Mr Thompson
In respect to "eye witness" report I fear I may have misinformed you somewhat, my reservations were suggested, however, I momentarily glimpsed the dish whilst is was being removed from the installers van and apparently "saw" what I expected to see.
It is not possible to see the dish from ground level subsequently since your post I have clambered up the adjacent hill and with my 10x50 bin's am able to identify the dish to have emblazon on the face " Triax" and from utilisation of the builtin rangefinder am able to establish the dimeter to be circa 90cm and does not appear to be elliptical at all but circular the colour is "anthracite". This would correlate to their TD range 88cm.
The inclusion of comparative web site links proved with you reply proved exceptionally informative.
In conclusion it was quite inappropriate to make asumptions and should have confirmed the facts prior to posting reply ...apologies.