Networking :: iwconfig-anything here suggest why poor signal?



iwconfig-anything here suggest why poor signal?
I cant have my wireless n/w card more than 20cm from my router. here is my iwconfig result. can anybody see anything here,  signal level etc(dont really know what it all means!) , that would tell me ehy the poor signal. cheers

eth0      IEEE 802.11-DS  ESSID:"daniel"  Nickname:"Prism  I"
         Mode:Managed  Frequency:2.467GHz  Access Point: 00:17:9A:69:A8:A5  
         Bit Rate=11Mb/s   Tx-Power=15 dBm   Sensitivity:1/3  
         Retry min limit:8   RTS thr:off   Fragment thr:off
         Encryption key:off
         Power Management:off
         Link Quality:52/92  Signal level:-50 dBm  Noise level:-149 dBm
         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
         Tx excessive retries:0  Invalid misc:0   Missed beacon:0
Could be interfance from wireless telephone, neighbors wireless networks, or perhaps your wireless card going bad, autoneogation of signal speed, etc.

original here.