AN/APX-123 Navy Transponder (all platforms)
U.S. Department of Defense, Office of the Director, Operational Test &amp; Evaluation
2012
<a rel="nofollow" class="external text" href="http://www.dote.osd.mil/pub/reports/FY2012/pdf/navy/2012mkxiiaiffmode5.pdf">Mark XIIA Identification Friend or Foe (IFF) Mode 5</a>, Page 171