Icom IC-R9500 Instruction Manual - Page 81

■ Noise blanker [NB] [NB] control D NB set mode • NB1 set mode NB1 Depth Set the noise attenuation level from 1 to 10. NB1 Width Set the noise pulse width from 1 to 100. • NB2 set mode NB2 Depth Set the noise attenuation level from 1 to 10. NB2 Width Set the noise pulse width from 1 to 100. 5 RECEIVE FUNCTIONS The noise blanker eliminates pulse-type noise such as the noise from car ignitions. The noise blanker is not available for FM, WFM or P25 mode. q Push [NB] several times to select the noise blanker function, NB1 or NB2, and OFF. • [NB] indicator above this switch lights green. • " NB1 " or " NB2 " appears on the display when either is ON. wRotate [NB] control to adjust the noise blanker threshold level. When using the noise blanker, received signals may be distorted if they are excessively strong or the noise type is other than pulsing. Turn the noise blanker OFF, or rotate [NB] control to a shallow position in this case. To deal with various type of noises, attenuation level and noise width can be set in NB set mode. Two of noise blanker, NB1 and NB2, can be set independently. q Turn ON the desired noise blanker, NB1 or NB2. • When entering NB1 set mode, this step can be skipped. w Push and hold [NB] for 1 sec. to enter NB1 (or NB2) set mode. e Push [F-1•Y] or [F-2•Z] to select the desired item. r Rotate the main dial to set the desired level or value. • Push and hold [F-4•DEF] for 1 sec. to select a default value. t Push [EXIT/SET] to exit NB1 (or NB2) set mode. 8 40% 8 80% 5-15