[mythtv-users] HDHomeRun

jafa hdtv at silicondust.com
Tue Aug 1 15:46:52 UTC 2006

>>>> http://www.silicondust.com/main/index.php?act=viewProd&productId=5
>> MythTV (svn trunk, soon to be 0.20) has a new capture device for direct
>> HDHomeRun support. There are no kernel drivers or dependencies to have
>> to get right.
> This sounds too good to be true! And for $169, the price I paid for
> HD3000. And we have person working on it on this list, now how
> wonderfull is that?
> The picture seems rendered and info on the site seems a bit scarce.
> Any other "real" puctures of the back of the unit showing connectors
> and such?

Real pictures will be this week when the production plastics arrive.

Ports on the back - Power, Ethernet, Antenna 1, Antenna 2.
> Also (sorry for bombarding you with questions) I'm assuming the
> control of the unit (channel changing and such) is done through
> network since there is a mention of IR receiver "to singal you PC"?
Control is via the network. You can control it from multiple computers 
at the same time if desired (the two tuners can be controlled 

The IR receiver works with LIRC using the built in udp mode of LIRC.
> 1Gb ethernet would have been nicer in this day and age, I'm wondering
> why go with 100Mb.
The max possible rate for ATSC is 20Mbps. Dual tuners = 40Mbps.

If you want to build the ultimate MythTV box and run say four HDHomeRun 
units (8 tuners = 160Mbps), then you will need a gigabit switch... each 
of the HDHomeRun units privodes 40Mbps and the switch will push it out 
to the PC using gigabit speeds.

BTW - It has hardware PID filtering supported by MythTV so actual 
throughput when using MythTV will be the bitrate of the program you are 
watching/recording rather than the full 20Mbps unfiltered ATSC rate.


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