NHER 49451 (Monument record) - Possible World War Two High Frequency Direction Finding Station

May 2007. Norfolk NMP.
A World War Two High Frequency Direction Finding Station (HF/DF) is visible on aerial photographs to the east of Newport Road, South Walsham (S1). The site is centred on TG 3658 1233.
The HF/DF sites formed a system of direction finding stations that helped lost aircraft return to base and to plot the location of mayday signals. A wireless or radio mast is located 540m to the southwest (NHER 49452).
The site consists of a circular or polygonal structure approximately 5.5m in diameter. The poor quality of the aerial photographs make any more accurate recording of the structure impossible. If the site is a (HF/DF) then it is likely that it would be hexagonal in shape and may be a ‘wigwam’ constructed of iron and plywood. The structure sits within a square enclosure or fenced off area, 44.5m across, with a path leading south to the edge of the field. This structure has completely been removed by June 1946.
A circular parchmark located 435m north of this structure (NHER 49450) has been interpreted as the remains of an associated gun emplacement, searchlight or similar structure.
S. Massey (NMP), 23 May 2007.