E1 Bit Error Rate
E1 Bit Error Rate

GAO Tek Handheld E1 Bit Error Rate (BER) Tester

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Product Description


This E1 BER (Bit Error Rate) tester is a compact, multi-functional, handheld E1 line test instrument, specially designed for R&D, production, installation and maintenance of SDH, PDH, PCM, and DATA protocol conversion. It features self-check and keyboard testing, extensive error and alarm generation, detection and indication. This tester provides smart menu navigation and has a large color LCD screen allowing test results to be displayed clearly. Test results can be downloaded or printed via included software. It is an ideal device for fast problem resolution, E1 PCM line access, maintenance and acceptance testing.

Additional Options*

  • In-service framed and unframed testing
  • Hi-Z and through mode testing
  • CODE, FAS, CRC4, E-BIT BER testing
  • Frame data and timeslot activity monitoring
  • CAS and CCS signaling monitoring

*options are available at an additional cost and not included in the base price

Key Features

  • Easy-to-use, handheld design
  • Full-featured measurements of E1, Datacom and Protocol Converter
  • High resolution backlight LCD
  • Smart menu navigation
  • Extensive error and alarm generation, detection and indication
  • Histogram analysis of alarm and error events
  • Save/Recall of up to 10 user-defined setups and 10 sets of results
  • More than 6 hours operation with a single battery charge
  • Built-in Ni-MH rechargeable batteries and smart charger circuitry (automobile adaptor included)
  • Upgradable embedded software via an integrated RS232C interface
  • Test results could be uploaded and analyzed with software provided

Basic Functions

  • 120 Ω and 75 Ω line interfaces
  • HDB3 and AMI line codes
  • Out-of-service framed and unframed testing
  • 2 Mb/s, N×64 Kb/s BER testing
  • Frame data and alarm monitoring
  • Clock slip measurement
  • Frequency and level measurement
  • Testing pattern: PRBS, Fix Code, 16-BIT User Word
  • Error injection: Single and Fixed Rate
  • Real-time transmit circuit open/short indication
  • Manual and auto-timer measurement
  • ITU-T G.821, G.826, and M.2100 performance analysis

Technical Specifications

Internal Clock 2048 kb/s ± 10 ppm
Line Interfaces 75 Ω (Unbalanced), 120 Ω (Balanced); *High Input Impedance >2 KΩ
Line Code HDB3, AMI
Framing Unframed, PCM30, PCM30CRC, PCM31, PCM31CRC
Level Measurement -43 dB to -2.5 dB
Tx Clock Source Internal, Interface
Frequency Measurement Accuracy: ± 1 Hz
Offset Measuremen Accuracy: ± 1 ppm; Range: -999 ppm to 999 ppm
Test Patterns PRBS: 223 -1, 215 -1, 211 -1, 29 -1 Fixed Code: 1111, 0000, 1010
16BIT: Fully programmable 16-bit word
Alarm Indications Signal Loss, AIS, Frame Loss, MFrame loss, Pattern Loss, Remote Alarm, Errors, Low Battery
Error Injection Type: BIT, FAS, CODE, CRC4, E-BIT Single, OFF, Fixed Rate: 10-2 , 10-3 , 10– 4 , 10-5 , 10-6 , 10-7
Performance Analysis ITU -T G.821, G.826 and M.2100
Rechargeable Batteries 7.4 V Li battery, continuous working for 8 hours
Recharge Time Approx. 2 hours
AC Power Adapter Input: 100 V to 240 VAC, 50/60 Hz; Output: 12 VDC /1.5 A
Dimensions 230 mm × 72/11 mm × 33 mm
Weight Approx. 500 g


Packing List


Item Qty Item Qty
E1 BER Tester 1 Embedded Software 1
AC Power Adaptor 1 Software CD 1
Automobile Battery Adaptor cable 1 Waterproof Package 1
75 Ω Unbalanced Test Cable 2 User Manual 1
120 ohm Balanced Test Cable 1 Quality Certificate Card 1
USB Cable 1 Maintenance Card 1
Rechargeable NiMH Battery 1 Packing List 1

Product Brochure

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Additional Information

Weight 1.1 lbs


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