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MediaPortal 1
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How do I specify a DiSEqC switch AND a 22 kHz tone switch with a DVB-S2 satellite card?
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<blockquote data-quote="mm1352000" data-source="post: 1085709" data-attributes="member: 82144"><p>Hello again <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p></p><p>Yes, TV Server stores each successfully scanned channel (along with the transponder details) in either a MySQL or SQL Server database. The type of database depends on what you chose during install (default is MySQL). The content of the database can be directly accessed and manipulated using standard tools for those database engines - for example MySQL Workbench, SQL Server Management Studio. You can also edit channel details in TV Server configuration through the TV and radio channels sections.</p><p></p><p></p><p>There is no independent 22 kHz tone setting. The tone will be turned on if the transponder frequency is above the LNB switch frequency; otherwise it will be turned off. In other words, the LNB settings (band type and/or LNB override frequencies) determine the 22 kHz tone setting. To successfully configure your switches we have to ensure that you get the correct LNB settings. That's why I asked for the satellite and LNB settings list.</p><p></p><p></p><p>Okay, well as above - there is no independent tone switch setting, which makes the LNB settings critical. I'll try to explain the settings I recommend with a bit of detail to try to help you understand. Without further ado...</p><p></p><p>5150 and 10750 MHz LNBs are supported as standard. If you didn't have to consider 22 kHz tone switches you could use the "C-band" band type for any 5150 MHz LNBs and the "Circular" band type for any 10750 MHz LNBs (note that circular is just a name and doesn't affect/prevent reception of linearly polarised - horizontal and vertical - transponders).</p><p></p><p>For example, to receive 107.3W...</p><p>The first thing you should always do before scanning is click "update satellite list". This downloads the latest transponder details from the internet and should ensure you find all the available channels.</p><p>To configure for scanning you'd tick any one of the satellite rows at the top, select Level1AB for DiSEqC port 2, select C-band as band type, and select 107.3W as satellite. If your tuner is DVB-S2 capable then you'd also tick "enable DVB-S2...".</p><p>Aside from that you don't need to mess with any of the other options if you don't want to. You might consider it useful to enable creating [channel] groups for each satellite so you can see at a glance which satellite each channel came from.</p><p>Otherwise you can just click "scan for channels"... and wait for the scan to complete.</p><p></p><p>Tone switches do throw a spanner into that nice simple configuration. As explained above, the tone is turned on or off depending on the LNB settings. There is no preset band type that will support the configuration that you want for port 3... so we need to use the LNB frequency overrides in the advanced options. A warning is in order: the overrides affect all tuners (you can't set different values for different tuners) and all channels (ie. if you enable, disable or change the LNB override settings those changes are applied to all previously scanned channels). That's why I don't usually recommend them. They're basically a last resort.</p><p></p><p>What values do you use for the LNB override frequencies?</p><p>Maybe it is easiest to just tell you and then explain why with a couple of examples.</p><p></p><p><strong>Recommendation:</strong></p><p></p><p>low LOF = 5150</p><p>high LOF = 10750</p><p>switch = 7000</p><p></p><p><strong>Assumptions:</strong></p><ol> <li data-xf-list-type="ol">All C band satellites need to be received with LNBs with 5150 MHz LOFs.</li> <li data-xf-list-type="ol">All Ku band satellites need to be received with LNBs with 10750 MHz LOFs.</li> <li data-xf-list-type="ol">All C band satellites will be received with tone off.</li> <li data-xf-list-type="ol">All Ku band satellites will be received with tone on.</li> </ol><p><strong></strong></p><p><strong>Implications:</strong></p><ol> <li data-xf-list-type="ol">You need to swap the connections on the tone switch for port 3 so that 99W (5150) is tone off and 125W (10750) is tone on. Hopefully that is doable. If it isn't we're going to need to get significantly more radical.</li> </ol><p></p><p><strong>Explanation:</strong></p><p></p><p>The most concise explanation I can give for why I recommended the settings above is:</p><ol> <li data-xf-list-type="ol">The tuner selects the low LOF when the transponder frequency is less than the switch frequency; otherwise it selects the high LOF.</li> <li data-xf-list-type="ol">The switch frequency is chosen to tell the tuner which LOF to use. It can be set anywhere between the highest transponder frequency received with LOF 1 and the lowest transponder frequency received with LOF 2.<br /> </li> <li data-xf-list-type="ol">C band frequencies are below Ku band frequencies by definition.</li> <li data-xf-list-type="ol">When you combine [1], [2], [3] and the fact that you're constrained to one set of LNB settings, it should [hopefully! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />] be clear that the C band LOF should be the low LOF and the Ku band LOF should be the high LOF. It wouldn't work any other way.</li> <li data-xf-list-type="ol">When the low LOF is selected the tuner turns the 22 kHz tone off; when the high LOF is selected the tuner turns the 22 kHz tone on. This is a standard convention due to the popularity of so-called universal LNBs in Europe and parts of Asia.<br /> </li> <li data-xf-list-type="ol">If no tone switch is present it doesn't matter if the tone is on or off - the signal will be received either way.</li> <li data-xf-list-type="ol">When you combine [5] and [6] it should hopefully be clear why I stated the assumptions and implications above.</li> </ol><p></p><p>This post is already getting way too long, but here's a quick example or two...</p><p></p><p><strong>Example 1:</strong></p><p>C band 4000 MHz transponder, tone off, 5150 LO (eg. port 1, port 2 107.3W, port 3 99W).</p><p>By explanation point [1]: 4000 is less than the switch frequency (7000), so the low LOF (5150) will be used.</p><p>By explanation point [5]: the 22 kHz tone will be off when the low LOF is used.</p><p>=> You can successfully receive this transponder</p><p></p><p><strong>Example 2:</strong></p><p>Ku band 12000 MHz transponder, tone off, 10750 LO (eg. port 3 125W, port 4 103W).</p><p>By explanation point [1]: 12000 is greater than the switch frequency (7000), so the high LOF (10750) will be used.</p><p>By explanation point [5]: the 22 kHz tone will be on when the high LOF is used.</p><p>By explanation point [6]: it doesn't matter if the tone is on or off if there is no switch present.</p><p>=> You can successfully receive this transponder, but only because there is no tone switch connected. If a tone switch were connected, the LNB would need to be connected to the "tone on" input on the switch.</p><p></p><p>I know it is complex, but I really hope the above info helps. I'd be happy to answer any questions. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>mm</p></blockquote><p></p>
[QUOTE="mm1352000, post: 1085709, member: 82144"] Hello again :) Yes, TV Server stores each successfully scanned channel (along with the transponder details) in either a MySQL or SQL Server database. The type of database depends on what you chose during install (default is MySQL). The content of the database can be directly accessed and manipulated using standard tools for those database engines - for example MySQL Workbench, SQL Server Management Studio. You can also edit channel details in TV Server configuration through the TV and radio channels sections. There is no independent 22 kHz tone setting. The tone will be turned on if the transponder frequency is above the LNB switch frequency; otherwise it will be turned off. In other words, the LNB settings (band type and/or LNB override frequencies) determine the 22 kHz tone setting. To successfully configure your switches we have to ensure that you get the correct LNB settings. That's why I asked for the satellite and LNB settings list. Okay, well as above - there is no independent tone switch setting, which makes the LNB settings critical. I'll try to explain the settings I recommend with a bit of detail to try to help you understand. Without further ado... 5150 and 10750 MHz LNBs are supported as standard. If you didn't have to consider 22 kHz tone switches you could use the "C-band" band type for any 5150 MHz LNBs and the "Circular" band type for any 10750 MHz LNBs (note that circular is just a name and doesn't affect/prevent reception of linearly polarised - horizontal and vertical - transponders). For example, to receive 107.3W... The first thing you should always do before scanning is click "update satellite list". This downloads the latest transponder details from the internet and should ensure you find all the available channels. To configure for scanning you'd tick any one of the satellite rows at the top, select Level1AB for DiSEqC port 2, select C-band as band type, and select 107.3W as satellite. If your tuner is DVB-S2 capable then you'd also tick "enable DVB-S2...". Aside from that you don't need to mess with any of the other options if you don't want to. You might consider it useful to enable creating [channel] groups for each satellite so you can see at a glance which satellite each channel came from. Otherwise you can just click "scan for channels"... and wait for the scan to complete. Tone switches do throw a spanner into that nice simple configuration. As explained above, the tone is turned on or off depending on the LNB settings. There is no preset band type that will support the configuration that you want for port 3... so we need to use the LNB frequency overrides in the advanced options. A warning is in order: the overrides affect all tuners (you can't set different values for different tuners) and all channels (ie. if you enable, disable or change the LNB override settings those changes are applied to all previously scanned channels). That's why I don't usually recommend them. They're basically a last resort. What values do you use for the LNB override frequencies? Maybe it is easiest to just tell you and then explain why with a couple of examples. [B]Recommendation:[/B] low LOF = 5150 high LOF = 10750 switch = 7000 [B]Assumptions:[/B] [LIST=1] [*]All C band satellites need to be received with LNBs with 5150 MHz LOFs. [*]All Ku band satellites need to be received with LNBs with 10750 MHz LOFs. [*]All C band satellites will be received with tone off. [*]All Ku band satellites will be received with tone on. [/LIST] [B] Implications:[/B] [LIST=1] [*]You need to swap the connections on the tone switch for port 3 so that 99W (5150) is tone off and 125W (10750) is tone on. Hopefully that is doable. If it isn't we're going to need to get significantly more radical. [/LIST] [B]Explanation:[/B] The most concise explanation I can give for why I recommended the settings above is: [LIST=1] [*]The tuner selects the low LOF when the transponder frequency is less than the switch frequency; otherwise it selects the high LOF. [*]The switch frequency is chosen to tell the tuner which LOF to use. It can be set anywhere between the highest transponder frequency received with LOF 1 and the lowest transponder frequency received with LOF 2. [*]C band frequencies are below Ku band frequencies by definition. [*]When you combine [1], [2], [3] and the fact that you're constrained to one set of LNB settings, it should [hopefully! :)] be clear that the C band LOF should be the low LOF and the Ku band LOF should be the high LOF. It wouldn't work any other way. [*]When the low LOF is selected the tuner turns the 22 kHz tone off; when the high LOF is selected the tuner turns the 22 kHz tone on. This is a standard convention due to the popularity of so-called universal LNBs in Europe and parts of Asia. [*]If no tone switch is present it doesn't matter if the tone is on or off - the signal will be received either way. [*]When you combine [5] and [6] it should hopefully be clear why I stated the assumptions and implications above. [/LIST] This post is already getting way too long, but here's a quick example or two... [B]Example 1:[/B] C band 4000 MHz transponder, tone off, 5150 LO (eg. port 1, port 2 107.3W, port 3 99W). By explanation point [1]: 4000 is less than the switch frequency (7000), so the low LOF (5150) will be used. By explanation point [5]: the 22 kHz tone will be off when the low LOF is used. => You can successfully receive this transponder [B]Example 2:[/B] Ku band 12000 MHz transponder, tone off, 10750 LO (eg. port 3 125W, port 4 103W). By explanation point [1]: 12000 is greater than the switch frequency (7000), so the high LOF (10750) will be used. By explanation point [5]: the 22 kHz tone will be on when the high LOF is used. By explanation point [6]: it doesn't matter if the tone is on or off if there is no switch present. => You can successfully receive this transponder, but only because there is no tone switch connected. If a tone switch were connected, the LNB would need to be connected to the "tone on" input on the switch. I know it is complex, but I really hope the above info helps. I'd be happy to answer any questions. :) mm [/QUOTE]
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How do I specify a DiSEqC switch AND a 22 kHz tone switch with a DVB-S2 satellite card?
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