N-GEN Communications Web-based Seminars ©NGCS

Seminar - An Overview of Communications Technologies


Home

 

Module 9 - Wireless Systems and Technologies                                                                                   Slide 4 of 80                                                                                                    ________________

    Radio Frequency Spectrum

Frequency Band Symbol Frequency Range
Extremely Low Frequency ELF Below 300 Hz
Infra Low Frequency ILF 300 Hz - 3 K Hz
Very Low Frequency VLF 3 K Hz - 30 K Hz
Low frequency LF 30 K Hz - 300 K Hz
Medium Frequency MF 300 K Hz - 3 M Hz
High Frequency HF 3 M Hz - 30 M Hz
Very High Frequency VHF 30 M Hz - 300 M Hz
Ultra High Frequency UHF 300 M Hz - 3 G Hz
Super High Frequency SHF 3 G Hz - 30 G Hz
Extremely High Frequency EHF 30 G Hz - 300 G Hz
Tremendously High Frequency THF 300 G Hz - 3 T Hz

                                                                                                   ________________

Frequency bands within the Radio Frequency spectrum are assigned to different applications by the authorized national and international bodies.