Ham Radio Calculators — Complete Reference Hub
Every ham radio calculator organised by topic — antenna dimensions, transmission line loss, HF propagation, electronics, impedance matching, digital modes, VHF/UHF, satellite, logging tools, and portable power budgeting. Each category page contains 10–15 fully interactive calculators.
Results
Antenna Calculators
164 calculators
- Dipole, Yagi, Moxon, quad
- Delta loop, J-pole, EFHW
- Loading coil, trap, bandwidth
Transmission Line
11 calculators
- Coax loss, SWR, return loss
- lambda/4 transformer, stub match
- TDR fault location, choke turns
Propagation
10 calculators
- MUF, skip distance, grey line
- Free-space path loss, link budget
- Fresnel zone, solar flux
Electronics
15 calculators
- Ohm's law, power, reactance
- LC resonance, dBm, decibels
- Coil inductance, RC/RL, transformer
Impedance Matching
9 calculators
- L, T and pi networks
- Gamma match, hairpin match
- Balun/UNUN turns, Smith chart
Digital Modes
8 calculators
- WSPR SNR, FT8 link budget
- RBN comparison, baud/bandwidth
- Shannon capacity, noise figure
VHF & Satellite
10 calculators
- Radio horizon, Doppler shift
- Dish gain, EME link budget
- Stacking distance, noise cascade
Logging & Contest
7 calculators
- Grid square, great-circle distance
- UTC converter, CW WPM
- DXCC distance, MUF band check
Power & Portable
8 calculators
- Battery runtime, solar sizing
- DC voltage drop, fuse rating
- QRP field day power budget