Electromagnetic Radiation

Statement of Purpose
To transmit and receive electromagnetic waves.

Procedure

First Test: Adjust the frequency of the wave generator to affirm that the waves seen by the receiver (oscilloscope) is indeed a electromagnetic wave.

Second test: The behavior of the wave as the antennae moves towards and away from the receiver. The observation to be made is that the amplitude of the near distance waves is proportional to 1/r^2 and the far distance waves is proportional to 1/r.

Third test: Point the antennae parallel to the receiver and observe the amplitude of the wave. Contrast that observation with the amplitude obtained by pointing the antennae perpendicular to the receiver.

Data

Near distance EM wave

1/r^3

Antennae nearby will emit electromagnetic waves that vary as 1/r^3.

1/r

Antennae far away will emit electromagnetic waves that vary as 1/r.

In an ideal case, the theoretical values would fall off as follows:

Distance (m) Vtheoretical P2P
0
0.05                 0.011631
0.1                   0.005687
0.15                 0.003616
0.2                   0.002704
0.25                 0.002234
0.3                   0.001965
0.35           0.001796

Measurement Uncertainty:

Peak to Peak Voltage
ΔV = ±1mV

Quantization uncertainty for z:
Δz = ±.01m

accounting for BNC adapter length:
Δz = ±.05m

Conclusions 
The effect of the electric pulses sent by the antenna creates a electromagnetic wave that exerts forces on free charges within the receiver antenna, producing an oscillating current.