Sitting on the ground at KDEN last night (VATSIM -- FSInn), I could see a few traffic diamonds on EFIS MAP. Later in the flight at 36,000 cruise altitude, I had oncoming traffic pass directly above me +1,000 feet above (and not more than 3 nm lateral), but I never saw it on the EFIS MAP. I did see it coming from over 30 miles away on the FSInn radar and I got a visual up close. I am sure I had the transponder to TA/RA and also the traffic MCP button pressed (the blue TFC indicator and white ring dots were showing). I wonder why it never displayed on the MAP. I will have to try some more flights to see if I can replicate/solve.

Perhaps your TCAS filter settings in the CDU PMDG options area?

Thanks for the tip Scott. The ND Display Filter was set to FILTER, 40nm, 2800 separation. My altitude was 36,000. Traffic was 37,000. I think I should have seen them. I have changed it to SHOW ALL (for now).

Did the ND have traffic annunciated?

I'm experiencing same isse here, but instead using FSInn, i'm using IVAP 2 external. I've seen a traffic coming up close on same airway on oposite direction, about 1000ft below me, and the ND doesn't catch him. But i've followed him through the ivap radar all the way long, until he disappears at distance. I've tried the two differents configs "SHOW ALL" and "FILTER". DOESN'T WORK at all. PMDG, I (we) expect some response to this thread.

is the switch on the TCAS panel set to above, below or both?

is the switch on the TCAS panel set to above, below or both?

Excuse me, but i'm too blind or stupid to spot the above/below button. Show me, please

Excuse me, but i'm too blind or stupid to spot the above/below button. Show me, please

Ahhhhh woops. My mistake. hahaha I'm thinking of another aircraft :( silly me

Ahhhhh woops. My mistake. hahaha I'm thinking of another aircraft silly me

No problem

is the switch on the TCAS panel set to above, below or both?

747 ?? lol.

Yep 747, Airbus' hahaha forgot the NG didnt have that switch

I bumped my traffic level up a bit last night while flying KAUS to KGSB on a Air Hauler mission. I dodged (okay, not really, but watched them go by at 1-2k separation) probably 5 AI planes (labels disabled), TCAS/EFIS worked as advertised in all instances (TA/RA selected, TFC button selection on dash). Nothing special with regards to external traffic control.

Since my original post, I changed my filter to 9999 (the highest variation that will correctly display on the ND). It seems to be working fine. I will have to watch some online traffic more closely to be sure that FSX and FSInn are reporting the traffic altitude correctly. Then I can dial down the altitude filter again.