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Sub-1 GHz RF Spectrum Analyzer Tool



Hardware Specifications
  • Based on the sub-1GHz CC430 MCU
  • CC430/MSP-SA430-SUB1GHZ Supported Frequency Ranges:
    • 300 – 348 MHz
    • 389 – 464 MHz
    • 779 – 928 MHz
  • Minimal Frequency Step: 397 Hz typ.
  • Maximum input level: -40 dBm typ (range extendable with attenuators)
  • Minimum detectable level: -100 dBm typ.
  • Level Resolution: 0.5 dB

GUI Features
  • Open source QT-based Graphical User Interface (GUI)
  • Flexible GUI allows developers to set desired frequency range and amplitude to measure
  • Configurable to show continuous sweep readings or single snapshots
  • Up to 4 traces can be visualized on the GUI, which can be configured to show maximum, average or actual readings.
  • Markers are available for easy measurement readings. These markers can be controlled manually using a jog wheel, or dynamic based on auto peak detection
  • The GUI view can be configured to show grids, customizable labels, inverted colors and other options
  • Screenshot capability is available to record readings as .pdf or .png file types.
  • Traces can be exported as comma separated file
  • Configuration settings for the GUI can be saved and loaded for future measurements

Texas Instruments  MSP-SA430-SUB1GHZ

The MSP-SA430-SUB1GHZ Spectrum Analyzer is CC430-based reference design that can be used to implement an easy and affordable tool to jumpstart RF development in the sub GHz frequency range. More and more electronic devices include a built-in RF link. RF transceivers are inexpensive - but the equipment to design and debug such systems is not. The CC430-based spectrum analyzer provides an affordable development tool that reduces the time needed on expensive measurement equipment. The system is recognized as a USB device and is operated from a powerful yet simple graphical user interface that is available for free to download.

The CC430 microcontroller that the SA430 is based on is a highly integrated system-on-chip featuring an on-board sub-GHz radio chip based on the CC1101.

System Requirements
  • Screen: Minimum 800x600, better 1024 x 768
  • Supported OS: Windows® XP 32 bit, Windows® Vista 32/64 bit, Windows® 7 32/64 bit
  • Memory: 200 MB free HDD
  • Connection: One USB 2.0 port