Networks relate calculation

Unit Conversion

Frequency

1Hz = 10e-3 kHz = 10e-6 MHz = 10e-9 GHz

Second

• us = microsecond

  1s = 10e3 ms = 10e6 us
  

  Meter

  1m = 10e2 cm = 10e3 mm = 10e6 um
  

  dBm and mW, dBW and W

  ``` n dBm = 10en mW +3 dBm = *2 mW -3 dBm = /2 mW

W = 10e3 mW

## Calculation
### Period, Frequency and Wavelength
* T = period
* f = frequency
* λ = wavelength
* C = Speed of Light (299,792,458 m/s) 

T = 1/f λ = C/f T(s), f(Hz), λ(m)

### Phase difference between two waves
* ø = phace angle difference
* f = frequency
* Δt = time delay between two waveform
* [reference](https://voltage-disturbance.com/power-quality/calculating-phase-difference-between-two-waves/)

ø = 360 * f * Δt

```