Atec Agilent-E4437B - Manual (Page 18)

Bit Error Rate (BER) analyzer
(Option UN7, ESG-DP and ESG-D series only)
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
GSM/EDGE base station
Bit Error Rate Test (BERT)
(ESG-D series only)
(Option 300 requires Option UN8 revision C or better.
Option UNA is highly recommended. The following are required:
GSM BTS test only
E4406A VSA-series transmitter tester with Options BAH (EDGE
measurement personality) and 300 Rev. A (321.4 MHz output).
GSM/EDGE BTS test
E4406A VSA-series transmitter tester with Option 202 (GSM
and EDGE measurement personality) and Option 300 Rev. B (321.4
MHz output). ESG firmware Option 202, EDGE personality, is also
required. To upgrade from Option 300 Rev. A to Option 300 Rev. B
requires new hardware.
See configuration guide for a bundled ordering convenience.
Test technique
RF loopback
Supported systems
GSM 400
GSM 850
GSM 900 (P-GSM)
DCS 1800
PCS 1900
E-GSM (extended)
Minimum power level –136 dBm (ESG minimum)
Maximum power level +13 dBm (ESG maximum)
Power level accuracy ±0.5 dB (23° ± 50 °C)
Relative power level 0 to ±130 dB relative to timeslot
under test. (Limited only by output
power range of the ESG. Based
on Option UNA specification.)
Timeslot under test
timeslots tested
0 to 7
A single timeslot is tested at one
time. (No frequency hopping.)
Encryption None
Measurement triggers Immediate, trigger key, bus,
external
Measurement indication Pass/fail
BCH sync BCH signal from the BTS is used
to determine TCH frame and
multiframe location.
Threshold Termination of measurement
when error count exceeds user
specified threshold.
GSM output data
Channel content Full-rate speech (FS)
Data PN9, PN15 coded as per ETSI
GSM, 05.03 version 3.6.1 (Oct 94).
Frame structure 26-frame TCH multiframe structure
as per ETSI GSM, 05.01 version
6.1.1 (1998-07).
Adjacent timeslots
Data
PN9, PN15 coded as per ETSI,
GSM, 05.03 version 3.6.1 (Oct 94).
Frame structure 26-frame TCH multiframe structure
as per ETSI GSM, 5.01 version
6.1.1 (1998-07).
18
1. Perch power level is 3 dB below DPCH power.
2. DPCCH power level is 6 dB below DPDCH power.