is there any GPS or radar system for fs2004 that you can actually see or detect an aircraft other than yours on it while flying?
You would be looking for a TCAS system. Check avsim for TCAS.
And there you have it....
If ever you decide to get the AI traffic addon 'Ultimate Traffic' there is one included. I highly recommend it.
Thnak you guys, i'll try them, i already tried the IVSI with TCAS II v7.0 as of may 2004 and it seems pretty good for me. i'm also looking for a radar gauge, any help will be highly appreciated. thanks again guys!