Rohde & Schwarz SMBV100A - Page 215

Instrument Function
R&S
®
SMBV100A
200Operating Manual 1176.8016.02 ─ 17
Max Received Blocks
Enter the number of transmitted data blocks to be checked before the measurement is
terminated.
This criterion will terminate the BLER measurement after the specified number of data
blocks, even if only a few errors or none at all have been detected. With a low number
of block errors, the measurement result can be statistically unreliable.
If the measurement is terminated because the number of data blocks entered here was
checked, "Number of Data Blocks" appears to the right of "Terminated By".
Remote command:
:BLER:SETup:MCOunt on page 540
Max Errors
Enter the number of block errors to occur before the measurement is terminated.
This criterion terminates the measurement relatively quickly if the error rate is high.
The measurement result is statistically reliable, since many errors were already coun-
ted.
If the measurement is terminated because the number of block errors entered here
was reached, "Number of Errors" appears to the right of "Terminated By".
Remote command:
:BLER:SETup:MERRor on page 540
BLER Type
Displays the CRC polynomial used. CCITT CRC 16 : G(x) = x
16
+ x
12
+ x
5
+ x
1
is the
CRC polynomial supported.
Remote command:
:BLER:SETup:TYPE on page 541
CRC Order
Selects the byte order of the checksum (CRC).
"LSB"
The checksum starts with the least significant byte.
"MSB"
The checksum starts with the most significant byte.
Remote command:
:BLER:SETup:CORDer on page 537
Data Polarity
Sets the polarity of the feedback data blocks.
Remote command:
:BLER:SETup:DATA[:POLarity] on page 538
Clock Slope
Sets the polarity of the active slope of the feedback clock.
Remote command:
:BLER:SETup:CLOCk[:POLarity] on page 537
Bit and Block Error Rate Measurements