ERP Calculator | W2NAP.com

01: Enter Transmitter Watts Output Power to the Duplexer.

02: Enter Manufacturers Duplexer Loss in db.
Enter 0 if you don't have a duplexer

03: Calculated Duplexer Power Loss in Watts.

04: Enter Manufacturers cable loss in db per 100 feet.

05: Enter Length of Feedline in feet.

06: Calculated feedline loss in db.

07: Calculated Power loss in feedline in watts.

08: Total watts lost.

09: Power to the Antenna.

10: Enter Antenna Gain in dBd (over dipole).

11: ERP Calculated Effective Radiated Power in watts.

12: Duplexer db loss Calculated.

13: Enter Receiver Sensitivity at Receiver in microvolts.

14: Calculated Receiver Sensitivity at Antenna input on Tower in microvolts.

15: Clear form