INTERACT FORUM
Windows => Television => Topic started by: lippe007 on June 03, 2009, 01:27:58 pm
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I tried to understand the differences between Cable and Terrestrial tuning and I discovered the Media Center 2005 doesn't support DVB-C from itself. Digital Everywhere (the maker of FireDTV) however developed special drivers for MCE that make the tuner look like a terrestrial one, while the drivers translate terrestrial frequencies into DVB-C tuples using a table stored in the registry.
These drivers also seem to work for MC13, and I managed to have all cable channels scanned in my region.
So far I did not succeed in getting the TV video shown in the window, I guess this is codec problem (still to be solved).
What I did:
1) install drivers form digital anywhere: in MCE mode
2) add translation table to registry (might be installed automatically when installing drivers,
I extracted the registry entry to show the content and key):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\DigitalEverywhere\FireDTV\Transponder\Cable]
"473833"="168000, 6875"
"474000"="170000, 6875"
"474167"="234000, 6875"
"481833"="235000, 6875"
"482000"="236500, 6875"
"482167"="247000, 6875"
"489833"="252000, 6875"
"490000"="255000, 6875"
"490167"="260000, 6875"
"497833"="263000, 6875"
"498000"="268000, 6875"
"498167"="271000, 6875"
"505833"="276000, 6875"
"506000"="279000, 6875"
"506167"="284000, 6875"
"513833"="287000, 6875"
"514000"="292000, 6875"
"514167"="297000, 6875"
"521833"="305000, 6875"
"522000"="308000, 6875"
"522167"="313000, 6875"
"529833"="316000, 6875"
"530000"="321000, 6875"
"530167"="324000, 6875"
"537833"="329000, 6875"
"538000"="332000, 6875"
"538167"="337000, 6875"
"545833"="340000, 6875"
"546000"="345000, 6875"
"546167"="348000, 6875"
"553833"="353000, 6875"
"554000"="354000, 6875"
"554167"="356000, 6875"
"561833"="361000, 6875"
"562000"="362000, 6875"
"562167"="364000, 6875"
"569833"="369000, 6875"
"570000"="370000, 6875"
"570167"="372000, 6875"
"577833"="377000, 6875"
"578000"="380000, 6875"
"578167"="385000, 6875"
"585833"="388000, 6875"
"586000"="393000, 6875"
"586167"="396000, 6875"
"593833"="401000, 6875"
"594000"="404000, 6875"
"594167"="409000, 6875"
"601833"="412000, 6875"
"602000"="412500, 6875"
"602167"="417000, 6875"
"609833"="420000, 6875"
"610000"="425000, 6875"
"610167"="426000, 6875"
"617833"="428000, 6875"
"618000"="433500, 6875"
"618167"="434000, 6875"
"625833"="436000, 6875"
"626000"="442000, 6875"
"626167"="444000, 6875"
"633833"="450000, 6875"
"634000"="452000, 6875"
"634167"="456000, 6875"
"641833"="458000, 6875"
"642000"="460000, 6875"
"642167"="466000, 6875"
"649833"="482000, 6875"
"650000"="498000, 6875"
"650167"="506000, 6875"
"657833"="514000, 6875"
"658000"="538000, 6875"
"658167"="551500, 6875"
"665833"="562000, 6875"
"666000"="562750, 6875"
"666167"="578000, 6875"
"673833"="610000, 6875"
"674000"="618000, 6875"
"674167"="629750, 6875"
"681833"="634000, 6875"
"682000"="650000, 6875"
"682167"="658000, 6875"
"689833"="658750, 6875"
"690000"="662000, 6875"
"690167"="666000, 6875"
"697833"="674000, 6875"
"698000"="682000, 6875"
"698167"="682750, 6875"
"705833"="690000, 6875"
"706000"="691500, 6875"
"706167"="698000, 6875"
"713833"="706000, 6875"
"714000"="714000, 6875"
"714167"="730000, 6875"
"721833"="754000, 6875"
"722000"="762000, 6875"
"722167"="786000, 6875"
"729833"="794000, 6875"
"730000"="802000, 6875"
"730167"="810000, 6875"
"737833"="811750, 6875"
"738000"="818000, 6875"
"738167"="831500, 6875"
"745833"="862000, 6875"
"746000"="224000, 6900"
"746167"="404000, 6900"
"753833"="506000, 6900"
"754000"="538000, 6900"
"754167"="554000, 6900"
"761833"="570000, 6900"
"762000"="618000, 6900"
"762167"="626000, 6900"
"769833"="634000, 6900"
"770000"="642000, 6900"
"770167"="650000, 6900"
"777833"="658000, 6900"
"778000"="666000, 6900"
"778167"="674000, 6900"
"785833"="682000, 6900"
"786000"="690000, 6900"
"786167"="698000, 6900"
"793833"="706000, 6900"
"794000"="730000, 6900"
"794167"="738000, 6900"
"801833"="746000, 6900"
"802000"="754000, 6900"
"802167"="770000, 6900"
"809833"="778000, 6900"
"810000"="786000, 6900"
"810167"="834000, 6900"
"817833"="842000, 6900"
"818000"="232000, 6875"
"818167"="240000, 6875"
"825833"="290000, 6875"
"826000"="298000, 6875"
"826167"=" "
"833833"=" "
"834000"=" "
"834167"=" "
"841833"=" "
"842000"=" "
"842167"=" "
"849833"=" "
"850000"=" "
"850167"=" "
"857833"=" "
"858000"=" "
"858167"=" "
"865833"=" "
"866000"=" "
"866167"=" "
3) I have inserted my region in the DVB frequencies.xml file in JRiver/Mediacenter/TV and made sure that all frequencies correspond to the first row of the translation table above:
<Country Name="Netherlands" CountryCode="31" NetworkType="DVB-T" Bandwidth="8">
<Channel Freq="473833"/>
<Channel Freq="474000"/>
<Channel Freq="474167"/>
<Channel Freq="481833"/>
<Channel Freq="482000"/>
<Channel Freq="482167"/>
<Channel Freq="489833"/>
<Channel Freq="490000"/>
<Channel Freq="490167"/>
<Channel Freq="497833"/>
<Channel Freq="498000"/>
<Channel Freq="498167"/>
<Channel Freq="505833"/>
<Channel Freq="506000"/>
<Channel Freq="506167"/>
<Channel Freq="513833"/>
<Channel Freq="514000"/>
<Channel Freq="514167"/>
<Channel Freq="521833"/>
<Channel Freq="522000"/>
<Channel Freq="522167"/>
<Channel Freq="529833"/>
<Channel Freq="530000"/>
<Channel Freq="530167"/>
<Channel Freq="537833"/>
<Channel Freq="538000"/>
<Channel Freq="538167"/>
<Channel Freq="545833"/>
<Channel Freq="546000"/>
<Channel Freq="546167"/>
<Channel Freq="553833"/>
<Channel Freq="554000"/>
<Channel Freq="554167"/>
<Channel Freq="561833"/>
<Channel Freq="562000"/>
<Channel Freq="562167"/>
<Channel Freq="569833"/>
<Channel Freq="570000"/>
<Channel Freq="570167"/>
<Channel Freq="577833"/>
<Channel Freq="578000"/>
<Channel Freq="578167"/>
<Channel Freq="585833"/>
<Channel Freq="586000"/>
<Channel Freq="586167"/>
<Channel Freq="593833"/>
<Channel Freq="594000"/>
<Channel Freq="594167"/>
<Channel Freq="601833"/>
<Channel Freq="602000"/>
<Channel Freq="602167"/>
<Channel Freq="609833"/>
<Channel Freq="610000"/>
<Channel Freq="610167"/>
<Channel Freq="617833"/>
<Channel Freq="618000"/>
<Channel Freq="618167"/>
<Channel Freq="625833"/>
<Channel Freq="626000"/>
<Channel Freq="626167"/>
<Channel Freq="633833"/>
<Channel Freq="634000"/>
<Channel Freq="634167"/>
<Channel Freq="641833"/>
<Channel Freq="642000"/>
<Channel Freq="642167"/>
<Channel Freq="649833"/>
<Channel Freq="650000"/>
<Channel Freq="650167"/>
<Channel Freq="657833"/>
<Channel Freq="658000"/>
<Channel Freq="658167"/>
<Channel Freq="665833"/>
<Channel Freq="666000"/>
<Channel Freq="666167"/>
<Channel Freq="673833"/>
<Channel Freq="674000"/>
<Channel Freq="674167"/>
<Channel Freq="681833"/>
<Channel Freq="682000"/>
<Channel Freq="682167"/>
<Channel Freq="689833"/>
<Channel Freq="690000"/>
<Channel Freq="690167"/>
<Channel Freq="697833"/>
<Channel Freq="698000"/>
<Channel Freq="698167"/>
<Channel Freq="705833"/>
<Channel Freq="706000"/>
<Channel Freq="706167"/>
<Channel Freq="713833"/>
<Channel Freq="714000"/>
<Channel Freq="714167"/>
<Channel Freq="721833"/>
<Channel Freq="722000"/>
<Channel Freq="722167"/>
<Channel Freq="729833"/>
<Channel Freq="730000"/>
<Channel Freq="730167"/>
<Channel Freq="737833"/>
<Channel Freq="738000"/>
<Channel Freq="738167"/>
<Channel Freq="745833"/>
<Channel Freq="746000"/>
<Channel Freq="746167"/>
<Channel Freq="753833"/>
<Channel Freq="754000"/>
<Channel Freq="754167"/>
<Channel Freq="761833"/>
<Channel Freq="762000"/>
<Channel Freq="762167"/>
<Channel Freq="769833"/>
<Channel Freq="770000"/>
<Channel Freq="770167"/>
<Channel Freq="777833"/>
<Channel Freq="778000"/>
<Channel Freq="778167"/>
<Channel Freq="785833"/>
<Channel Freq="786000"/>
<Channel Freq="786167"/>
<Channel Freq="793833"/>
<Channel Freq="794000"/>
<Channel Freq="794167"/>
<Channel Freq="801833"/>
<Channel Freq="802000"/>
<Channel Freq="802167"/>
<Channel Freq="809833"/>
<Channel Freq="810000"/>
<Channel Freq="810167"/>
<Channel Freq="817833"/>
<Channel Freq="818000"/>
<Channel Freq="818167"/>
<Channel Freq="825833"/>
<Channel Freq="826000"/>
</Country>
4) I scanned the TV channels for DVB in MC 13 and found all channels
I hope this helps for the DVB cablers around!
Frank
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Thanks for posting this.
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Conclusion: :(
Only non-encrypted channels will produce a stream, encrypted won't as the interface protocol is not covering encryption.
I've tried many ways and found some workarounds, but it is not usable in the end.
We definitely need an upgrade of the JMRC if we want to use DVB-C. :'(
Frank