<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 11/04/2009, at 5:40 PM, James Booth wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="font-family: 'Sans Serif'; font-size: 10pt; font-weight: 400; font-style: normal; "><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">I've been playing around with VDPAU and Freeview HD for a week or so now, and I am starting to come to the conclusion that something is very wrong with my system.</div><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; "></p><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">Initially I had all channels working, but TV3/4 were rough, and TVNZ channels could sometimes be a problem. I was focused on vdpau setup etc and assumed that the various error messages and performance issues I was getting related to problems with this. Indeed, with a bit of playing around things semed to get almost 'good'. However, after a week I have noticed the following:</div><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; "></p><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">1) Signal strength is always strong, but S/N is sometimes stable but other times all over the show.</div><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">2) Running a full scan of the transports is very hit-and-miss. Sometimes it will pick up everything, other times it will only pick up one transport.</div><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">3) Running a transport scan manually specifying the frequency will get a result. But if I then scan the other transports in the same way I get the same set of channels for each transport, as if the card has not actually switched frequencies.</div><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">4) Once all the channels are configured, often they will not tune properly (only get a partial lock in Live TV). If I go back, delete, and re-scan they will often then work perfectly.</div><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">5) It may be just coincidence, but it seems that if I get the TVNZ multiplex working the Kordia multiplex will not work, and vice versa.</div><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">6) A full scan tends to produce a number of extra transport listings with a frequency of zero.</div><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; "></p><div style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; white-space: pre-wrap; ">I am using a Hauppauge HVR-1200. Can anyone suggest what would produce the above other than a dicky DVB-T card? I have a new, professionally installed aerial with masthead amp, so I am working on the assumption there is nothing wrong with that end of things.</div>_______________________________________________<br>mythtvnz mailin<br></div></span></blockquote><br></div><div><br></div><div>Try running dvbtune against the various multiplexes and post your output. Here's my values which are pretty stable</div><div><br></div><div><div>mythtv@mythtv:~/dvb/dtt$ dvbtune -m 666000000</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div><br></div><div>mythtv@mythtv:~/dvb/dtt$ dvbtune -m 538000000</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div><br></div><div>mythtv@mythtv:~/dvb/dtt$ dvbtune -m 570000000</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div>Signal=38293, Verror=0, SNR=65535dB, BlockErrors=0, ()</div><div><br></div><div>Re-check a couple of times to see if after tuning one multiplex another multiplex stops working.</div><div><br></div><div>Also does the HVR-1200 have a LNA (Low noise amp) like the Nova-T 500?</div><div><br></div><div>Steve</div><div><br></div><div><br></div></div><div><br></div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Steven Ellis - Technical Director<br>OpenMedia Limited<br>email - <a href="mailto:steven@openmedia.co.nz">steven@openmedia.co.nz</a><br>website - <a href="http://www.openmedia.co.nz/">http://www.openmedia.co.nz</a><br></div></div></span> </div><br></body></html>