tvheadend/docs/html/config_tvadapters.html

<div class="hts-doc-text">

<h3>The adapters and tuners are listed / edited  in a tree</h3>

<ul>
  <li>To edit an item, click on it. To commit edited changes back to
      Tvheadend press the 'Save' button. In order to change a Checkbox cell
      you only have to click once in it.
</ul>
</p>

<h4>The rows have the following functions</h4>

<dl>
  <dt>Enabled</dt>
  <dd>If selected, the IPTV service will be enabled an use for channel
      subscriptions.</dd>

  <dt>Name</dt>
  <dd>The name of this tuner.</dd>

  <dt>OTA EPG</dt>
  <dd>Allow OTA EPG (epggrab) scan on this input device</dd>

  <dt>Priority</dt>
  <dd>The tuner priority value (higher value = higher priority to use this
      tuner).</dd>

</dl>
</p>

<h4>LinuxDVB specific rows</h4>

<dl>
  <dt>Keep FE open</dt>
  <dd>Enable to not close the LinuxDVB frontend device in the idle state.</dd>
</dl>      

<h4>SAT>IP specific rows</h4>

<dl>
  <dt>Full Mux Rx mode supported</dt>
  <dd>Enable, if the SAT>IP box supports the full mux rx mode (pids=all)
      parameter.</dd>
      
  <dt>Signal scale (240 or 100)</dt>
  <dd>Some SAT>IP boxes has only 0-100 scale. If your signal is too low, try
      value 100 here.</dd>
      
  <dt>Maximum PIDs<dt>
  <dd>Maximum supported PIDs in the filter of the SAT>IP box.</dd>
  
  <dt>Maximum length of PIDs<dt>
  <dd>Maximum length in characters for the command setting PIDs to the
      SAT>IP box.</dd>

  <dt>addpids/delpids supported</dt>
  <dd>Enable, if the SAT>IP box supports the addpids/delpids command.

  <dt>PIDs in setup</dt>
  <dd>Enable, if the SAT>IP box requires pids=0 parameter in the SETUP RTSP command.</dd>

  <dt>Force pilot for DVB-S2</dt>
  <dd>Enable, if the SAT>IP box requiest plts=on parameter in the SETUP RTSP
      command for DVB-S2 muxes.</dd>

  <dt>UDP RTP Port Number (2 ports)</dt>
  <dd>Force the local UDP Port number here. The number should be even (RTP port).
      The next odd number (+1) will be used as the RTCP port.</dd>

  <dt>Satellite Positions</dt>
  <dd>Select the number of satellite positions supported by the SAT>IP
      hardware and your coaxial cable wiring.</dd>

  <dt>Master Tuner</dt>
  <dd>Select the master tuner.
     <p>The signal from the standard universal LNB can be split using
        a simple coaxial splitter (no multiswitch) to several outputs.
        In this case, the position, the polarization and low-high
        band settings must be equal.</p>
     <p>If you set other tuner as master, then this tuner will act like
        a slave one and tvheadend will assure that this tuner will not
        use incompatible parameters (position, polarization, lo-hi).</p>
  </dd>

  <dt>Next tune delay in ms (0-2000)</dt>
  <dd>The delay before tuning in milliseconds after tuner stop. If the time
      after previous start and next start is greater than this value -
      the delay is not applied.</dt>

  <dt>Send full PLAY cmd</dt>
  <dd>Send the full RTSP PLAY command after full RTSP SETUP command. Some
      device firmwares requires this to get MPEG-TS stream.</dd>

  <dt>Force teardown delay<dt>
  <dd>Force the delay between RTSP TEARDOWN and RTSP SETUP command (value
      from 'Next tune delay in ms' is used). Some devices are not able to handle
      quick continuous tuning.</dd>

</dl>

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