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RF
Last modified: Monday, May 12, 2003 

Short for radio frequency, any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. Many wireless technologies are based on RF field propagation.

These frequencies make up part of the electromagnetic radiation spectrum:

  • Ultra-low frequency (ULF) -- 0-3 Hz
  • Extremely low frequency (ELF) -- 3 Hz - 3 kHz
  • Very low frequency (VLF) -- 3kHz - 30 kHz
  • Low frequency (LF) -- 30 kHz - 300 kHz
  • Medium frequency (MF) -- 300 kHz - 3 MHz
  • High frequency (HF) -- 3MHz - 30 MHz
  • Very high frequency (VHF) -- 30 MHz - 300 MHz
  • Ultra-high frequency (UHF)-- 300MHz - 3 GHz
  • Super high frequency (SHF) -- 3GHz - 30 GHz
  • Extremely high frequency (EHF) -- 30GHz - 300 GHz

Radio frequency is also abbreviated as rf or r.f..

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Sponsored listings

Pencom: Diplexers and Duplexers, RF - Offers precision machining, turning, milling, screw machining and stamping services, as well as electro-mechanical and thermal management components.

Endress+Hauser: RF - Supplies industrial automation and control, test and measurement, and information system solutions.

Aeroflex Inc.:RF - Develops and manufactures test and measurement and microelectronic solutions for the aerospace, defense and broadband communications markets.


For internet.com pages about RF . Also check out the following links!

Related Links

Minimizing 802.11 Interference Issues 
RF interference will continue to plague current and future 802.11b implementations unless an adequate site survey is conducted - preferably prior to actual network installation.

Tools Simplify 802.11 Deployments
Wireless LAN installation is tricky. The construction of a facility and silent sources of RF interference impact the propagation of radio waves, often in odd ways.

Sponsored listings

Spinner: Diplexers and Duplexers, RF - Supplies full-service applications engineering services, providing quality coaxial connectors and related products for the wireless RF industry.

VXI Technology: Noise Generators and Sources - Supplies high-density modular test instruments and switching systems for both electrical and mechanical test applications.

LXE: RF Electronics - Manufactures handheld RF data collection equipment, including RF antennas, handheld computers and vehicle mount computers.

Digi-Key: RF Solutions RF ICs - Broad-line distributor web site features real-time stock status and pricing, online ordering, RFQ, technical support, product datasheets and photos.

Rhein Tech Laboratories: rf consultants - Regulatory compliance engineering services - including EMI, EMC, and safety testing, EMC design and homologation services (NVLAP accredited)

related categories

Satellite Communications

Wireless Computing

related terms

802.11

EMI

GPR

LOS

NLOS

OFDM

PLL

RFID

UWB

WLAN


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