TCAS/Traffic Problem

[nbeauchamp]

Bit of a strange question but when I first started flying the 737-400 I was able to see a TCAS display (well it was a TCAS system displayed on the EHIS) I have recently noticed that this is no longer. Don’t see why these have disappeared, but can anyone tell me or tell me how to get them back displaying.

Thanks

[petermcleland]

You need to have the range set above a certain figure...might be 40 miles or over :-)