The LARS sheet (similar probably to what is found near the front of the Pooleys guide) tends to be known GA supporting LARS services (like Farnborough and some of the military outfits). What it doesnt show is your Luton's, London City, or other commercial airport radar services. Plus a lot of the military ones are weekend only.
In most cases the commercial airports will give you a radar service if they have the availability, you sound competent, or it might affect their control of their commercial traffic. If you really need radar (e.g. because of low viz or being in IMC), you could try saying G-xxxx, ..., in IMC, request radar service, and they might help you out where they normally wouldnt. You just have to look close at the CAA chart to spot them.
Last edited by piperarcher; 6th Aug 2013 at 11:08.