Localizer?

[Tchkinjiu]

"Blah blah, descend and maintain 3,500 feet until established with the localizer...etc"

[KDSM]

[quote]"Blah blah, descend and maintain 3,500 feet until established with the localizer...etc"

[Boss_BlueAngels]

"established" refers to case break - or when the needles start to move.  Once they begin to move you descend to your next altitude.  

You don't begin the descent (if you are doing an ILS) unless you are at the glide-slope intercept altitude.  At least in real life, there is a "false glide slope" which can deceive you if you are at the incorrect altitude.  

[Tchkinjiu]

[quote]"established" refers to case break - or when the needles start to move.