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We see a lot of strange echoes at but this one is particularly hard to explain.

The tail echo is? seen by NW H Vpol and the co-located test stream which beams vertically up and is in effect vertically polarised . So this tail echo appears to be linearly vertically polarised. With a Doppler shift of about -28Hz the reflection path length is extending at a constant rate of about? 167m/s or 540km/h. The tail echo which lasts for about 10 seconds is narrow ie is not spectrally spread. It is as if a rod like reflector is being carried in the wind and maintaining it's shape as it does so. Has anyone got a better explanation ?

Brian