#!/usr/bin/perl #!/usr/local/bin/perl -T ## --> Maximum Jammer Distance, jamdis.main.cgi ## --> Green Bay Professional Packet Radio, www.gbppr.org ## This file Copyright 2003 under the GPL ## NO WARRANTY. Please send bug reports / patches / reports. # Setup # select STDOUT; $| = 1; # User stuff # my $pic = "pics/jammin.png"; my $form = "./jamdis.cgi"; # Print MIME # print "Content-type:text/html\n\n"; # Draw me a web page # print < Maximum Jammer Distance

Maximum Jammer Distance

A service of Green Bay Professional Packet Radio ®

[jamdis]


Enemy Specifications


Power Output of the Enemy Transmitter (ERP)  
Elevation of the Enemy Transmitter Location (AMSL)  
Enemy Transmitter Location-to-Target Receiver Location Distance  


Friendly Specifications


Power Output of the Jammer Transmitter (ERP)  
Elevation of the Jammer Transmitter Location (AMSL)  
Terrain and Ground Conductivity Factor  

Accurate for frequency modulated (FM) VHF receivers only.

Jammer location must have a reasonable line-of-sight propagation path to the target receiver's location with no high hills between the two locations.

ERP  Effective Radiated Power.  Actual power output after taking into account feedline losses and antenna gains.

AMSL  Above Mean Sea Level.  Height referenced above sea level, or zero elevation.

EOF