SatSig topic:

Speedcast After Upgrade ??? Help

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Apr 29^th, 2007 at 3:43am

Hallo,

At 21 April 2007, Speedcast KU-Band (PAS12) had upgraded the RCST (Linkstar) to the new version like below:

lmep
0xXXXXX SW rcst4-1.0.8.16p8.term.exe () rcst4s-2.2.0011.term.exe (PE)
0xXXXXX FW rcst4.16100106L.xilinx.dat () rcst4.15250706L.xilinx.dat (PE)

After upgrade done, my RxPower decreased about 4 value (before -46 and after -50).

Also, my upload speed decreased 30-50%.

Please confirm if there are other people have same problem like me.

FYI, here my TCMP result after upgrade:

tcmp
RSCorrectedErrorCount    0 RSUncorrectedErrorCount 0
QPSKBER       0.00005333591 I2CErrorCount       0
LostSyncCount       0 TimeSynced       4347
MaxTimeSynced    4347 Synced 1
TimeUnSynced       54 NCODeviation 0
CarrDeviation 0.002660821 VCOLocked    0
CodeRate    3/4 CarrierPhase LOCKED
RSVit    LOCKED UCActive NOT ACTIVE
Rs    4.073489 Fs    60
frequency 1416 UCLoaded    1
RxPower    -50.14016 RSFrameLength    700168018

BER 0.00005333591

Thanks.

May 1^st, 2007 at 7:13pm

Anybody ??

Please give me information for this issue.

After upgrade, my BER never got 0. Anybody have same issue ?

May 1^st, 2007 at 8:57pm

Raw BER rates like 0.00005 are excellent. The QPSK BER is that BEFORE FEC is applied so the after FEC bit error rate is virtually nil.

Look for increases in the uncorrected errors in the output date , if you ever see them. A few bits per day perhaps out of hundreds of millions - what is your carrier downlink bit rate: 20 Mbit/s perhaps ?

If your data throughput has dropped down it will be due to factors other than your dish pointing, which is clearly excellent. I would suspect congestion, configuration, routing problems etc, as you may now be on a different outlink carrier or have different hub configuration feeding out to the new type modem.

Tell the hub all about your situation and ask for help. They can check your terminal, verify traffic routings and help with speed tests.

Best regards, Eric.