Ham Radio Formula Toolkit Ham Radio Formula Toolkit AC Circuit Impedance Calculator (Z = √(R² + (XL - XC)²)) Resistance (R): Inductive Reactance (XL): Capacitive Reactance (XC): Calculate Clear Close Antenna Gain Calculator (dBi) Input Power (W): Output Power (W): Calculate Clear Close Antenna Length Calculator Frequency (MHz): Calculate Clear Close Bandwidth Calculator Resonant Frequency (Hz): Q Factor: Calculate Clear Close Decibel Calculator (dB = 10 log10(P1/P0)) Power 1 (P1): Power 0 (P0): Calculate Clear Close Far Field Distance Calculator Antenna Diameter (D in meters): Calculate Clear Close Fresnel Zone Calculation Distance 1 (d): Distance 2 (d): Calculate Clear Close Impedance Matching (Quarter-Wave Transformer) Load Impedance (Z1 in Ohms): Transformer Impedance (Z0 in Ohms): Calculate Clear Close LC Circuit Resonant Frequency Calculator Inductance (L in Henrys): Capacitance (C in Farads): Calculate Clear Close Link Budget Calculation Transmitter Power (dBm): Total Gains (dBi): Total Losses (dB): Calculate Clear Close Ohm's Law Calculator Voltage (V): Current (I): Resistance (R): Calculate Clear Close Power Calculator (P = IV) Voltage (V): Current (I): Calculate Clear Close Radiation Efficiency Calculation Input Power (Pin in Watts): Radiated Power (Prad in Watts): Calculate Clear Close Radiation Resistance Calculator Antenna Length (in meters): Calculate Clear Close Receive Power Calculation (Pr = Pt + Gt + Gr - L) Transmit Power (Pt in dBm): Gain of Transmitter (Gt in dBi): Gain of Receiver (Gr in dBi): Loss (L in dB): Calculate Clear Close Voltage Divider Calculator Input Voltage (Vin): Resistance R1 (Ω): Resistance R2 (Ω): Calculate Clear Close
