Intorduction

The GC7105A is a Base Station Analyzer for installation and maintenance of modern wireless communication systems. It combines the functionality of spectrum analysis, cable and antenna analysis, power meter, and modulation analysis, including: CDMA2000, EVDO, GSM, GPRS, EDGE, WCDMA, HSDPA, TD-SCDMA.

The GC7105A has been designed with a wide bandwidth analysis capability, ensuring the compatibility with future wideband technologies such as Mobile WiMAX and LTE.

Key Measurements

• Spectrum Analyzer

• Transmission Analyzer

• Interference Analyzer

• Antenna & Cable Analyzer

• Power Measurement

• E1/T1 Analyzer

• Over the Air Measurements

• Auto-measurement function, for quick and easy configurations and measurements.

Spectrum Analyzer

The Base Station Analyzer has a general purposed spectrum analyzer which is the most flexible test tool for RF analysis. Beyond this basic spectrum analysis functionality, a built in RF measurement application provides a single button RF power measurements including:

• Channel Power

• Adjacent Channel Power

• Spectrum Emission Mask

• Occupied Bandwidth

Interference Analyzer

The Base Station Analyzer has an interference analyzer which is the most effective way to identify periodic or intermittent interference.

A spectrogram display allows the user to capture spectrum activity while displaying frequency, power and time information.

The signal tracking capability is particularly useful for observing signal strength at a single frequency over time with an audible indication.

Transmission Analyzer

The modulation measurement suite of the Base Station Analyzer provides not only RF parametric analysis but also modulation parametric analysis for modern wireless communication systems. Built-in wireless standard test procedures allow users to test each of the following items with a single button action.

• CDMA2000, EVDO

• GSM, GPRS, EDGE

• WCDMA, HSDPA

• TD-SCDMA

• WiMAX-Mobile

• LTE

Cable and Antenna Analyzer

The Base Station Analyzer can perform also the function of an antenna and cable analyzer that measures cable loss, distance to fault (DTF) and voltage standing wave ratio (VSWR).

The antenna and cable analysis functionality can characterize active and passive devices such as cables, filters, amplifiers, antennas and multiplexers. It also performs gain measurements, insertion loss, and isolation; particularly useful for filters, amplifiers, Tower Mounted Amplifiers (TMA), RF path gain, and antenna isolation.

Over The Air Measurements

The Base Station Analyzer provides over the air measurements for a quick performance characterization of the base station. This function is especially useful in testing cell sites which are not easily accessible.

Over the air measurements also perform multipath signal profiles which identify the presence of signal reflections

Channel Scanner

The Base Station Analyzer has the function of measuring multiple transmitted signals. The channel scanner can measure up to 20 channels in GSM, CDMA or WCDMA networks.

Using existing format-based or custom parameters, the user will be able to easily verify improper multi-channel power levels.

Power Meter

The Base Station Analyzer can perform two power testing methodologies:

• Internal, for standard power measurements without the assistance of external power sensors.

• External, for high accuracy power measurements with the assistance of external power sensors.

The internal power meter, with no additional power sensors, uses the spectrum analyzer functionality. It is a simple test methodology with reasonable accuracy. On the other hand, external power sensors perform power measurements more accurately. The Base Station Analyzer can be equipped with a Directional Power Sensor (through-line) which has the advantage to minimize service disruption and covers an ultra-wide power range.

E1 & T1 Analyzer

The Base Station Analyzer also provides a testing solution for E1/T1 transmission lines. Various test modes are available including:

• Mode: Terminated, Monitor, Bridge, Loop

• Frame: PCM30, PCM31, Unframed

• Code: AMI, HDB3, B8ZS

• TX Pattern: 1-8, 1-16, ALL0, ALL1, 0101, 2E20

• E1/T1 Pulse Mask

• Alarm, Error Count and Logging