<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr">On Thu, May 3, 2018, 6:27 AM Stephen Worthington <<a href="mailto:stephen_agent@jsw.gen.nz">stephen_agent@jsw.gen.nz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Wed, 2 May 2018 23:56:42 -0500, you wrote:<br>
<br>
>On Wed, May 2, 2018 at 10:32 PM, Marco Nelissen <<a href="mailto:marco.nelissen@gmail.com" target="_blank" rel="noreferrer">marco.nelissen@gmail.com</a>><br>
>wrote:<br>
><br>
>> The HDHomeRun Quatro has 4 ATSC tuners, but only a 100Mbit network port.<br>
>> In theory that should be enough, but is it, in practice? Anyone ever run<br>
>> into any network bandwidth issues with the Quatro? Would I be better off<br>
>> getting two dual-tuner models, to spread the load? (the tuner(s) would be<br>
>> connected to a gigabit switch, and the rest of my network is all gigabit)<br>
>><br>
>><br>
>> ?Don't see why it would be an issue.. 21Mb/s is max on ATSC 1080i..<br>
>That's 84 total.<br>
><br>
>-Greg?<br>
<br>
If multrec is supported with HDHRs, then 100 Mbit/s will not be<br>
adequate. Worst case with multirec you can be downloading all the<br>
channels from each multiplex, all at the same time. I am not sure<br>
what the full bandwidth of an ATSC multiplex is, but more than two of<br>
them at once will certainly be more than 100 Mbit/s. I can see why<br>
the original HDHRs were 100 Mbit/s, but I find it incredibly stupid<br>
for them to still be making new ones that are only 100 Mbit/s. And<br>
quite insane when they have four tuners.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">Stephen, </div><div dir="auto"><br></div><div dir="auto">Your multirec math is off. As Greg pointed out, each frequency is about 21Mb/s for a total of 84. If a frequency is a cake, each channel on that cake is a slice of that 21.</div><div dir="auto"><br></div><div dir="auto">For example, two stations in Buffalo (each with a single SD subchannel) have just started sharing a frequency due to the UHF repack. Because the same cake is now divided into two HD and two SD slices, recordings on the HD channels are now half the size they used to be. </div><div dir="auto"><br></div><div dir="auto">And now I want cake. </div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
</blockquote></div></div></div>