I previously had a DLink modem-router (DSL-2740B). I replaced it with a small ADSL D-Link modem and a TimeCapsule.
While I'm quite happy with it, the main and only criticism I could make is the loss I had in the Wifi coverage in my apartment.
When I had an almost full signal in my bedroom with the DLink, I can now barely connect.
I know that an Airport Extreme Base Station would be an option to extend the network but the distance from the TimeCapsule to the bedroom seems quite "normal" to me so that a single wifi emitter would be enough as it was before.
I plan anyway to put in my bedroom an Airport Extreme Base station to dispatch my music collection on my hifi system, but I'm afraid it wouldn't even reach the network.
Are there any tips and tricks?
In Airport Utility, the Transmit Power is already at 100%.
Are there any other parameters to check/tweak?
Here is the screenshot of iStumbler. My network is highlighted.