image rejection ratio

Image rejection ratio: In reception using heterodyning in the tuning process, the ratio of (a) the intermediate-frequency (IF) signal level produced by the desired input frequency to (b) that produced by the image frequency. Note 1: The image rejection ratio is usually expressed in dB. Note 2: When the image rejection ratio is measured, the input signal levels of the desired and image frequencies must be equal for the measurement to be meaningful. Synonym: image frequency rejection ratio. Source: from Federal Standard 1037C and from MIL-STD-188

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halftone characteristic
hamming code
hamming distance
handoff
handshaking
hard copy
hard sectoring
harmonic
h channel
heterodyne
heterodyne repeater

heuristic routing
hierarchical routing
high performance equipment
hop
hop count
horn (disambiguation)
hotline
hybrid
hybrid balance
hybrid coil
hybrid routing

hydroxyl ion absorption
name and identifier
image antenna
image frequency
improved definition television
independent clocks
index matching material
index of cooperation
inductive coupling
information bearer channel
information system

information transfer transaction
input
insertion gain
insertion loss
inside plant
intelligent network
intensity modulation
intercept
interchangeability
interchange circuit
intercharacter interval