Admiralty list of radio signals Volume 2 NP282 2008/09 :  radio aids to navigation, satellite navigation systems, legal time, radio time signals and electronic position fixing systems. 

 - Taunton :  Hydrographic Office,  2008 
 - xxiv, 273 p. :  ill. maps. 
<br/><br/> "Admiralty charts and publications."--Cover. 
<br/><br/><label>ISBN: </label>9780707719115 (pbk) :  38.15 GBP 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NAVIGATION AIDS--RADIO SIGNALS