Download libtrf 1.7.1 release package

View release notes in PDF


Important Note: If your RTSA has firmware v1.7.0/1.7.1 for R55x0 or v1.2.0/1.2.1 for R57x0, it is critical that you should update it to the latest to use libtrf’s spectrum capture in v1.5.4 or higher. 


Enhancements

The following other change(s) were made:

  1. Updated the Reference Manual

    1. with better “Streams” usage and documentation, including more explanation on “‘IQ Streaming”, “R5xx0 IQ Streaming near 50MHz”, R55x0/R57x0’s Bit-width and its Digital Gain, and “Baseband Streams”.

    2. with additional info on “Memory considerations”.

    3. on usage with TRFDiscardProportion to avoid discontinuity at the start of IQ streaming capture.

    4. with changes regarding R6000’s information.

  2. Improved error messages to provide better understanding of the error.

Fixed Defects

The following issue(s) are fixed in:

  1. Fixed a rare segfault instant during Finite IQ Capture.

  2. Fixec a rare discontinuity for IQ streaming in relating to TRFDiscardProportion flag.

  3. Addressed some instance of capture failure with R6000, due to initialization and unintended device’s reset.

  4. Fixed FFT scaling for ARM arch64 which resulted in incorrect power level.

  5. Fixed a race condition on Spectrum Stream’s shutdown.

  6. Correct a minor issue with capture frame.

  7. Fixed BasebandFileExample issue.

  8. Addressed GNSS position data occasionally stuck.

Known Issues and Limitations

The following are the known limitations or other issues present since libtrf version 1.4.0:

  1. Limitation: R55x0/R57x0 products only - Between 30MHz and 50MHz centre frequencies, it is not possible to stream a full 40MHz IFBW as IQ data. This is due to the switching of the RTSA hardware technology types at the 50MHz point, between DD (Direct Digitizer) and SH (Super-Heterodyne) modes.

    This issue does not impact sweep spectrum data at that frequency range.

  1. For IQ sampling with center frequency below 50MHz and IFBWs lower than 20MHz, the IQ stream will run for a maximum of around 500msec. This is due to the inherent limitations of the direct-sampling range on R5xx0 receivers.

  2. Below 50MHz frequency range, IFBW below 1MHz exhibits sinc-type spectral distortion. This is a libtrf’s constraint, not an RTSA hardware issue.