Archive for March, 2012

Handheld CATV/QAM Analyzer Features Fast Spectrum Analysis

Wednesday, March 28th, 2012

Toronto, Canada – GAO Instruments has launched its handheld CATV/QAM analyzer which is intended for both analog and digital TV signal analysis. It conducts analog TV index measurement including C/N, V/A, Tilt, Limit and trunk voltage. Digital TV index measurement includes channel power, MER (modulation error ratio), BER (bit error rate) and constellation diagrams for 16/ 32/ 64/ 128/ 256QAM/ ITU-TJ.83 Annex A/B/C modulation types.

This portable CATV/QAM analyzer, model A0N00014, operates at a frequency range of 5 to 1000 MHz. It offers a fast spectrum analysis function, CM statistic function, Ping function and bandwidth testing function. It also features auto/limit test function and channel and spectrum scanning.

The compact analyzer runs under Linux operating system and has a built-in Web browser. It communicates with a computer via a USB port for simple data communications and storage. Its cable modem testing mode is compatible with DOCSIS 1.X, 2.0 and 3.0. It is powered by a 4.8 V 2.1 Ah rechargeable battery providing more than 6 hours continuous operation when fully charged.

This handheld CATV/QAM analyzer belongs to GAO’s family of CATV Meter & Instrument. This line of products includes Digital Signal Level Meter which is specially designed for use in the maintenance of digital, analog, FM or bilateral networks, TDR Cable Fault Locator which automatically locates and indicates the distance to many kinds of RF cable faults such as short circuits, open circuits or high resistance points, and Portable PCM Channel Analyzer which is widely used to measure PCM devices, digital switches, carrier wave communication devices and VoIP devices.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaoinstruments.com

Portable xDSL Tester Features DSL Line Self-Identification Connection

Tuesday, March 20th, 2012

Toronto, Canada – GAO Instruments is offering this portable xDSL tester for various xDSL line testing including ADSL, ADSL2, ADSL2+, READSL, and VDSL2. It tests xDSL physical layer parameters and confirms whether a line is suitable for xDSL service.

This portable xDSL tester, model A0010005, operates under Windows CE operating system. It provides xDSL tests such as physical layer tests, modem parameter setting tests, PPPOE properties, PPPOE dial-up, network layer tests and loop back test. It also performs LAN tests including net-card property, PPPOE dial, Web browsing, fixative IP scanning, FTP Client and Web page speed test and DMM tests including loop resistance, capacitance, insulation resistance and voltage. The XDSL tester emulates a PC+ Modem in order to test the connection to the ISP.

This portable tester provides a maximum test distance of up to 6.5 km and features DSL line self-identification connection. It has a large memory capacity of 20 M to save ADSL test records and other data which is transferable through the USB port and LAN. Its embedded software can be upgraded to the latest version. A TFT true color LCD with a touch screen allows for convenient operation and clear display of test results.

This portable xDSL tester belongs to GAO’s family of ADSL testers. This line includes a wide variety of testers. Featured products in this line include Multi-function Handheld xDSL Tester which is designed to test and analyze VDSL2, ADSL, ADSL2 and ADSL2+ networks, Portable ADSL2+ Tester which provides such test functions as upstream and downstream rate measurements, error counts, modem simulation, PING and Trace testing, and Multi-function ADSL/ADSL2+ Tester which provides a test solution for ADSL, ADSL2, ADSL2+, and RE-ADSL installation, maintenance and measurement.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaoinstruments.com

Multiple Testing Tasks Can Be Accomplished with This E1/Ethernet Tester

Tuesday, March 13th, 2012

Toronto, Canada – GAO Instruments is offering its integrated E1/Ethernet tester, which is a comprehensive test tool for E1, V port and Gigabit Ethernet link maintenance and failure diagnosis. It conducts 50 b/s to 2048 kb/s error testing over multiple V ports and can be used for 10/100/1000M Ethernet cable tests, flux error code tests, connectivity performance tests, RFC2544 performance tests, and traffic testing.

This easy-to-operate E1/Ethernet tester, model A0050004, has PPPoE, FTP download, terminal emulation and Web browsing functions. It also provides a large number of Ethernet diagnostic tools including PING, router trace, a port location tool and a loop-back tool, thus it can meet most cases of Ethernet wiring tests and bandwidth verification.

This portable E1/Ethernet tester allows both on-line tests and off-line loopback and end-to-end tests. It tests throughput, latency, package loss rate and back to back buffer frames and checks network performance indexes. Statistics for Tx/Rx frames, utilization rate, error frame, different length frame, VLAN frame, suspension frame, broadcast frame are available. The E1/Ethernet tester features efficient data management and allows for simple copy, check, deletion and exporting of tested data. It integrates V series data interfaces and RS232 interfaces for data exchange. The E1/Ethernet tester boasts a large 2G data storage SD card, a rugged dustproof design and a color HD touch screen.

This E1/Ethernet tester belongs to GAO’s family of E1 Service Testers. The family also includes E1/Datacom Transmission Analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks, PCM Channel Analyzer which integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaoinstruments.com

Double Clamp Earth Resistance Tester Provides a Self-Check Function and Automatic Frequency Control Function

Tuesday, March 6th, 2012

Toronto, Canada – GAO Instruments is offering its double clamp earth resistance tester which is commonly used in the testing of soil resistivity and leakage current of grounding systems under different conditions. The earth resistance tester integrates a voltage-inducing transformer and a current-sensing transformer to check ground resistance of transformers, anti-lightning systems, high voltage power towers and communication equipment.

This easy-to-use earth resistance tester, model A0E10002, provides a self-check function and automatic frequency control (AFC) function which minimizes interference. It performs on-line measurement, serial testing, and tests the RMS of leakage current and the soil resistivity with high accuracy. The earth resistance tester allows an earth resistance range from 0 to 19.99 kΩ and a leakage current measurement range of 0.0 to 19.9 A. It has a memory capacity of 250 groups and communicates with a computer for data uploading. It is powered by 6 V DC, 4 × 1.5 V AA alkaline dry battery or 4.8 V DC, 4 × 1.2 V AA Ni-MH rechargeable battery.

This intelligent double clamp earth resistance tester belongs to GAO’s family of Earth Ground Testers. The similar product in the line is Single Clamp Earth Tester which goes beyond the limitations of traditional methods of earth resistance testing as it does not require the disconnection of the ground wire. This line of products also includes Handheld Earth Ground Tester and Portable DC Ground Fault Locator which are widely used in detecting reliable ground connections and measuring earth ground resistance.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaoinstruments.com