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Enemy Specifications

Power Output of the Enemy Transmitter (ERP)   Watts dBm

Elevation of the Enemy Transmitter Location (AMSL)   meters feet

Enemy Transmitter Location-to-Target Receiver Location Distance   kilometers miles

Friendly Specifications

Elevation of the Jammer Transmitter Location (AMSL)   meters feet

Jammer Location-to-Target Receiver Location Distance   kilometers miles

Terrain and Ground Conductivity Factor   Level terrain (over water, sea, lakes, and ponds) - good conductivity Rolling hills (farmland type terrain) - good conductivity Moderately rough terrain (rolling to high hills, forested farmland) - fair/good conductivity Very rough terrain (rocky mountains or desert) - poor conductivity

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Accurate for frequency modulated (FM) VHF receivers only.

Currently works only for jammer location-to-target receiver distances greater than the enemy transmitter-to-target receiver distance.

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.