Icom IC-718 - Manual (Page 24)

22
5
RECEIVE AND TRANSMIT
ï Attenuator
The attenuator prevents desired signals from distorting
when very strong signals are near the desired
frequency or when very strong electric fields, such as
from broadcasting stations, are near your location.
 Push [ATT] to toggle the 20 dB attenuator function
ON and OFF.
• “ATT” appears when the attenuator is turned ON.
Appears when the
attenuator ON.
ï Peak meter hold
The peak meter hold function freezes the highest
displayed bar segment in any meter function for about
0.5 sec. so that you can more easily read the meter.
This function can be turned ON and OFF in initial set
mode (p. 45).
Initial reception of a signal
results in an S-meter reading
of 40 dB.
The highest indicated bar
remains displayed for 0.5 sec.
even when the signal strength
decreases.
ï Noise blanker
The noise blanker reduces pulse-type noise such as
that generated by automobile ignition systems.
q
Push the [NB] switch to turn the noise blanker ON
or OFF.
w Push the [NB] for 1 sec. to enter the noise blanker
level setting condition.
e Rotate the tuning dial to adjust the noise blanker
level.
r Push [NB] to exit the setting condition.
t Push [NB] again to turn the noise blanker function
OFF.
• [NB] indicator disappears.
• When using the noise blanker, received signals
may be distorted if they are excessively strong.
• The noise blanker function in AM mode can
be deactivated depending on initial set mode
setting. (p. 45)
Y Y
[NB] switch