ITU

التزام بتوصيل العالم

Radiowave propagation

Number Category Group Title

212-2/3

(S3) WP3L

Ionospheric properties  

213-3/3

(S3) WP3L

The short-term forecasting of operational parameters for trans-ionospheric radiocommunication and radionavigation services  

218-5/3

(S2) WP3L

Ionospheric influences on satellite systems  

221-2/3

(S3) WP3L

Propagation by way of sporadic E and other ionization  

222-3/3

(S2) WP3L

Measurements and data banks of ionospheric characteristics and radio noise  

225-6/3

(S3) WP3J/WP3L

The prediction of propagation factors affecting systems at LF and MF including the use of digital modulation techniques  

226-4/3

(S2) WP3L

Ionospheric and tropospheric characteristics along satellite-to-satellite paths  

227-1/3

(S3) WP3L

HF channel simulation  
Note - Suppressed on 17/02/12 (CACE/562 )

229-2/3

(S2) WP3L

Prediction of sky-wave propagation conditions, signal intensity, circuit performance and reliability at frequencies between about 1.6 and 30 MHz, in particular for systems using digital modulation techniques  

230-2/3

(S2) WP3L

Prediction methods and models applicable to power line telecommunications systems