This is V2 or V2a almost certainly - she's a great introduction to spynumbers if you're not already familiar.
Stop by the companion site to HFUnderground, http://www.spynumbers.com
- this is a pretty good primer on Numbers Stations in general and there's an ongoing database there of loggings and regular frequencies.
Also the Numbers and Oddities mailing lists track these stations and trends in their appearances and schedules: http://home.luna.nl/~ary/
PS: You might already be aware of these, but I thought it would be a good opportunity to throw some more links out here...