Atec Agilent-E4421B-24B-32B-33B-35B-36B - Manual (Page 19)

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Measurements
Results Class Ib bit-error ratio (RBER for
TCH/FS)
Class II bit-error ratio (RBER for
TCH/FS)
Frame erasure ratio (FER)
Downlink error frame count
Class Ib bit-error count
Class II bit-error count
Erased frame count
Total frame count
Maximum RBER 100%
Maximum FER 100%
Measurement modes
Static reference
Sensitivity test (BER%)
RBER at user-specified power
level measured. (This is the
complete conformance test as
defined in pri-ETS 300 609-1
(GSM 11.21) version 4.12.0
(Dec 98), section 7.3.4.
BER sensitivity search Automatically finds the input level
(sensitivity) that causes a user
specified RBER (normally 2%)
for class II bits.
Maximum frame count 6,000,000 speech frames
EDGE/EGPRS output data
Channel content Continuous PN9 or PN15
Sequence for raw BER
Continuous PN9 or PN15
Sequence on header and data
payload.
Data Fully coded MCS-5 and MCS-9;
channel coding provided on PN9
or PN15 for data payload. Coding
is done on frames 0 – 11, 13-24,
26-37, 39-50 on a 52 PDCH
multiframe. The selected signal
pattern is inserted continuously
across the full payload.
Frame structure 52-frame multiframe structure for
EDGE/EGPRS channel as per
ETSI GSM 05.01 release 99.
Frames 12, 25, 38 and 51 are
empty (no burst).
Adjacent timeslots
Data
Continuous uncoded PN9,
PN15 or coded MCS-5 or
MCS-9 with PN9 or PN15
sequence data payload.
Note: Maximum of 4 timeslots
can be turned on with EDGE/EGPRS
multiframe coded data.
Frame structure EDGE/EGPRS PDCH multiframe.
Repeating EDGE frame.
Measurements
Results Payload bit error count/rate for
raw BER.
Total burst count for raw BER.
Erased data block count/rate for
coded channel (MCS-5 or MCS-9).
Total data block count for coded
channel (MCS-5 or MCS-9).
Data block count which contains
residual bit errors and bit error
count.
Measurement modes
static reference
sensitivity test (BER%)
BER at user-specified power
level measured; based on bit
errors in total unencoded data.
Sensitivity search BER/BLER
Baseband BER (Bit Error Rate) tester
(Included with Option 300; cannot be ordered separately.)
Clock rate 100 Hz to 10 MHz
Supported data patterns
PN9 and PN15
Resolution
10 digits (6 digits for BER (exp))
Minimum synchronization length
2 Mbps mode 9 bits (PN9), 15 bits (PN15)
10 Mbps mode 43 bits (PN9), 48 bits (PN15)
Bit sequence length 100 bits to 4.294 Gbits after
synchronization
Features
2 Mbps mode 10 Mbps mode
Real-time display
Bit count X X
Error-bit-count X
Bit error rate
X
Pass/fail indication X X
Valid data and clock detection X X
Automatic re-synchronization X
Special pattern ignore
X