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Dc2tracker

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Reply with quote  #1 
3940H 29270 3/4 Tp12 Dc2 megapipe receiver's only.
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Dc2tracker

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Reply with quote  #2 
Quote:
Originally Posted by Dc2tracker
SES 1 3940H 29270 3/4 Tp12 Dc2 megapipe receiver's only.

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iboston

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Reply with quote  #3 
Perfect, this is my first confirmed MegaPipe that i got to in time.

It works on both the DSR-4410 and my older DSR-4402x

Ps. the VCT and channel information is correct for this mux on lyngsat.

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Joe

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Reply with quote  #4 
This also is my First Mega pipe channels to see working
thanks for the post
Dc2tracker

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Well guy's, now that the two of you have confirmed your getting these megapipe channel's , i would say your receiver's are all working at 100% . To all others, this mux is still going strong in FP mode.
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iboston

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Reply with quote  #6 
I gotta say Dc2tracker, this 4410 sure makes it CAKE WALK to scan the channels. 
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majortom

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Reply with quote  #7 
Not to sound naive. but what is megapipe? never seen a dc2 receiver of any sort. So just curious.
is the recent wave of FP muxes just the provider going through upgrades?
ie - set to FP mode while their clients install new receivers with new SW??


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Perfect 10 7.5' mesh Chapparal C/Ku Co-Rotor feed, Norsat 8115 CBAND, Norsat 4106A Ku Thomson Saginaw Actuator, Vbox positioner,
Home Brew Polarotor683 Servo circuit. Openbox S9, Prof7500, v4l-updatelee linux drivers installed.
ricardo's geo-orbit archive: https://web.archive.org/web/20150516202529/http://www.geo-orbit.org:80/sizepgs/tuningp2.html#anchor469886
Dc2tracker

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Reply with quote  #8 
Quote:
Originally Posted by iboston
I gotta say Dc2tracker, this 4410 sure makes it CAKE WALK to scan the channels. 
Yeah , there also very bullet proof !

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Dc2tracker

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Reply with quote  #9 
And back to NS/MP mode srcambled.
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Dc2tracker

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Quote:
Originally Posted by majortom
Not to sound naive. but what is megapipe? never seen a dc2 receiver of any sort. So just curious.
is the recent wave of FP muxes just the provider going through upgrades?
ie - set to FP mode while their clients install new receivers with new SW??

Yeah Majortom : Many Dc2 commercial receivers can lock megapipe, however NO 4DTV receiver can lock megapipe at all. These known to go Fp mode Dc2 muxes have been around for many years as i for one have been locking them for years. I would have to say that many have gave up on these , and the reason youve been seeing more of these muxes is maybe because i track all these signals up to 3 times a day. You might say i live up to my name. Im just the newer kid on this forum. Hope this helps?

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majortom

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Reply with quote  #11 
roger... but what's megapipe though?
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Perfect 10 7.5' mesh Chapparal C/Ku Co-Rotor feed, Norsat 8115 CBAND, Norsat 4106A Ku Thomson Saginaw Actuator, Vbox positioner,
Home Brew Polarotor683 Servo circuit. Openbox S9, Prof7500, v4l-updatelee linux drivers installed.
ricardo's geo-orbit archive: https://web.archive.org/web/20150516202529/http://www.geo-orbit.org:80/sizepgs/tuningp2.html#anchor469886
wejones

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Reply with quote  #12 
Quote:
Originally Posted by majortom
roger... but what's megapipe though?


I don't have a complete understanding of megapipe, however it has been around for a long time. I've never owned a 4DTV, but have owned a couple DSR 4200 receivers, which are commercial receivers similar to the 4DTV, and always read reports of some transponders which were "megapipe" and couldn't be received, and there were also transponders that people called "combo mode" which couldn't be locked.    Eventually, I got a Genpix receiver, which could lock all these transponders, and at that point, I have assumed that megapipe and combo mode are the same thing, ie that perhaps megapipe is just a trade name for combo mode?  I'm not sure.
   Combo mode, however seems to be related to the "I"/"Q" phases of the signal, which is related to the constellation diagrams you see when running programs like Crazyscan, ie I and Q are the X and Y coordinates of the constellation plots.
   My incomplete understanding is that with QPSK DCII signals, channels can be BPSK encoded only on the "I" signal or they can be BPSK encoded on the "Q" signal, or the transponder can be encoded in what would seem to be a more natural QPSK combo mode, where all the channels are in the same data stream. 
   In practice, DCII are usually found in only a handfull of SRs, the most common of which are 19510 and 29270.  The 19510 transponders seem to be in combo mode, and all DCII receivers can lock them, however the 29270 SR signals can be either in combo mode or split mode.  Any DCII receiver can receive the split mode, and you'll typically see half the channels in "I" mode and half the channels in "Q" mode, but not all DCII receivers can receive transponders in the combo mode.  In the combo (I/Q) mode, all channels will be seen in the same stream.  
   So the confusing thing is that all DCII receivers can do combo mode for transponders with SRs up to 19510, but not all receivers can do combo mode at the higher 29270 SR.  So perhaps "megapipe" is the technology that somehow allows the DCII receicers to do combo mode on the higher SR transponders, even though they can already do it on the lower SR speeds????
   Anyway, that's my incomplete understanding.  I'd like to hear a more complete explanation.


majortom

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Reply with quote  #13 
Thanks for that JJ. Have never owned, nor seen 4DTV, a commercial DCII, or genpix, thus the question...


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Perfect 10 7.5' mesh Chapparal C/Ku Co-Rotor feed, Norsat 8115 CBAND, Norsat 4106A Ku Thomson Saginaw Actuator, Vbox positioner,
Home Brew Polarotor683 Servo circuit. Openbox S9, Prof7500, v4l-updatelee linux drivers installed.
ricardo's geo-orbit archive: https://web.archive.org/web/20150516202529/http://www.geo-orbit.org:80/sizepgs/tuningp2.html#anchor469886
Dc2tracker

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Reply with quote  #14 
This is currently ITC (fp mode). Megapipe receivers only.
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Dc2tracker

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Reply with quote  #15 
SES 1 3940H 29270 3/4 TP-12
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Fellow Members, your posts are welcome here! Do not worry about posting everything perfect. Different receivers and LNB's will give you different Frequencies and Symbol Rates. Some set top boxes, PCI cards and USB receivers, Do Not Require all of the same information that others may need. It is not Required to post everything that others may need to tune in a feed. It is just most important to share the find. We can always adjust the Frequency and Symbol Rates and try the various Modulations and FEC's on our own receivers until we get a lock and then give a polite reply with what works for your receiver, as that information might help others as well. We all appreciate the efforts and energy of the Posters!

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