Who knows about WLAN connections / speeds ?

[Externet]

Hi.

The modest WLAN internet connection am using shows in its utility screen, a real time graph of connection speeds for Rx and Tx.

Shows link quality of around 90%; signal strengh of around 52%; average reception of 40Kbps with some bursts of 300 Kbps and beyond. It works up to its limitations.

When downloading a file, the Windows download monitor window shows an average of 10KB/s

From a transmitted Byte being 10 bits [8data bits + 1start bit + 1stop bit if no parity];
Is that 10KB/s actually 100Kb/s ?

B=Byte; b=bit

Miguel

[dyarker]

10 bits per byte is an okay ratio for WAGing. But not for the reason you think.

8 data + 1 start + 1 stop is for asyncronous through the serial port.

Networking is syncronous, 8 data + 0 start + 0 stop. What makes 10: 1 a good WAG for USEFUL data is overhead bytes in each packet. IP header with from and to IP numbers, MAC, etc. TCP header and CRC bytes.

If doing VoIP (like voice only Skype), you may want to use 11:1 because there are more packets with less data, but same overhead.

So, old dialup internet would have a bit rate to useful byte rate of 12:1 or 13:1 because you had start and stop bits plus IP and TCP overhead, plus a little PPP/SLIP overhead.

Cheers,