Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: Does RF Emission and Glass Sun Roof = Baldness  (Read 981 times)
KG6FGX
Member

Posts: 13




Ignore
« on: March 06, 2001, 09:50:37 PM »

I'm concerned about RF radiation exposure.  I want to install a 50w 2m/440 mobile in my Toyota X-Cab pickup.  The pickup has a glass sunroof.  I intend to install the antenna in the center of the roof 6 inches behind the rear of the sunroof.  While seated, my head and the passengers head is centered below the sunroof, approximately 12 inches in front of and 3 inches below the base of the antenna.  Should I be concerned about RF exposure?  Will window tinting help?  

There is a plastic sunscreen that can be clipped in place, would adding a metal foil to the top side of the sunscreen help.  Would it be necessary to ground the metal foil the the chassis.

Thanks for any advice,
Jim
Logged
WB2WIK
Member

Posts: 20560




Ignore
« Reply #1 on: March 07, 2001, 02:21:54 PM »

Assuming you're serious, there should be no problem at all with the installation you describe, nor any need to modify the car or its sunroof.  A vertical whip antenna fed at its base has a radiation angle that is above the horizon and radiates almost no energy at all below its mounting surface.  We could go through the mathematical formulae to determine exactly what happens, but having done this many times before, trust me: The downwards radiation from a 50W output transmitter in such an installation will be well below the safe radiation limit per the recent FCC directives and should pose no threat at all.

Steve WB2WIK/6
Logged
KG6FGX
Member

Posts: 13




Ignore
« Reply #2 on: March 07, 2001, 07:00:57 PM »

Thanks Steve,
I feel much more comfortable with the proposed location of the antenna installation.  Every strand of hair counts! Smiley

Jim KG6FGX
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!