Tech guys, Help. See vid I posted

[mark40511]

This is happening only on my local ABC affiliate. Has been happening periodically for a while. At first I thought it was a signal strength issue, so I called D* to see what transponder this channel was on. Based on what they told me, this channel has a signal strength in the low 90s.Also a side note. the pic quality of this channel to me isn't even SD standards, then one day, its as if someone flipped a switch and the channel gets really clear! see vid..


http://www.youtube.com/watch?v=Ia2Tv5Yrtx4

[houskamp]

Sgnal loss..
Could be to your local station, station to D*.. do you have any way of picking it up "off air"?

[mark40511]

Sgnal loss..
Could be to your local station, station to D*.. do you have any way of picking it up "off air"?

I guess. I have an HR21 though. Anyway, I've never seen "green" signal loss not to mention the audio stayed on the entire time it was happening.

[Mertzen]

I guess. I have an HR21 though. Anyway, I've never seen "green" signal loss not to mention the audio stayed on the entire time it was happening.

Just the first stages of signal loss where the error correction can still make up parts of the image.

[Starchy77]

Trees blowing in front of the dish could cause a picture like this (I recently cut one down that was giving me some grief - I only got this type of loss in storms or when it was really windy, but never in the winter when the leaves were gone).

[texasbrit]

I guess. I have an HR21 though. Anyway, I've never seen "green" signal loss not to mention the audio stayed on the entire time it was happening.
Green pixelation has been a problem with ABC stations for years now. It's something to do with a piece of equipment in the encoder chain. There was a long -running thread about it http://www.dbstalk.com/showthread.php?t=125609&highlight=green+pixelation


I haven't seen it here in DFW on ABC for about six months now.

[mark40511]

Trees blowing in front of the dish could cause a picture like this (I recently cut one down that was giving me some grief - I only got this type of loss in storms or when it was really windy, but never in the winter when the leaves were gone).

No tress. Clear line of sight. Strong signal in the low 90s.

[rorkin]

I had the same phenomonon on cnbc this morning.. No trees .. Never saw anything like it before..Perhaps a transponder issue ??

[KCCardsfan]

Green pixelation has been a problem with ABC stations for years now. It's something to do with a piece of equipment in the encoder chain. There was a long -running thread about it http://www.dbstalk.com/showthread.php?t=125609&highlight=green+pixelation


I haven't seen it here in DFW on ABC for about six months now.

This is correct, green is from the station equipment. Also, with the newer tuners in TV's this is not always detected from an off-air signal, so comparing the Directv picture to off-air isn't always a valid test anymore.

This usually occurs on the Fiber transmit equipment from the station to the carriers (DirecTv, Dish, cable) and is sometimes hard to correct, the standard answer from the stations is 'we don't see it'. Recordings like this and Data from equipment such as a MTM400 is the only way to prove the errors in the stream to the station.

[mark40511]

This is correct, green is from the station equipment. Also, with the newer tuners in TV's this is not always detected from an off-air signal, so comparing the Directv picture to off-air isn't always a valid test anymore.

This usually occurs on the Fiber transmit equipment from the station to the carriers (DirecTv, Dish, cable) and is sometimes hard to correct, the standard answer from the stations is 'we don't see it'. Recordings like this and Data from equipment such as a MTM400 is the only way to prove the errors in the stream to the station.

Hmmm, maybe the "station" can take a long hard look at the youtube vid.