<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Thanks Daryl, I'm not sure I understood what you said. So I'll describe my set up (hope this little ASCII diagram works OK!):</div><div><br></div>
<div><div><font face="courier new, monospace">Antenna --</font></div>
<div><font face="courier new, monospace"> |</font></div><div><span style="font-family:'courier new',monospace;white-space:pre-wrap"> </span><span style="font-family:'courier new',monospace">| --> TV1 (picture quality good)</span><br>
</div><div><font face="courier new, monospace"><span style="white-space:pre-wrap"> </span>|</font></div><div><font face="courier new, monospace"><span style="white-space:pre-wrap"> </span>| --> TV2 (picture quality good)</font></div>
<div><font face="courier new, monospace"> |</font></div><div><font face="courier new, monospace"><span style="white-space:pre-wrap"> </span>| --> Cheap $5 splitter</font></div><div><font face="courier new, monospace"> |</font></div>
<div><font face="courier new, monospace"> | --> HD Homerun (2 tuners) --> 1Gb switch --> Mythbackend</font></div><div><font face="courier new, monospace"> |</font></div><div><font face="courier new, monospace"> | --> PCI Card --> Mythbackend</font></div>
</div><div><br></div><div>Does that make sense? If you still think it's a signal strength issue is there any way I can verify that? And if I need to get a booster, are there different types which are better than others? E.g. do some install at the antenna vs others install at the wall outlet?</div>
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</blockquote></div><br></div><div class="gmail_extra">More info on this... This morning I put 2 programs to record at the same time. All different broadcasters so I knew that all 3 tuners would be used - 2 on the HD Homerun and 1 PCI card. I watched some of the recordings and found two were OK, and one broke up in places. The one that broke up was also highlighted yellow in Watch Recordings which I believe indicates a poor quality recording.</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">I assumed that the bad recording would be the PCI card, and the two from the Homerun would be OK. After running some queries to track down which tuner recorded which program, I found the following:</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">Homerun tuner 0 = BAD recording</div><div class="gmail_extra">Homerun tuner 1 = good recording<br></div><div class="gmail_extra">PCI tuner 0 = good recording<br>
</div><div class="gmail_extra"><br></div><div class="gmail_extra">This surprised me. Surely if one of the Homerun tuners was OK, they would both be OK? Unless it's to do with signal strengths varying by channel, which I presume could mean:</div>
<div class="gmail_extra">- either the poorer channels aren't tuned to the right frequency, or ...</div><div class="gmail_extra">- they're more susceptible to a overall weakened signal strength?</div></div>