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GC725A Cable and Antenna Analyzer

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Introduction Many of modern wireless base stations are a complex system of multiple RF components such as Low Noise Amplifiers (LNA), duplexers and Tower Mounted amplifiers (TMA). The performance of those RF components affects cell site coverage and capacity. It is essential to have the right instrument to service and verify the proper functionality of those components. The GC725A has all of necessary measurements functions to perform RF component measurements including, gain, insertion loss, and isolation; as well as the verification of sector to sector isolation, TMA and duplexer antennas. In addition, the GC725A accurately characterizes the site’s antenna system including Voltage Standing Wave Ratio (VSWR), Distance to Fault (DTF), Cable Loss and Power Measurements. The GC725A is an easy to use field instrument equipped with a color touch screen display allowing simple and rapid measurement executions, and obtaining results clearly displayed. Its application software, GCViewer, provides user with the flexibility to compare and analyze measurements and create professional reports. The GC725A was designed for field testing operation and is equipped with a rechargeable field replaceable Lithium-Ion battery which enables continuous operation for more than three hours.

Key Measurements

VSWR (Return Loss) DTF (Distance to Fault) Cable Loss Insertion Loss (Two Ports) Insertion Gain Power meter RF Source

Features

Portable and lightweight instrument Handheld Operation Built-in Worldwide RF signal

standards and frequency bands 7 inch TFT color display (viewable in

daylight) External USB memory capability Superior immunity to RF

interferences Up to 1001 data points to locate long

distance problems Up to 6 trace markers Saves up to 20 user definable setups Saves up to 400 measurement traces Saves up to 100 measurement

screens Alphanumeric labeling through On-

Screen keyboard Automatic time stamps of saved data Rechargeable and field replaceable

lithium-ion battery Interface with application software,

GCViewer, for data management

GC725A Cable and Antenna Analyzer

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ArchitectureUpper View

Front View

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VSWR / Return Loss VSWR and Return Loss measurements provide the power transfer performance of cell sites obtaining signal reflection characteristics the cell site including cable, connectors and antenna systems.

Frequency range: 25 ~ 4000MHz Dynamic Range: 60 dB High resolution mode with 1001 data

points Built-in over 80 worldwide RF signal

standards Registers user definable RF bands into

a Custom band list Configurable alarm limit line

DTF (Distance to Fault) The DTF measurement function allows user to accurately identify faulty locations.

Frequency range: 25 ~ 4000MHz Distance: Up to 1250m (4125ft) Dynamic Range: 60 dB Built-in over 95 standard cable

characteristics Registers user definable cables into a

Custom cable list Configurable alarm limit line

Cable Loss (one port) One port cable loss measurement allows user to quantify signal loss in a cable or other device without connecting both ends of the cables or device to the instrument.

Frequency range: 25 ~ 4000MHz Dynamic Range: 0 ~ 30dB Configurable alarm limit line

Main Functions

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Insertion Gain / Loss (Two Ports) The Insertion Gain measurement simplifies the task of verifying amplifiers and system performance improving antenna isolation. Insertion Loss measurements accurately quantifies the amount of signal loss as it passes through a cable, attenuator or any other device under test

Frequency range: 25 ~ 4000MHz Dynamic Range: -90 ~ 50dB Configurable alarm limit line

Power Meter The Power Meter function performs power measurements with optional power sensors displaying results in dBm or Watts.

Plug and play external power sensors Lower/Upper limit can be set for

Pass/Fail indications Power Sensor types

Directional Power Sensor Terminating Power Sensor

Application Software The GC725A Application Software, GCViewer, provides all the necessary tools to operate the instrument more conveniently including:

Smith Chart conversion VSWR-DTF conversion Captures saved plots from the GC725A Registers or edits user definable RF

bands into a Custom bands list Registers or edits user definable cables

into a Custom cable list Edits measurement charts Configurable report template Exports data to other applications

Bias Tee (Option 001) The optional built-in Bias Tee supplies selectable voltage of 12V to 24V with 3V steps on the RF In port eliminating the need of an external power supply.

Main Functions

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General Directional power Sensors Max Input Power +25dBm GC731A Frequency Range 25 ~ 4000MHz Sensor Type Average and Peak Frequency Accuracy < ±75ppm Frequency Range 300 ~ 3800MHz Frequency Resolution 100KHz Resolution 0.01dB or 0.1xW Test Port Impedance 50Ω Measurement Range Test Port Type N, Females Average: 21.76 ~ 51.76dBm (0.15 ~ 150W) Trace Storage Up to 400 Peak: 36.02 ~ 56.02dBm (4 ~ 400W) Screen Storage Up to 100 Measurement Uncertainty ±7% of reading + 0.05W2 Setup Storage Up to 20 Input Return Loss 27 dB Min Data Points 126,251,501,1001 Directivity 27 dB Min Measurement Speed 1,1.3,2.5,5sec for each data points1 Connector Type N-Female on both ends Immunity to Interference On Frequency: +5dBm GC733A On Channel: +17dBm Senor Type Average and Peak Frequency Range 150 ~ 3500MHz VSWR Measurement Range Range 1 ~ 65 Average: 24dBm ~ 43dBm (0.25 ~ 20W) Resolution 0.01 Peak: 24dBm ~ 43dBm (0.25 ~ 20W) Measurement Uncertainty ±7% of reading + 0.05W2 Return Loss Input Return Loss 27 dB Min Range 0 ~ 60dB Directivity 27 dB Min Resolution 0.01 Connector Type N- Female on both ends DTF Terminating Power Sensors Vertical Range VSWR:1 ~ 65 GC732A Return Loss 0 ~ 60dB Sensor Type Average Horizontal Range 0 to (# of data points-1) x (resolution-1)/2 Frequency Range 20 ~ 3800MHz Horizontal Resolution (1.5x108)(Vp)/(Delta)(ZF) Measurement Range -30 ~ +20dBm (1uW ~ 100mW) Vp: cable’s relative propagation velocity Measurement Uncertainty ±7% of reading2 Delta[Hz] = Stop Freq – Start Freq Connector Type N-Male ZF(Zoom Factor) = Setup Dist./Max Dist. GC724-50551 Sensor Type Average Cable Loss (One Port) Frequency Range 40 ~ 3000MHz Range 0 ~ 30dB Measurement Range -30 ~ 0dBm (1uW ~ 1mW) Resolution 0.01dB Measurement Uncertainty ±10% of reading2 Connector Type N-Male Insertion Gain/Loss (Two Ports) GC724-50552

Sensor Type Peak Range 25~2500MHz : -90 ~ 50 dB 2500~4000MHz : -80 ~ 50 dB Frequency Range 40 ~ 4000MHz

Resolution 0.1 dB Measurement Range -40 ~ 0dBm (0.1uW ~ 1mW) Measurement Uncertainty ±10% of reading2 Signal Generator Connector Type N-Male Frequency 25 ~ 4000MHz Power Output (nominal) Selectable -30dBm or +6dBm Miscellaneous Bias Tee (Optional) Dimension 260 x 190 x 60 mm (10.2”x7.5”x2.4”) Voltage +12 ~ +24V (3V step) Weight < 2.1Kg (4.62lbs) Current 500mA steady state (850mA inrush) Battery Li-ion (>3hrs continuous operating) Operation Temperature -10 ~ 50 (14 ~ 122) RF Power Meter Storage Temperature -40 ~ 80 (-40 ~ 176) Display Range -99 ~ +99dBm Humidity 95% No Condensation Offset Range 0 ~ 60dB 1 Measurement speed provided at One-port measurements. 2 The specification provided at a temperature of 25 ± 10. *All Specifications apply when calibrated at 25 after 5 minute warm-up. **Specification and product description are subject to change without notice.

Specifications

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Basic Model

GC725A Cable and Antenna Analyzer (25 ~ 4000MHz) Optional

GC725A-001 Bias Tee Standard Accessories

GC723-50541 Soft Carrying Case GC724-50522 AC-DC Adapter G7105-50335 Cross LAN Cable (1.5m) GC724-50517 1GByte USB Memory GC724-50523 Automotive Cigarette Lighter/12V DC Adapter GC724-50321 Lithium-Ion Battery G7105-50316 Stylus Pen GC725-50561 User’s Manual and Application Software CD

Optional Accessories

GC725-50507 Dual Port Calibration Kit (N), 40dB 4GHz including: Open-Short-Load, 40dB, 4GHz Load, 40dB, 4GHz Two Adapters N(f) to N(f), DC to 4GHz, 50Ω Two RF Test Cables (1m), N(m) to N(m)

GC724-50531 RF Cable, 1.5m N(m)-N(f) GC724-50532 RF Cable, 3.0m N(m)-N(f) GC723-50542 Hard Carrying Case GC725-50562 GC725A User’s Manual- Printed Version G7100-50571 Adapter N(m) to DIN(f), DC to 4GHz, 50Ω G7100-50572 Adapter DIN(m) to DIN(m) , DC to 4GHz, 50Ω G7100-50573 Adapter N(m) to SMA(f) , DC to 18GHz, 50Ω G7100-50574 Adapter N(m) to BNC(f) , DC to 1.5GHz, 50Ω

Power Meter Accessories

GC731A Directional Power Sensor 300 ~ 3800MHz, Average 0.15 ~ 150W, Peak 4 ~ 400W

GC733A Directional Power Sensor 150 ~ 3500MHz, Average/Peak 0.25 ~ 20W

GC732A Terminating Average Power Sensor 20 ~ 3800MHz, -30 ~ +20dBm

GC724-50551 Terminating Average Power Sensor, 40 ~ 3000MHz, -30 ~ 0dBm GC724-50552 Terminating Peak Power Sensor, 40 ~ 4000MHz, -40 ~ 0dBm G7100-50581 Attenuator 40dB, 100W DC to 4GHz (Unidirectional)

Ordering Information

Copy RightGenComm. For the most recent specifications, visit www.gctm.net. Rev. B-1

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Corporate Office 14 Floor E&C Dream Tower VII, 60-44 Gasan-Dong, Kumchun-Gu, Seoul 153-803, Korea Tel: 82-2-6676-7070 Fax: 82-2-6676-7040 Web: www.gencomm.co.kr

Customer Support Tel: 82-2-6676-7090 Email: support@gencomm.co.kr Sales (Korea) Tel: 82-2-6676-7080 Email: sales@gencomm.co.kr

International Sales/Marketing Office 1190 Saratoga Ave, Suite 180 San Jose, CA 95129, USA Tel: 1-408-679-1002 Email: sales@gctm.net Web: www.gctm.net

GC725A Cable and Antenna Analyzer