speckling

Graininess that appears in a degraded optical signal caused when perfectly coherent light

waves travel slightly different physical paths, or modes, and interfere with each other. See also coherence.

• HDX (Half DupleX)
• headend
• header
• header compression
• header error control (HEC)
• header suppression
• headroom
• Hearing Carry Over (HCO)
• heavy carrier
• heavy metal
• HEC (Header Error Control)
• Hellenologophobia
• henry (H)
• Hertz, Heinrich Rudolf (1857–1894)
• Hertz (Hz)
• Hexadecimal
• hexadecimal notation (hex)
• hexadecimal notation (hex)
• hex (hexadecimal notation)
• HFC (Hybrid Fiber/Coax)
• HF (High Frequency)
• HF (High Frequency)
• high bit-rate digital subscriber line (HDSL)
• high capacity voice (HCV)
• high-cost area