Thread: 50M Post RS Errors
View Single Post
Old 14-04-2015, 11:25   #79
Jon22
cf.addict
 
Join Date: Jul 2010
Location: Newport, Shropshire
Posts: 338
Jon22 is on a distinguished roadJon22 is on a distinguished road
Re: Post RS Errors

Quote:
Originally Posted by Sephiroth View Post
They should have seen it and be trying to find the source. What's going on in your VM Forum thread on this?

I've resorted to PMing one of the team, seem to get a faster response that way. The person couldn't see that any fault reference had been raised though but did say it could of been a bit too early for it.

Upstream power level has dropped overnight, downstream SNR is still low.

Upstream
US-1 US-2 US-3 US-4
Channel Type 2.0 N/A N/A 2.0
Channel ID 50 N/A N/A 49
Frequency (Hz) 39400000 N/A N/A 46200000
Ranging Status Success N/A N/A Success
Modulation 16QAM N/A N/A 16QAM
Symbol Rate (Sym/sec) 5120000 N/A N/A 5120000
Mini-Slot Size 4 N/A N/A 4
Power Level (dBmV) 43.75 N/A N/A 43.96
T1 Timeouts 0 0 0 0
T2 Timeouts 0 0 0 0
T3 Timeouts 2 0 0 5
T4 Timeouts 0 0 0 0

Downstream
DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 299000000 267000000 275000000 283000000 291000000 307000000 315000000 323000000
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked Locked Locked
Channel ID 13 9 10 11 12 14 15 16
Modulation 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level (dBmV) 8.29 7.92 7.78 7.92 8.15 8.81 8.88 9.07
RxMER (dB) 33.38 33.16 33.16 33.16 33.60 33.72 33.72 33.72
Pre RS Errors 1220703 9651255 11868496 5900224 1630301 13744573 621134 704209
Post RS Errors 140510 82871 109604 117715

Just had another call from the tech, he reckoned it should be sorted within the next week or so.
Jon22 is offline   Reply With Quote