246 Edgeland time by the Hythe Sound Mirror (sleep safe)

Full Episode description

Turn right off the towpath beside the Military Canal, cross the footbridge, locate the stile that leads onto the hill, then follow the rough footpath up into some impressive edgeland. It’s rough. Grassy. Very thistly. And as you ascend it feels hard. Increasingly wild. It’s somewhere up here, we say, striding firm against the gradient. But the thing’s not marked on the map.  

The Sound Mirror of Hythe is a large concrete parabolic dish. A giant ear, pointed out to sea, designed a hundred years ago, pre-RADAR for the early detection of incoming aircraft. Surely, we puff, a structure like this must stand out like a sore thumb? Well no. The steep ground has twists and folds. Ridges and bends that have to be walked. And no military installation worth its salt, however obsolete, is or should ever be easy to find. 

We eventually see huddled low in the grass a squat blockhouse. A derelict radio receiving station, according to one historical website. Then we see the dish itself. A concrete shape, nestled against a steep bank, sadly now in a terrible state, trees growing up through its collapsing sections. Up close the dish is behind substantial chainwire fencing and surrounded by what amounts to a moat of evil shoulder high stinging nettles. Whatever evidence there may be of the ‘listening chamber’ said to reside at the foot of the structure, is not possible to see. It may indeed be buried under broken concrete. 

We stood for a long time. Taking it all in. Despite its state, this dish is still active. Still reflecting and to some extent shaping the aural soundscape around it. Of course only from the listening chamber could one be an ear witness to what this structure was properly designed to do, but knowing that on some level it is still working, still channeling the soundscape from the sky above the sea, is, in a quiet way, thrilling.

We found some shelter for the Lento box behind the radio receiving station, angling its view up the hill to capture both the near and far soundscapes. Near, wild wind whips through the edgeland grasses, a few crickets are cricketing. Mid-distance left, the sound mirror, about 40 yards. You can hear the wind when it catches in the trees growing in and around the dish and sometimes a yellowhammer. Right of scene is the hill rolling down into the valley. At the bottom the military canal. What filters in from behind the Lento box is from the coast and the ocean view. Toot toot of the steam railway that runs from Hythe, Dymchurch, Romney and Dungeness. Occasional distant echoes from circling seagulls and a construction site. Listening back we think some of these sounds at least are being reflected off the dish itself.