Splashers were MF radio beacons, NDBs as has been suggested, and were sited in strategic, mostly coastal positions. They provided a vital service to both RAF and USAAF for accurate heading and position fixing for formations leaving the English coast. They also helped home inbound individual aircraft. To give a few examples, Splasher 4 was at Louth, Spl 5 at Cromer, Spl 6 on Eye airfield in Suffolk, Spl 9 on Beachy Head. Splasher 7 was on Canvey Island.