receiver signal-to-noise ratio (RSNR)

jam to signal ratio (J/S ratio)

signal-to-noise ratio (SNR; S/N)

signal-to-interference-plus-noise ratio (SINR)

reduction ratio / gear ratio

Voltage Standing Wave Ratio (VSWR) / voltage standing-wave ratio

Minimum RSNR value

RSNR Value

when RSNR value is below alarm setting

Your receiver has just recovered from receiver failsafe but the arm switch is on

single-signal receiver

No valid receiver signal is detected

Signal Kit / MK-79 (illumination signal kit)

noise floor; noise level

aspect ratio

fighter-to-administrative personnel ratio

high expansion-ratio

mass ratio

power-to-weight ratio

thrust-to-weight ratio

damping ratio

attenuation ratio

base pressure ratio

weight-horsepower ratio

weight-strength ratio

depression ratio

explosion ratio

infantry-armor ratio

forward gear ratio

fuel-air ratio

fuselage fineness ratio

compression ratio

engine pressure ratio (EPR)