Possible Title: 
Radio SpellingTheme: Aviation or NATO pronunciation alphabet spelled out to stand for certain initials
Good Ones:Brightness measure, to a pilot   INDIAQUEBEC [I.Q.]
It’s dropped for a trip, to a pilot   LIMASIERRADELTA [LSD trip, that is]
Den centerpiece, to a pilot   TANGOVICTOR [TV]
It’s out on a limb   ARM
Selling point?   EBAY [Echo-Bay? 

]
By the Way:OSCARKILO for OK seems to poke fun at the system’s overkill.  B/D/V/E and M/N, for example, can be hard to distinguish over short wave, etc., but O?
Managed this puzzle in ink with one eye tied behind my back.  

RATING:   
 
  
 
 Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun