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Thursday, January 14th, 2010 2:37 AM

Some HD National Channels I get Searching for Satellite Signal (771)

Recently I lost signal (getting Searching (771) Message) on some, but not all HD channels. The Local HD's come in and some of the National HD's do as well but about half of the National HD's get the (771) error message.

These are my Signal Strength Readings:

Satellite transponders (32 total at 101º)
[Most of your standard definition channels are beamed from 101ºW]
1-8 90 100 95 97 95 100 95 100
9-16 95 100 96 92 96 100 95 100
17-24 95 98 96 95 96 100 96 100
25-32 96 98 96 92 98 100 96100

Satellite transponders (16 total at 99º(s))
[Local HD channels for some cities]
1-8 62 25 15 48 0 0 NA NA
9-16 NA NA NA NA NA NA 0 62
17-24 0 0 70 62 47 40 0 0

Satellite transponders (14 total at 99º(c))
[National HD channels]
1-8 81 80 83 88 82 81 85 86
9-16 82 85 86 84 83 NA NA

Satellite transponders (16 total at 103º(s))
[Local HD channels for some cities]
1-8 0 0 0 0 0 0 NA NA
9-16 NA NA NA NA NA NA 0 98
17-24 0 48 0 99 0 0 0 0

Satellite transponders (14 total at 103º(c))
[National HD channels]
1-8 0 95 0 95 0 95 0 95
9-16 0 95 0 95 0 96 NA NA
17-24 NA NA NA NA NA NA NA NA


I'm guessing the alternating 0's in the 103(c) are what is causing the no signal message.

This is happening on four separate HD DVR's (one HR23 and three HR22's). Dish is a Slimline-3 using a 6x8 Zinwell Multiswitch.

What would cause this? This dish hasn't moved at all so I don't believe the alignment is off. There are no weather issues or obstructions blocking the dish. This setup worked perfectly since install in Jan. 2009 until this week.

Any suggestions? Thanks!
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