The WR-G33RSS module does not include any signal demodulation capability - its single purpose is to measure signal strength. The module can be easily controlled via a serial interface (RS-232 or USB), with minimum programming required. Full programming support, including source codes and demo programs, is provided as part of the package. The device can be operated easily under standard operating systems, as well as be incorporated into application-specific embedded systems.

Features

 Input frequency range 0.009 to 1800 MHz
 Signal strength measurement range -120 to -30 dBm
 Signal strength measurement accuracy 3 dB
 Switchable attenuator and preamplifier
 Measurement bandwidth 10 kHz
 High frequency stability 0.5 ppm
 Simple RS-232 or USB interfacing
 Analog IF output
 Source code and demo program supplied

The module is based on a double-conversion process, where the incoming frequency is down-converted to the output frequency 12 kHz. This IF output is also available as a standard feature of this device. Careful design ensures that images and spurious mixing products are significantly reduced. Tracking filters are employed in the front-end, and the module features impressive spurious-free dynamic range.

The system is robust and compact, and is powered from 12 V DC power supply (AC/DC adapter supplied), and consumes approx 6 W of power, with externally controlled power-saving mode provided.