The Motorola and GE 2-way mobile radios with noise blankers
were just that ... noise blankers ... that worked in the IF chain
and "blanked" (turned off) the IF's for the duration of a noise pulse.
They were primarily found in "low band" (30 - 50 mHz) radios and
were aimed at ignition noise. The NB's were options and not installed
in every radio.
73! Ken Kopp - K0PP
(Retired career 2-way radio tech)
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