Not strictly. It’s possible to have “database contacts” in the HAD/ALIC that have never emitted during the sortie but still show up as a symbol on the scope. PPTs don’t generate an ALIC database entry (although it would be nice if they did). However if an emitting contact is detected in flight it does add a green non-emitting contact symbol. IRL flying around with the HTS is an effective form of SIGINT.
It appears that SA-2 appears HAD yellow at ~80nm range and the first time I get an “S” is about 40nm. It’s not common knowledge but SAMs have a search radar mode in BMS that doesn’t trigger the usual symbol. Most people leave “S” display disabled so the first hint on RWR would come ~33nm when I get the first sneaky pings from the “2” mode of the radar. I can’t conclude that the HTS is more sensitive just because it displays earlier. IRL the systems (HTS HARM and RWR) are supposed to network and share info. RWR might know about SA-2 at 70nm but choose not to display it because it’s not a threat at that range/ signal strength. RWR displays SA-5 warnings at much longer range. I should test to see if HTS knows about SA-5 (or -10 or -20) at a range significantly beyond the RWR.
SA-5 detected by HAD page >200nm. RWR displayed associated “S” (not five, that came much later) approx 188nm. So again HTS wins detection war and identifies despite the search mode (although RWR tone sounds like SA-5 despite showing “S”).