A Reason to retain SD duplicates of HD broadcast channels - Canadian TV, Computing and Home Theatre Forums
 
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post #1 of 4 (permalink) Old 2013-06-21, 09:06 PM Thread Starter
 
Join Date: Oct 2003
Location: Elliot Lake, ON: Shaw Direct HD-DSR605, Toshiba 34HF83, Yamaha DVD S1500 NTSC-PAL Region Free
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Exclamation A Reason to retain SD duplicates of HD broadcast channels

A number of members have voiced opinions that SD duplicates of HD channels should be removed as being a waste of scarce spectrum on the transponders.

I beg to differ in this regard, specifically with regards to broadcast channels.

Inclement weather, fog, rain or falling snow can severely disrupt signal reception.

In many such cases the HD signals are much more susceptible to disruption and we can often lose HD yet be able to switch to the SD equivalent and get reasonably good reception.

Fog, the denser the worse, is particularly bad in that it seems to soak up microwave signals and often last much longer than rain or snow.

With weather seeming to be becoming increasingly problematic in Canada it seems that now is certainly not the time to put all our eggs in one basket, especially one as porous as HD.

SD signals are infinitely better than nothing!
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post #2 of 4 (permalink) Old 2013-06-21, 11:32 PM
57
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Join Date: May 2002
Location: Toronto, Rogers, 9865 & 8300-eHDD, Sharp LC75N8000U, Denon AVR4310Ci; Sony KDL40W3000, 9865
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Reception is only down for a few hours a year. Hardly a matter of life and death. If you're missing more than that, it's because your dish is not properly aimed, or perhaps improperly sized or not cleaned off.

The topic of rain or snow fade on Shaw Direct barely comes up as evidenced in the following thread.

http://www.digitalhome.ca/forum/showthread.php?t=140960

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post #3 of 4 (permalink) Old 2013-06-22, 03:50 PM Thread Starter
 
Join Date: Oct 2003
Location: Elliot Lake, ON: Shaw Direct HD-DSR605, Toshiba 34HF83, Yamaha DVD S1500 NTSC-PAL Region Free
Posts: 284
Thanks 57!

Our dish and 505 was installed by SC seven years ago and because of reception problems plus large snow accumulations SD installed a cover on the dish 3 years ago.
No problems for a while but now we lose HD a couple of times a month for about two hours each time.

On Friday night we lost NBC Detroit on ch 320 and switched to the SD feed on ch 75 but even that started pixellating briefly during very heavy rain and we had to go to CHCH Hamilton ch 41.

Not sure if our 60cm dish is really big enough; we're about 44north, 86west.

We have Shaw coming out in a couple of weeks to upgrade our dish and install the new 605 we just purchased from Dell.

Hopefully this will solve our particular problem, except in the heavy snow accumulation and severe winters we get up here (contractors have to clear our roof once or twice a year).

Last edited by 57; 2013-06-22 at 04:18 PM. Reason: sp, name not Hugh
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post #4 of 4 (permalink) Old 2013-06-22, 03:59 PM
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the only benefit i see of keeping SD channels is more utilization of your PVR Hard Disk Drive, ie sd can store more recordings, though the quality is not as great and its 4:3 instead of 16:9
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