can i get sick from R.F.?

Question

i have a ham radio that will put out just under 1500 watts. My antenna is about 60 feet directly above where my base radio is(the antenna is on a mast on top the house.) all my coax is new and good quality RG-8 and the connections are good and tight. I have heard of people getting r.f. burns and such. is it possible bieng this close i could get sick or injured?

Answer 1

Illness from RF Energy is usually related to very very short rf frequency emissions such as those in the microwave or near microwave region. Such illness is related to heating by the RF energy.

Yes, you could be seriously injured by being in the direct path of 1500 watts RF output at microwave frequencies. That is why specific warning lables are placed on Radar antennas and microwave ovens. If you move out of the focused beam of energy, the possibility of injury goes down considerably. It even diminishes with the square of distance from the source. To be honest, however, normal consumer radar devices are of a pulse output design and not even close to 1500 watts continuous rf output. When you contemplate military megawatt radar installations you need to stay well away from the radiated field of those systems. Permanent injury will result from exposure at those energy levels/frequencies.

However, operation of radio equipment in the HF or VHF/UHF spectrum should not cause any problem. People have been doing it for years and years without reported problems. Consider the job of a Broadcast Radio Engineer at a Commercial Radio or Television station... Those people operate equipment with RF outputs from 1 KW to as much as 100 KW with no adverse affect in the HF/VHF/UHF region of the RF spectrum. Suitable shielding can be installed to reduce or eliminate suspected ill effects as deemed necessary, however. Well bonded and grounded copper/bronze screen wire may be installed to isolate a small room from suspected rf energy harm if you desire.

Serious RF burns may result from touching exposed conductors carrying live RF at any HF/VHF/UHF frequency. Those burns might be compared to sticking your hand inside a microwave oven. The burn is caused by the heating effect of RF energy. Avoid this problem by switching off the transmit key before doing repairs or adjustments to antennas, feed lines, and grounding points. RF burns may also become possible on equipment enclosures and the shields of feedlines when high SWR operations occur. This is often the case when using long wire or other end fed wire antennas and mistuned antenna tuners. So, it is adviseable to keep a close watch on your SWR to prevent those situations.

Answer 2

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Answer 3

Take an am radio (portable) and feel around,the screen of my computer is very disruptive,also my printer.
Some people get sick from wireless computer systems.I have heard of people changing jobs because of it.