[Discuss-gnuradio] pad source&&Wifi physical layer input/output

[zhangwen]

Hi,GR

I run Bloessl's "802.11 OFDM physical layer" GRC program.
The input and output block are "Pad source" block.
What is the funcion of "Pad source",how to use "Pad source"?
If I want to use "File source" block to be the data input and output,how can I connect "File source" with the system?


Best,
Regards

Owen Zhang