f4exb/sdrangel v6.14.0

Noise figure measurement plugin

on GitHub

Noise figure measurement plugin

This is a nice contribution of Jon srcejon enriching the measurement features of SDRangel. This Rx channel plugin can be used to calculate the noise figure (NF) of a receiver (SDR as well as optionally one or more LNAs). It uses the Y-factor method and requires a calibrated noise source. Details can be found here

Other changes and fixes

• GLscope rework featuring a multiple I/Q stream input. Issues #898 and #872.
  • You can use ScopeVis::setNbStreams method to set the number of I/Q streams that the scope will accept. The default number is 1 as it effectively used to be. The ScopeVis::feed method has been modified to take a vector of begin iterators one for each stream instead of a single begin iterator.
  • The GLScopeSettings::TraceData structure has now a m_streamIndex attribute to specify to which I/Q stream the trace applies. Similarly GLScopeSettings::TriggerData has a m_streamIndex attribute to specify to which I/Q stream the trigger applies.
  • The ChannelAnalyzer plugin is adapted but not modified and has a new control for the trace or trigger stream index that therefore has a fixed value of 0. However in the GLScopeGUI these controls can be used to control to which I/Q stream the trace or trigger applies.
• ADS-B demod: Delete m_worker after removing sink from DSP. PR #916 Issue #915
• ADS-B demod: ADSBDemodWorker: check running state before actual start/stop
• GS232: SPID rotator fixes. PR #914