serial communication using RF module

Application for payload

I send data from PC to 1st arduino-->RF module to receive data from 2nd RF module --> arduino and display again in PC. the 2nd arduino can integrated if PC send command. but it can't work properly, only data not display in PC.

anyone know this why? I'm very glad if anyone can help to solve this problem...

What RF modules are you using? What code is on each Arduino?

What does "but it can't work properly, only data not display in PC." mean?