title: QRSS
text: # QRSS
  
  QRSS may refer to:
  
  * The Quintana Roo Speleological Survey, a project that supports safe exploration of the caves in Quintana Roo, Mexico
  * Quasi Random Signal Source, a test pattern of the bit error rate test (BERT) methods for digital communication circuits
  * QRSS (amateur radio), a very low speed transmission mode used by amateur radio operators
  * QRSs, the plural of QRS patterns in electrocardiograms
  