UMTS / GSM Tester
Precision Test Systems manufacture a range of items that can be used in UMTS and or GSM propagation testing. These products have been designed against customers requirements.
The range consists of signal generators, power amplifiers and field strength meters.
This allows a high power signal to be generated to a test antenna. The field strength meter is then carried around the site area and the signal level can be measured and recorded.
Thus these instruments allow complete propagation testing.
FSG Units (Field Signal Generators)
The FSG (field signal generator) series are handheld, portable signal generators especially designed to cover the UMTS and GSM frequency bands. Each unit generates a CW signal. The units are synthesized and the frequency is simply entered into the keyboard. The amplitude can be altered from +20 dBm to -20 dBm in 1 dB steps (100 mW 10 μW).
The FSG960B covers 890 MHz to 960 MHz and can be set in 100 kHz increments.
The FSG2170 covers 1710 MHz to 2170 MHz and can be set in 100 kHz increments.
Both unit are light weight, handheld, portable units operating from rechargeable batteries. A LCD display shows the current frequency / output level setting.
PA Units (Power Amplifiers)
To increase the output of the FSG units, two power amplifiers are available. When used with the FSG series, the power amplifier will generate a CW signal from 2 mW to 20W. The power amplifier has a levelled output and is controlled by the FSG unit with automatic gain control.
The PA960B covers 890 MHz to 960 MHz and the PA2170 covers 1710 MHz to 2170 MHz.
FSM Units (Field Strength Meters)
Various field strength meters are available including the FSM series and 3201 / 3290 series.
The FSM series are small handheld portable units that measure the signal strength appearing at the units input socket. Levels from +20 dBm to -110 dBm can be measured to an accuracy of 3 dB. They are narrow band units that only measure one channel frequency at a time. The frequency of interest is entered into the unit and the synthesiser sets the field strength meter to that frequency. The FSM units measure CW or AM signals and will also capture GSM signals using the "peak capture" mode.
The FSM960B covers 890 MHz to 960 MHz and the FSM2170 covers 1710 MHz to 2170 MHz.
UMTS / GSM Tester