LF (Low Frequency)

LF radio is in the frequency range of 30–300 kHz and has a wavelength of

10 km – 1 km. LF radio has applications in navigation, maritime communications, information and weather systems, and time systems. See also electromagnetic spectrum, frequency, Hz, and wavelength.

• security
• security
• security
• security management
• seed rod
• segment
• segmentation
• segmentation and reassembly (SAR)
• seizure
• selective call acceptance
• selective call block
• selective call forwarding
• selective call rejection
• selective ringing
• selector
• selenium
• self-healing
• self-learning bridge
• semiconductor
• send and pray
• sender
• Sequenced Packet Exchange (SPX)
• serial communications
• serial communications
• serial-in, parallel-out (SIPO)