a0050005
a0050005

GAO Tek Portable PCM Channel Analyzer

ID: A0050005tek
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Product Description

Overview

This portable PCM channel analyzer is specially designed for testing signal level, frequency gain, level gain, quantizing distortion, idle channel noise, crosstalk, return loss and longitudinal balance loss. It provides both fully automatic testing and manual testing modes. The PCM channel analyzer features multi-task operation and users can test and browse previous test records simultaneously. It offers graphic display of test results and has a memory capacity of over 60 groups of measurement results. Measurement results can be uploaded to a PC for analyzing, filing and printing. This high performance PCM channel analyzer is particularly suitable for production and engineering installation, acceptance and maintenance and scientific research.

Key Features

  • Built-in DC loop feeding circuit and DC loop holding circuit
  • Portable
  • Large-screen LCD, 320×240 lattice, LED backlight
  • Mini printer and external printer interface

Functions

  • Multi-task operation(test and browse previous records simultaneously)
  • Tests signal level, frequency gain, level gain, quantizing distortion, idle channel noise, crosstalk, return loss and longitudinal balance loss
  • End to end and loop-back testing
  • Single-channel or 30-channel automatic testing
  • Fully automatic mode, manual mode
  • 60 groups of measure results can be saved
  • Built-in generator and receiver
  • Direct current loop feeding circuit and direct current loop holding circuit
  • Measure E&M 2/4-wire interface and LGE, FXO, LGS, FXS interfaces
  • Test result graphically displayed and compared to ITU-T specifications.

Technical Specifications

Generator
Signal frequency 100Hz to 4000Hz, step:10Hz
Output level +6 to-61dBm0, step:1dB
Relative level +1 to-17dB, step:0.1dB
Distortion degree 1020Hz/0dBm0, ≥50dB
Frequency response ±0.1dB
Output impedance and return loss 600Ωwithin 200 to 3600Hz, return loss ≥36dB
Output balance degree ≥60dB within 200 to 3600Hz
Receiver
Frequency 200Hz to 3600Hz
Level Level range +13dB to -78dB, dBm0:+6 to – 61dB, dBr:+7 to -17dB
Measurement error 0dBm0 is ±0.2dB, others are ±0.3dB
Frequency gain Reference signal 1020Hz to 10dBm0
Reference signal 1020Hz to 10dBm0
Frequency range 200Hz to 3600Hz
Measurement range -60dB to +60dB
Level gain Measurement error ±0.2dB
Reference signal 1020Hz to10dBm0
Level range +5dBm0 to -60dBm0
Measurement range -60dB to +60dB
Idle channel noise Measurement error ±0.2dB
Assistant signal closed
Measurement range -90dBm0p to +5dB0p, ITU-T weighted
Measurement error -90 to-75dBm0p:±2.5dB
-75 to -70dB0p:±1.5dB
-70 to +5dBm0p:±1dB
Crosstalk Disturbing signal 1020Hz/0dBm0
Measurement range -90dBm0p to +5dBm0
Error range ±1dB
Quantizing distortion Reference frequency 820Hz
Level range +5dBm0 to -60dBm0
Measurement range 0 to 60dB, ITU-T weighted
Measurement error ±0.8dB
Return loss Signal frequency range 200Hz to 3600Hz,
level:0dBm0
Measurement range 0dB to 62dB
Measurement error ±1dB
Longitudinal balance loss Signal frequency range 200Hz to 3600Hz, level:0dBm0
Measurement range 0dB to 82dB
Measurement error ±1dB
Input impedance and return loss Input impedance is 600Ω within 200 to 3600Hz, and return loss≥36dB
Input balance degree ≥60dB within 200 to 3600Hz
Interface balance 600Ω, 200Ω+560Ω∥0.1UF;
200Ω+680Ω∥0.1UF
Relative level -17 to +7dB, step:0.1dB
Direct current loop IGT dynamic impedance>100KΩ, maximum loop current is 60mA, and loop voltage drop is -15V;
OGT dynamic impedance>100KΩ, and constant current of feeding circuit is 22mA
Power supply
Printer
(1)With special power adapter
Input:AC220V 50Hz Output: DC 9V1A
(2)Internal rechargeable battery 4000mAh 6V Ni-MH rechargeable battery
Operating time: 6 hours
Charge:8 hours
mini-printer(optional)
Dimension L×W×H: 220×162×48mm
Weight 1kg
Operating temperature 0 to 40ºC
Storage temperature – 20 ºC to +70ºC
Humidity 5% to 90% non-condensing

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