WY2U RF Exposure Calculator
Version 3.18.4
Note: Fill in all input boxes on page prior to depressing the Calculate button
Callsign:
Date:
Name:
Station Location:
Email:
Comments / Station Description:
Operating Frequency in MHz:
Xmtr PeP Output Power in Watts:
Actual distance (ft) in Controlled envir:
Antenna Gain (dBi):
Matched Line Loss (dB / 100 ft):
Actual distance (ft) in Uncontrol envir:
Line Length in feet:
Load vswr:
Include ground reflections in calculations
Transmit time (minutes):
Receive time (minutes):
FCC evaluation exemption based on Pep threshold and distance:
Select operating mode for mode duty cycle:
SSB1 (Sngle side band no speech compression, 20% mode duty cycle)
SSB2 (Single side band with heavy compression, 50% mode duty cycle)
CW (Conventional Morse Code CW, 40% mode duty cycle)
AM (Conventional AM speech using clipping or ALC, 35% mode duty cycle)
FM / Tune ( full PeP, 100% mode duty cycle)
Digital modes (RTTY, FT8, FT4, etc., constant envelope modulation 100% mode duty cycle)
Controlled environment status:
Uncontrolled environment status:
Effective rad peak env pwr:
watts
Cont envir average pwr:
watts
Uncont envir average pwr:
watts
Contr xmt duty cycle:
percent
Cont env min safe dist:
feet
Uncont env min safe dist:
feet
Uncontrol xmt duty cycle:
percent
Cont env min safe dist:
meters
Uncont env min safe dist:
meters
Con max pwr density limit:
mw/cm
2
Cont max E field limit:
V/m
Cont max H field limit:
A/m
Calculated act Con P dens:
mw/cm
2
Calculated act Con E fld:
V/m
Calculated Con act H fld:
A/m
Cont Pwr density margin ~
times
Contr E field margin ~
times
Contr H field margin ~
times
Uncont max pwr dens limit:
mw/cm
2
Uncon max E field limit:
V/m
Uncon max H field limit:
A/m
Calculated act Unc P den:
mw/cm
2
Calculated act Unc E fld:
V/m
Calculated act Unc H fld:
A/m
Uncon Pwr dens margin ~
times
Uncon E fld margin ~
times
Uncon H fld margin ~
times
Please send any questions or comments about this application to WY2U: