the barnet cabinets in the trial appear to be one near 'Hadley Wood' station (26), and 2 in Arkley, (41,42) (one opposite the Arkley pub, and the other at the top of Quinta drive)
I did see something suggesting they were also testing about interference from radio stations, and the arkley ones are very close to the 'Saffron Green' transmitter.
Edited by ggremlin (Fri 28-Jun-13 20:41:58)