RF Spreadsheet now online
/Andy Foad (G0FTD) has made a collection of RF calculations available in an online Google spreadsheet.
Amongst the calculations are:
- RF Loss though concrete
- Barometric pressure conversions
- Maidenhead distance and beam heading calculator
- Audio filters (RC networks)
- Unknown feeder impedance calculator
- Loop antenna impedance calculator
- FM bandwidth (Carson's rule) now includes modulation index.
- L network matching component values<
- Capacitive and inductive reactances
- Bandwidth tuned circuit
- Radio range and VHF/UHF/Microwave
- Freespace path loss
- Resonance series tuned circuit
- Resonance // tuned circuit
- Power received from tx to rx
- Groundwave range calculation
- Near field (REACTIVE) region of an antenna
- Calculation of skin effect on conductors (2 methods)
- Series Resistance calculator for LED's, Lamps and crude nicad charging
- Impedance calculator including phase and power factor and relative SWR.
- Quarter wave transformer calculator
- Electrical quarter wave calculator
- Impedance of custom air spaced coax
- Air spaced capacitor designer
- All of Ohms law and power laws
- Conversion of AC and DC values RMS etc
- Conversion of milliwatts to dbm
- Conversion of dbuV to dbm
- Amidon cores inductance designer and related info included.
- Power and voltage decibel ratio's.
- Coax losses and approx capacity per 30cm
- Coax voltage breakdown and capacity per foot
- Single layer air cored inductance designer
- Capacitor markings guide
- SPARK GAP DISTANCES
- Resonant speaker tubes to act as CW peak filters
- db versus multiplication factor both power and voltage
- Galactic noise levels
- uV to dbm converter
- Milliwatts to dbm converter
You can download the spreadsheets from https://sites.google.com/site/g0ftdradio/home/rf-spreadsheets