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Message |
    
Flying_cloud
Member
Username: Flying_cloud
Post Number: 66
Registered: 4-2009
| | Posted on Friday, June 26, 2009 - 2:57 am: | 
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I have seen several RF safety calculators and safety info but, Does anyone know what happens to you if you have too much RF exposure and at too high of wattage?
Flying High and Flying Proud!!!!!!!!
CEF# 1028
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Bruce
Senior Member
Username: Bruce
Post Number: 5111
Registered: 9-2003
| | Posted on Friday, June 26, 2009 - 5:35 am: |
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Yes your brain cooks and you get cararacts ....
http://www.wirelessconnections.net/calcs/rfsafety.asp
I worked in MMW radars back 30 years ago 100 MILLION watts ERP at 96 GHZ ....... and you could cook a duck on a pond with them.
Being stupid with high power can get you hurt ...
The people who run 20,000 watts need to think safety or be ready to lose a few brain cells ....
On 6 since 66
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Flying_cloud
Member
Username: Flying_cloud
Post Number: 67
Registered: 4-2009
| | Posted on Saturday, June 27, 2009 - 2:19 am: |
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Thanks bruce,
I just never saw any posts about what happens when you have too much RF exposure
Flying High and Flying Proud!!!!!!!!
CEF# 1028
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Moderator136
Moderator
Username: Moderator136
Post Number: 1568
Registered: 4-2005
| | Posted on Saturday, June 27, 2009 - 4:54 pm: |
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When you take your Ham or Amateur Test a lot of the questions come up on RF Exposure And needs to be for safety reasons.
Rf is much like microwave cooks you from inside out.
Iv seen what they call shootouts (I think that's what it called) on the internet, Im sorry that's just plain stupid or nuts. 20 to 50 thousand watts. You are in harms way No Doubt. What or should i say watt you doint see or feel can KILL you.
Life is short it's best to play Safety and injoy the radio hobbie as you can.
Hal~Moderator136~KCØSVC
CEF#0136/CEF HAM#23 ~ CVC#0004
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Starface
Senior Member
Username: Starface
Post Number: 2495
Registered: 1-2005
| | Posted on Sunday, June 28, 2009 - 12:51 am: |
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Plus the VEC also has you sign a RF paper stateing you have read and understand about RF before you get your Tech License.
I still have mind.
So if your thinking of becoming a Ham you'll learn a lot of the basic of RF Safty.
George
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Flying_cloud
Member
Username: Flying_cloud
Post Number: 69
Registered: 4-2009
| | Posted on Sunday, June 28, 2009 - 7:53 pm: |
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thanks I do plan on being a ham operator
Flying High and Flying Proud!!!!!!!!
CEF# 1028
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Moderator136
Moderator
Username: Moderator136
Post Number: 1572
Registered: 4-2005
| | Posted on Sunday, June 28, 2009 - 11:51 pm: |
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Hey that's great Flying_cloud
You ask Questions and we do try to help you.
If you need any help with Questions on getting your Amature License I will bet 99.9% of all the ham's here will help you.
73
Hal~Moderator136~KCØSVC
CEF#0136/CEF HAM#23 ~ CVC#0004
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Tech833
Moderator
Username: Tech833
Post Number: 1715
Registered: 8-2002
| | Posted on Monday, June 29, 2009 - 11:09 am: |
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The first thing that happens is tissue warming.
Next, and over the long term, cells are damaged. Some of those cells repair once the RF exposure has ceased, some never repair.
It is worth noting that many people are resonant around 27 MHz. That is why 27 MHz. is used for the new RF focused cancer treatments, and 13.5 MHz (double that and it equals 27 MHz.) is used for diathermy.
Hams gave up the 27 MHz. band many years ago. The theory was for creating the low power (5 watts or less) CB band since the lower power levels were deemed safe at 27 MHz. Guys running high power on 27 MHz. may have problems down the road. |
Flying_cloud
Member
Username: Flying_cloud
Post Number: 70
Registered: 4-2009
| | Posted on Monday, June 29, 2009 - 10:53 pm: |
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thanks Moderator136 I like to think that the only dumb question is the one never asked.
Thank you Tech833 I did not know that about people are resonant around 27 MHz. and thanks about the history lesson on ham and cb thats COOL!
Flying High and Flying Proud!!!!!!!!
CEF# 1028
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Tech237
Moderator
Username: Tech237
Post Number: 1191
Registered: 4-2004
| | Posted on Tuesday, June 30, 2009 - 4:26 pm: |
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and then there was the photographer who walked into a Radar transmitter shack to photograph the Air Forces new radar system. He had a pocket full of magnesium style flash bulbs, and shortly there after trousers around his ankles.
Simon
Tech237
N7AUS
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I thought he said, "there was no rust for the wicked, and I own an MGB"
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