AMC 21

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toucan-man

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Jul 13, 2008
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Should I re-scan AMC21 since this was posted a few days after I finally got the 1.2 tuned to it?:confused:

I re-scanned last night and one of the new channels is labeled "Telairity Encoded" (12096 V 4340). My receiver doesn't like it. What's this encoding and why are they using it?
 

B.J.

SatelliteGuys Pro
Oct 15, 2008
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Western Maine
I re-scanned last night and one of the new channels is labeled "Telairity Encoded" (12096 V 4340). My receiver doesn't like it. What's this encoding and why are they using it?

There is definitely a transponder there, but I can't lock it.
I also saw an encrypted KBS World transponder down at 12078V/2680.
There was another peak between KBS and the 12104 peak. Seems to be around 12187V with an SR around 8057, but I can't lock that either. I've tried QPSK and DVB-S2 8PSK on both 12087 and 12096.

blscimg1.jpg


The 12096 peak looks narrower than the 4340 peak at 12104, so perhaps they keep the carrier there, and only occasionally modulate or something???
 
Last edited:

B.J.

SatelliteGuys Pro
Oct 15, 2008
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Western Maine
The KBS World TP is bleedover from G10/18

OK, thanks. That makes sense. That explains why it was so weak. I didn't think of that because I saw it on 2 different dishes, and 4 different receivers, but yes, I have a hard time separating those 2 sats.
 

Joe Moll

Well-Known SatelliteGuys Member
Jun 8, 2007
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great falls mt
Montana PBS has a secondary channel that shows the Montana state legislature. It will be on for the next four months, or, till the legislature adjourns. 11958H2532 V33 A38 PCR33 Montana PBS puts this channel up so the people of Montana can see the legislature and what they are doing for the next 90 days.
 

Joe Moll

Well-Known SatelliteGuys Member
Jun 8, 2007
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great falls mt
I,m picking up the Montana legislature channel right now on AMC 21. It might be on a spot beam to Montana only. If anyone else outside Montana can pick up the signal outside the state of Montana, please let me know.
 

Mr Tony

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Nov 17, 2003
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OK I lied...a re-blindscan got it on 1st try...72 quality in Minnesota

I think I misread your original post about it ;)
 

photoman76

SatelliteGuys Pro
Jan 8, 2005
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I'm not sure why it's there, but there is a PBS mux at 12040 H 30000. The mux has the same 9 channels as 12120 H 30000.
 

B.J.

SatelliteGuys Pro
Oct 15, 2008
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Western Maine
I'm not sure why it's there, but there is a PBS mux at 12040 H 30000. The mux has the same 9 channels as 12120 H 30000.

Sure enough.... neat. Thanks.

I wonder what's up. Perhaps there was some problem with the 12120 transponder? Several days ago, I was getting 12120 fine, then about 2 days ago, I lost it almost completely, even though I was still getting near full scale quality on the 12150 transponder. Then a day later, and since, 12120 was coming in fine again. It's very strong right now. I'm just wondering whether they were having problems with 12120, and put up the 12040 as a temporary substitute?
 

Mr Tony

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Nov 17, 2003
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Thanks, Tony ! Did you try cranking up LPB on your Winegard , yet?
:)

Brent

Just tried today and YAY!! got LPB in on the 76cm winegard and the Coolsat 8000

47 quality so Create (LPB-3) breaks up but the others are just fine. That HD pick is pretty dang spiffy :)
 

Tron

SatelliteGuys Master
May 6, 2005
6,599
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Metro New Orleans, LA
Absolutely. Iceberg, the fact that you're getting DVB-S2 on a 30" dish is cause for hope regarding the next generation of satellite reception. I was afraid I'd have to go larger with my dishes once S2 becomes more common, but this proves there's not necessarily a correlation between S2 and a need for a larger dish.
 

brentb636

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Jun 24, 2006
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5 miles N of Saugatuck, Mi
I'll have to check THEN. I've never been able to figure out if they weaken one of the beams, or turn one off, or WHAT . I do know that the damn thing disappears with the night ! [edit] This morning , Tony, my CS8000 is showing Q=62% with a 90cm Fortec. [/edit]
:)
 

Anole

SatelliteGuys Master
Sep 22, 2005
11,819
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L.A., Calif.
the cup is half ... what?

Absolutely. Iceberg, the fact that you're getting DVB-S2 on a 30" dish is cause for hope regarding the next generation of satellite reception. I was afraid I'd have to go larger with my dishes once S2 becomes more common, but this proves there's not necessarily a correlation between S2 and a need for a larger dish.
:D What I think it proves, is that on a clear channel, you can do pretty much anything. :eek:
But, as the rest of this thread demonstrates, if you have adjacent-satellite interference messing with your bit-error-rate, then that big dish helps a lot!
You don't need more signal, you just need a clean signal, absent all that interference.

Look at Whitesprings on 129. It has an FEC of 1/2!
That means one out of two bits is error-correction code.
The receivers of today can pull that station out of the worst possible, weak, and noisy environment.

If the broadcasters operated S2 at an FEC of 1/2, I'm sure we'd be seeing folks picking it up on 18 and 20 inch dishes, too!
But no! They choose to operate it at FEC rates that offer even LESS error correction than ever!
And what dish size are they using at down-link sites? Eight foot?...?... :rolleyes:

So, if today someone gets S2 on a 30" dish, that's a lot like getting Whitesprings on a 20.
It's the exception. Don't assume it's going to be the rule.

The unappetizing thing this thread shows, is that while today we can recommend 36" dishes to newbies for reliable reception, tomorrow that may become 48". :(
 
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