[SI-LIST] PRBS Data patterns

  • From: Bob Patel <whizplayer@xxxxxxxxx>
  • To: si_list <si-list@xxxxxxxxxxxxx>
  • Date: Wed, 5 Dec 2001 10:11:05 -0800 (PST)

Hi! I had a question regarding PRBS data patterns
being sent through a system. I am sending PRBS data at
a fixed frequency of 2.488GHz and varying the pattern
from 2^10-1 to 2^31-1 through a system and measuring
the received BER.
I see that when I use PRBS 2^31-1 I get BER of
2.88e-11 which is quite low but there and 0 BER when
using 2^23-1. Now, if I understand correctly PRBS
2^31-1 is just a longer string length then PRBS 2^23-1
and since the frequency of the data remains constant,
I don't see where the BER is coming from.
I would appreciate any help in this matter.
Thanks in advance
Bob Patel 

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