Dear Lewis, I am not sure that you can photograph UV with a digital camera. If there is any glass (lenses) in the optic path it will absorb the UV. 73, Rik ON7YD At 15:37 3/05/2006 -0500, you wrote:
Hi Peter, I don't know if Photo meter is sensitive to UV or not, you could turn all the lights out and see if you get a reading. or take a piece of film and see if you get anything. If you have a dig
Hello Peter and all, That's interesting about the tape. [...] That was my first thought to check the colour, unfortunately the colour itself did not degrade. It was the blue tape, and the blue tape d
From G3PLX: Marek: That's interesting about the tape. I cannot picture exactly what you have there, but it's well-known that some materials will degrade (e.g. lose colour) quickly when exposed to UV,
Hello Peter, I think that some colour magazine in Poland added an 'UV checker' in the past, if I don't find it, maybe it will appear again this summer. It was a piece of plastic with a field changing
This would be a good quick test in the absence of instrumentation. An UV photometer is not inexpensive. However, I would still not overlook better shielding for the transmitter. To date I have not s
From G3PLX: Marek: My suggestion about UV was based on your description of the symptoms, and it sounds as if you agree with this, but I think it would be most useful if, before you modify the install
Hello Rik and all, Now I am nearly sure this was the UVB, the result is almost like spending too much time at the sun, with the skin dry etc. This happened only on the side of my face directly expose
Marek, UV-light can cause irritation (or "burning") of the skin at intensities far below what can be detected by UV-sensitive markers. It's just a matter of how long you are exposed to it. Maybe you
Hello Peter, The 'rash' or 'burning' effect makes me think of sunburn or exposure to ultra-violet light. Could it be that there is some ionisation, perhaps due to high voltages, which gives off UV ra
Hello John and thank you for the reply. [email protected] wrote: Marek, I am not aware of effects like yours being reported from exposure to much stronger LF fields at LORAN sites and other transmitti
From Peter G3PLX: Marek: The 'rash' or 'burning' effect makes me think of sunburn or exposure to ultra-violet light. Could it be that there is some ionisation, perhaps due to high voltages, which giv
Hi Marek Engineers and other workers at Rugby and Criggion worked in the presence of very high LF RF fields without (to my knowledge) adverse affects. There have been other high power LF transmitters
Marek, I am not aware of effects like yours being reported from exposure to much stronger LF fields at LORAN sites and other transmitting facilities. The magnetic field 2 meters from a loading coil h
Dear LFers, It happened to me for the 4th time. After long activity on LF I got a rash (or heat) on my face. Previously I related it to other things (like food, my dog etc.). Now, when I was inactive
