Gencomm GC747A Spectrum Analyzer

Gencomm GC747A Spectrum Analyzer

The GenComm GC747A is a versatile RF and LTE analyzer designed primarily for field testing, making it a great choice for installation and maintenance of cellular base stations. It integrates several key functionalities, including a spectrum analyzer, cable and antenna analyzer, and power meter, covering the full range of measurements needed for testing and troubleshooting the physical layer of cellular networks.

The GC747A features a frequency range for its spectrum analyzer from 100 kHz to 4 GHz with a resolution bandwidth from 1 Hz to 3 MHz. It supports additional functionalities such as interference analysis, power measurements, and includes a built-in preamplifier to detect low-level signals as weak as –155 dBm. This makes it especially useful for pinpointing interference in wireless communications. Its compact and rugged design is tailored for field use, offering a 3-hour battery life with an option for extended operation. Additionally, it features a bright 8-inch color display that is visible in both daylight and dark environments​

Some notable measurement capabilities of the GC747A include:

• Spectrum analysis with common metrics like channel power, adjacent channel power ratio, and spurious emissions.
• Cable and antenna analysis for testing parameters such as VSWR, return loss, and distance to fault (DTF).
• LTE-FDD signal analysis and built-in signal generation (optional).
• Portable and easy-to-use interface with options to save and transfer data

Spectrum Analyzer:

• Frequency Range: 100 kHz to 4 GHz
• Resolution Bandwidth (RBW): 1 Hz to 3 MHz
• Maximum Input Level: +20 dBm
• Single Sideband (SSB) Phase Noise (RBW 10 kHz, VBW 1 kHz):
  • Carrier Offset:
    • 30 kHz: < -90 dBc/Hz
    • 100 kHz: < -95 dBc/Hz
    • 1 MHz: < -102 dBc/Hz

Cable and Antenna Analyzer:

• Frequency Range: 5 MHz to 4 GHz
• Measurement Functions:
  • VSWR (Voltage Standing Wave Ratio)
  • Return Loss
  • Distance to Fault (DTF)
  • Cable Loss (single port)
  • 1 Port Phase
  • Smith Chart

Power Meter:

• Frequency Range: 10 MHz to 4 GHz
• Measurement Dynamic Range: -120 dBm to +20 dBm
• Measurement Types: Peak, RMS

Additional Features:

• Signal Generator (Optional):
  • Frequency Range: 25 MHz to 4 GHz
  • Output Level: 0 dBm, adjustable from -30 to -80 dBm
• Interference Analysis: Spectrogram, Signal Strength Meter, and Signal ID capability
• Portable with Field-Use Design:
  • Battery Life: 3 hours, extendable with a secondary battery
  • Operating Temperature: –10°C to 55°C
  • MIL-PRF-28800F Class 2 enclosure protection for rugged use

SPECIFICATION : 

-LTE Analyzer(LTE-FDD Signal Analyzer)

-Spectrum Analyzer

-Cable & Antenna Analyzer

-Signal Generator

-Power Meter

-Interference Analyzer

Spectrum Analyzer : 

Frequency Range: 100kHz to 4GHz

Resolution Bandwidth (RBW): 1Hz to 3MHz

Single Sideband (SSB) Phase Noise:

(RBW 10 kHz, VBW 1 kHz, RMS Detector)

Carrier Offset :

30 kHz < -90 dBc/Hz

100 kHz < -95 dBc/Hz

1 MHz < -102 dBc/Hz

Maximum Input Level: +20 dBm

Signal Generator : 

Frequency Range: 25MHz to 4GHz

Output Level : 0dBm, -30dBm to -80dBm

Cable & Antenna Analyzer : 

Reflection(VSWR)

Reflection(Renturn Loss)

DTF(VSWR)

DTF(Rnturn Loss)

2 Port Measurements

Cable Loss(1 Port)

1 Port Phase

Smith Chart