Knight has been involved with numerous electronic, radio, scientific
instrumentation and data analysis projects during his career; including
the setting-up of EMC testing laboratories, the design of antenna
systems for cordless telephones, and the design of equipment used in
the field of high-resolution spectroscopy. He was awarded a PhD in microwave
spectroscopy at Bristol University in 1986, and after a
research fellowship at the Daresbury Synchrotron Radiation Laboratory,
worked as a lecturer at Bristol Polytechnic (now UWE), for several
years. He is retired but remains a Director of Cameras
Underwater Ltd., and lives near the town of Ottery St Mary,
Devon, UK. He holds the amateur radio callsign G3YNH (issued in 1968).
1) This is not specifically an amateur radio website, although it does
cover subjects of interest to radio amateurs. The reason for using my
callsign in the URL is that, while there are about 1014
David Knights in the world, there is only one G3YNH.
2) I do not sell radio equipment or electronic parts and I have no
commercial interests in these areas.
The Cameras Underwater
For operational reasons, the Cameras
photography and optics articles are no longer
commercial website, and the camerasunderwater.info domain has been
redirected to the main website (.co.uk). The articles are in the
moved here; but this requires a considerable amount of editing and will take some time. If you
are looking for an
article that has yet to be transferred, contact
and I will make it available. The articles are
me, and in that case, the copyright reverts to me; so please also
contact me if you are looking for permissions.
One reason for moving the articles is that they are no longer strictly
commercially relevant. I was forced to retire in 2011, due to
serious illness, and ceased to carry out maintenance work
or add new information to the company websites at that point.
This created a presentational problem for the info articles,
for which the easiest solution would have been that they should simply
disappear. They do however, represent a huge amount of work
on my part, and while the available equipment might have changed, the
physics haven't. Also, some of the articles that have become
out-of-date are nevertheless of historical
interest. I am therefore reluctant to let them die; so I have
rescued them, edited them to get rid of anything totally useless, and
given them a new home.
Please sign the petition to persuade the BBC to show 'Roads
(1970). If in doubt about this, first listen to Georgia Brown singing 'La route est dure'