| Main | 
| Number 
 | Title | Status | Questions | 
| P.311-18 (09/2021) 
 | Acquisition, presentation and analysis of data in studies of radiowave propagation | In force (Main) 
 | N/A | 
| 
 | 
| Previous versions | 
| Number 
 | Title | Status | Questions | 
| P.311-14 (09/2013) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-15 (07/2015) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-8 (05/97) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-16 (09/2016) 
 | Acquisition, presentation and analysis of data in studies of radiowave propagation | Superseded 
 | N/A | 
| P.311-13 (10/2009) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-11 (04/2003) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-9 (10/99) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-10 (02/2001) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A | 
| P.311-12 (03/2005) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | 201/3 | 
| P.311-17 (12/2017) 
 | Acquisition, presentation and analysis of data in studies of radiowave propagation | Superseded 
 | N/A | 
| P.311-7 (08/94) 
 | Acquisition, presentation and analysis of data in studies of tropospheric propagation | Superseded 
 | N/A |