVC (ATSC 3.0) runs around 15-20Mbps making a 1 hour recording around 8GB.Last updated:
We received a number of requests to ship to Canada. ATSC 3.0 isn’t currently planned for Canada so to use new ATSC 3.0 features you need to be in range of a USA-based broadcast tower.
We have enabled Canada as a shipping option.Last updated:
ATSC 3.0 has a number of modulation types and code rates as part of the standard - hundreds of possible configurations.
There are possible configurations which work at a much lower signal quality than ATSC 1.0 and configurations which require higher signal quality. A broadcaster can choose to go for a high bitrate requiring better signal quality, or can opt for a lower bitrate to maximize the coverage.
We expect broadcasters will likely start broadcasting opting for modulation parameters than provide similar coverage to ATSC 1.0 while granting the benefits of ATSC 3.0.
ATSC 3.0 also supports multiple PLPs (physical layer pipes). Using PLPs a broadcaster can have one channel carrying multiple modulation configurations. For example a robust low bitrate modulation carrying SD content, a typical bitrate modulation carrying normal content fixed antenna coverage, and a high bitrate modulation carrying 4K content requiring a high quality roof antenna.Last updated:
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