1) I often hear the word "music". Does it mean my wingman activated his jammer or does it mean the enemy is using a jammer against him?
2) In the real world my radar screen would show typical features when a jammer or chaff is used againest me. Do flight sims also show these features?

1. If your wingman is saying "Music On", it means that he has turned on his active jammers.

2. Most of the better sims will give some indication of this. In Falcon 4 SP3, IIRC there will be X's over the contacts using jamming. In LOMAC, it depends on your selected aircraft. Jane's F-18 has some indication as well, but I can't remember what.

These are the only recent sims on the market that I can think of right now. Hope this helps.

Deacon