oo

c .

1

o = 8.85 x 10-12 C2/Nm2

o = 12.56 x 10-7 wb/amp.m

.fc C = kecepatan cahaya (3 x 108 m/s)

= Panjang Gelombang (m)1A0 = 10-10Hz

f = Frekuensi (Hz)1MHz = 106Hz

Gelombang elektromagnetik adalah gelombang yang tidak memerlukan medium dalam perambatannya.

Radiasi elektromagnetik adalah kombinasi medan listrik dan medan magnet yang berosilasi dan merambat lewat ruang dan membawa energi dari satu tempat ke tempat yang lain. Cahaya tampak adalah salah satu bentuk radiasi elektromagnetik.

Name Frequency &Wavelength Aplications

ELF3–30 Hz

100,000 km – 10,000 kmCommunication with submarines

SLF30–300 Hz

10,000 km – 1000 kmCommunication with submarines

ULF300–3000 Hz

1000 km – 100 kmCommunication within mines

VLF3–30 kHz

100 km – 10 km

Submarine communication, avalanche beacons, wireless heart rate monitors,

geophysic

LF30–300 kHz

10 km – 1 kmNavigation, time signals, AM longwave broadcasting, RFID

MF 300–3000 kHz

1 km – 100 mAM (Medium-wave) broadcasts

HF3–30 MHz

100 m – 10 m

Shortwave broadcasts, amateur radio and over-the-horizon aviation

communications, RFID

VHF30–300 MHz

10 m – 1 m

FM, television broadcasts and line-of-sight ground-to-aircraft and aircraft-to-

aircraft communications. Land Mobile and Maritime Mobile communications

UHF300–3000 MHz

1 m – 100 mm

television broadcasts, microwave ovens, mobile phones, wireless LAN, Bluetooth,

GPS and Two-Way Radios such as Land Mobile, FRS and GMRS Radios

= 10-3 - 10-1

S= S= jarak t= waktu (s)

= 1011 - 1014 m

=400 - 800n nm

- 10-7 m= 10-8

- 10-8 m= 10-11

= 10-5 m