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MediaPortal 1
MediaPortal 1 Talk
DVB-T2 HD Reception Success Story
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<blockquote data-quote="Ere Maijala" data-source="post: 1068759" data-attributes="member: 139962"><p>Hi All,</p><p></p><p>since there hasn't been so much talk about DVB-T2 especially using a cheap USB stick receiver, I decided to try it out and write about my experiences. My starting point was a working single-seat MediaPortal installation with three cheap RealTek RTL2832 based DVB-T dongles. Windows identifies these as DK DVBT DONGLE, VID_1D19, PID_1101. They use RTL2832UBDA.sys and RTL2832UUSB.sys drivers. These sticks have been rock-solid, which is something I can't say about a couple of others I've tried (Elgato EyeTV Hybrid and TerraTec Cinergy T Stick Dual RC. I couldn't get the EyeTV hybrid to have good reception at all with Windows even though it worked fine on a MacBook Pro. The Terratec was fine otherwise, but it disappeared from the system at worst once a day requiring it to be unplugged before it would work again (I did miss quite a few recordings because of that).</p><p></p><p>Anyway, after looking around I decided to order a generic DVB-T2 receiver that seems to be sold by a number of sellers (e.g. <a href="http://www.ebay.co.uk/itm/281166739271" target="_blank">http://www.ebay.co.uk/itm/281166739271</a>). There was no information whether it would work with Windows 8.1 and Finnish DVB-T2 broadcasts, but I found a <a href="http://mysku.ru/blog/others/20164.html" target="_blank">Russian forum </a>discussion and a link to <a href="http://www.astrometa.com.tw/integrated_en.html" target="_blank">updated drivers</a>. There was even a mention that the manufacturer had worked with the Russian folks to resolve some issues with</p><p></p><p>About three weeks later I got the package, installed the latest drivers (nice to see a budget card with up-to-date drivers) and went on to search for the HD channels. First stumbling block was that the information of the new mux wasn't in MediaPortal's database. I found that the mid frequency was 586 MHz, but entering 586000 in TV Service's advanced options turned up nothing. I decided to try and search for all known Finnish frequencies, and it found the channels at 586125 KHz or something close to that. I couldn't get good reception, though. There were a couple of discontinuities per second, and the image and sound were stuttering. I added an antenna amplifier where the cable comes in, and it improved the signal level and quality. It's still not completely free of discontinuities, but it doesn't affect the perceived quality of reception anymore. This just shows that HD reception over DVB-T2 is a lot pickier with the signal quality than SD reception via DVB-T.</p><p></p><p>One more tweak I had to do is up the time TV Service waits for the channel to tune. I had it at 2 seconds, but sometimes it seems to take a bit more than that, which caused "No signal" errors. So far fast channel zapping's not there, but that's not a problem for me.</p><p></p><p>I'm running both MediaPortal TV Service and Client on an old Laptop with AMD Turion RM-70 (2 GHz) and Mobility Radeon HD 3400. I was a bit skeptical if it would handle HD channels well (it can't handle HD with Flash or SilverLight players well), but the LAV decoders seem to do a great job and utilize DXVA+ which makes it work really smoothly with less than 50% CPU utilization for most of the time. I haven't tried any image enhancements available in the LAV codec.</p><p></p><p>--Ere</p></blockquote><p></p>
[QUOTE="Ere Maijala, post: 1068759, member: 139962"] Hi All, since there hasn't been so much talk about DVB-T2 especially using a cheap USB stick receiver, I decided to try it out and write about my experiences. My starting point was a working single-seat MediaPortal installation with three cheap RealTek RTL2832 based DVB-T dongles. Windows identifies these as DK DVBT DONGLE, VID_1D19, PID_1101. They use RTL2832UBDA.sys and RTL2832UUSB.sys drivers. These sticks have been rock-solid, which is something I can't say about a couple of others I've tried (Elgato EyeTV Hybrid and TerraTec Cinergy T Stick Dual RC. I couldn't get the EyeTV hybrid to have good reception at all with Windows even though it worked fine on a MacBook Pro. The Terratec was fine otherwise, but it disappeared from the system at worst once a day requiring it to be unplugged before it would work again (I did miss quite a few recordings because of that). Anyway, after looking around I decided to order a generic DVB-T2 receiver that seems to be sold by a number of sellers (e.g. [url]http://www.ebay.co.uk/itm/281166739271[/url]). There was no information whether it would work with Windows 8.1 and Finnish DVB-T2 broadcasts, but I found a [URL='http://mysku.ru/blog/others/20164.html']Russian forum [/URL]discussion and a link to [URL='http://www.astrometa.com.tw/integrated_en.html']updated drivers[/URL]. There was even a mention that the manufacturer had worked with the Russian folks to resolve some issues with About three weeks later I got the package, installed the latest drivers (nice to see a budget card with up-to-date drivers) and went on to search for the HD channels. First stumbling block was that the information of the new mux wasn't in MediaPortal's database. I found that the mid frequency was 586 MHz, but entering 586000 in TV Service's advanced options turned up nothing. I decided to try and search for all known Finnish frequencies, and it found the channels at 586125 KHz or something close to that. I couldn't get good reception, though. There were a couple of discontinuities per second, and the image and sound were stuttering. I added an antenna amplifier where the cable comes in, and it improved the signal level and quality. It's still not completely free of discontinuities, but it doesn't affect the perceived quality of reception anymore. This just shows that HD reception over DVB-T2 is a lot pickier with the signal quality than SD reception via DVB-T. One more tweak I had to do is up the time TV Service waits for the channel to tune. I had it at 2 seconds, but sometimes it seems to take a bit more than that, which caused "No signal" errors. So far fast channel zapping's not there, but that's not a problem for me. I'm running both MediaPortal TV Service and Client on an old Laptop with AMD Turion RM-70 (2 GHz) and Mobility Radeon HD 3400. I was a bit skeptical if it would handle HD channels well (it can't handle HD with Flash or SilverLight players well), but the LAV decoders seem to do a great job and utilize DXVA+ which makes it work really smoothly with less than 50% CPU utilization for most of the time. I haven't tried any image enhancements available in the LAV codec. --Ere [/QUOTE]
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