3 REPLIES
Rookie

Re: Ceton Infinititv 6 pci express pixelation/ macroblocking

[ Edited ]

I have the infinitv 4 and infinitv6 on two diff computers.. Both suffer from varying degrees of macro blocking,..   If you have an Infini-tv 4 that has no problems,..  then good for you.. you are the one lucky soul in a million..    after having owned these tuners since 2010 I've just learned to ignore it.  (but its not very bad on my tv.. )  but its there just the same.     I think its a network latency issue.  But I don't have any evidence to back that up. 

 

I did map out the channels and made a graph showing chan freq vs signal strength..   But this stuff varies depending on outside temps.  Most of my channels run hot (at 8 dBmv or higher)  SNR is above 38 dB.    Seems like your best bet may be to shoot for getting your signal strength into the positive digits for starters.   You can purchase a zero loss splitter for about 50-60 bucks.

(takes a single cable in, and splits it out 8 ways without loss of signal strength.  Then do direct cable runs to your equipment. )   You really need to have a truck roll to see what the signal strength and SNR is comming off the main cable feed into your house.  

 

 You should verify that RG-6 cable is used throughout the run.   If you can eliminate some of those passive splitters, do it.  (some of those three way jobs will attenuate  one of the outputs by 7dbmv, while the other two would be -3dBmv)   Check em.. make sure your tuner has one of the -3 outputs..     Other than that, its hit or miss.  If the cable feed going into your house has bad/poor signal, then you need the cable co out to make adjustments if they can...

 

Most modern cable nodes have adjustable taps..  They s/b able to goose it up if needed.

 But if you get rid of those splitters, and use a powered zero loss amplified splitter, it may help.  I notice your SNR levels are in the 35dB range.  thats ok... but the general rule its if you have low Signal Strength (less the -7dbmv) then you need very good SNR (38 or above).

Your numbers for dBmv are low..    

 

You can buy a 4 port zero loss splitter too for under 40 bucks.  just google zero loss cable splitters.  (PCT-VC-5U is one of many models)  I use the 8 way version for my home.

 

It will be a pita to install in an attic, but trust me, its worth it. 

 

 

Rookie

Re: Ceton Infinititv 6 pci express pixelation/ macroblocking

Modem logs:

Nov 08 2015 15:27:19     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Nov 08 2015 15:27:18     6-Notice     I401.0     TLV-11 - unrecognized OID;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Nov 08 2015 15:27:18     5-Warning     Z00.0     MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:13     6-Notice     N/A     Cable Modem Reboot due to power reset ;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Nov 08 2015 12:54:48     6-Notice     D106.0     DHCP Renew - lease parameters tftp file-?BEWGlxOUYmnw5xIK6ODs@Cujg7CE21fi63Jw7fj7FXic3PR6X6f16 modified;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Nov 05 2015 07:11:13     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Nov 05 2015 00:54:41     6-Notice     D106.0     DHCP Renew - lease parameters time server-72.183.77.13;tftp file-?BEWGlxOUYmnw5xIK6ODs@Cujg7IcRyiqsTw8Q2yuEv2orjFCTPPd+ modified;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Oct 22 2015 11:06:04     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Oct 22 2015 11:06:03     6-Notice     I401.0     TLV-11 - unrecognized OID;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Oct 22 2015 11:06:03     5-Warning     Z00.0     MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:48:25     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:48:03     3-Critical     D01.0     DHCP FAILED - Discover sent, no offer received;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:47:30     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:47:19     3-Critical     D01.0     DHCP FAILED - Discover sent, no offer received;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:46:47     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:46:27     3-Critical     D01.0     DHCP FAILED - Discover sent, no offer received;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:45:57     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:45:36     3-Critical     D01.0     DHCP FAILED - Discover sent, no offer received;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:45:02     3-Critical     R02.0     No Ranging Response received - T3 time-out;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:44:43     3-Critical     D01.0     DHCP FAILED - Discover sent, no offer received;CM-MAC=94:62:69:f0:e7:12;CMTS-MAC=00:01:5c:77:8e:6d;CM-QOS=1.1;CM-VER=3.0;

 

Modem Signal information:

 

Downstream Bonding Channel Value

Channel ID10 
Frequency777000000 Hz 801000000 Hz 807000000 Hz 825000000 Hz 
Signal to Noise Ratio35 dB 36 dB 36 dB 35 dB 
Downstream ModulationQAM256 QAM256 QAM256 QAM256 
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
-8 dBmV  -8 dBmV  -7 dBmV  -9 dBmV  

 

 

Upstream Bonding Channel Value

Channel ID26 25 27 28 
Frequency24200000 Hz 19400000 Hz 30600000 Hz 37000000 Hz 
Ranging Service ID11103 11103 11103 11103 
Symbol Rate5.120 Msym/sec 2.560 Msym/sec 5.120 Msym/sec 2.560 Msym/sec 
Power Level51 dBmV 52 dBmV 51 dBmV 52 dBmV 
Upstream Modulation[3] QPSK
[1] 16QAM
[2] 64QAM
 
[3] QPSK
[2] 16QAM
 
[3] QPSK
[1] 16QAM
[2] 64QAM
 
[3] QPSK
[3] 16QAM
 
Ranging StatusSuccess Success Success Success 
Signal Stats (Codewords)Bonding Channel Value
Channel ID10 
Total Unerrored Codewords6964881 6470002 6470004 6469914 
Total Correctable Codewords15 
Total Uncorrectable Codewords705 561 705 581 

 

 

 

From the Timewarner drop, the cable goes into a 3 way splitter. Off the 3 way splitter in the atic, one goes to the Ceton, one goes to other room and one goes to the modem. The Cable that goes into the Ceton is split, one goes to the TA and the other goes to the Ceton.


Expert

Re: Ceton Infinititv 6 pci express pixelation/ macroblocking

[ Edited ]

If you have TWC internet, copy and paste the modems signal level and error log pages and where it is splitter wise to the ceton box...

 Are you using the loop thru of the TA to feed it as well or is there another splitter?

 

 

Rookie

Ceton Infinititv 6 pci express pixelation/ macroblocking

We are having an issue with our Ceton Infinititv 6 card. We started experiencing pixelation after TimeWarner switched us over to all digital late July/early August. Ever since then, we experience macroblocking after about 30 minutes of watchng certain channels, especially 1209 (CBS) and natgeo/natgeo wild. Time Warner has been out and replaced a coax cable in the house and did a line test and our signals check out fine. Our SNR is 24db and our channel signals are between -8db-0db. We have tested with the ethernet version of the infinititv and experience the same issues.

 

We tested with our old infinititv 4 and our issues have gone away, no more macroblocking or pixelation. We have a ticket open with ceton about this and they gave us the standard reply of "the card itself looks fine, please check the signal/coax cables and get with your cable provider."

 

Has anyone else expereinced or currently experiencing this problem with their Ceton infinititv 6? We would like to get this resolved as this has been going on 4 months since we have been dealing with this.