4
2
PANEL DESCRIPTION
■ Front panel (continued)
!4 AF CONTROL [AF] (inner control)
Varies the audio output level from the speaker for
the SUB band.
!5 SET•MENU SWITCH [SET•MENU] (p. 55)
➥ Push this switch then one of [FM],
[SSB/CW], [RIT], [SCAN], [NR], [TRANS-
MIT], [COMP], [VOX], [ATT], [SWP],
[MPW] or [SPCH] to enter the indepen-
dent item set mode.
➥ Push for 1 sec. to enter the set mode for
commonly used item settings.
!6 ATTENUATOR•PRE-AMP SWITCH [ATT•P.AMP]
➥ Push to switch the attenuator function
ON and OFF. (p. 29) Use this function to
protect from signal distortion from exces-
sively strong signals.
•The attenuation level is independently ad-
justable for 144 MHz or 430(440) MHz band
in the ATT set mode. The optional 1200 MHz
band attenuation level is fixed and is approx.
20 dB. (p. 65)
➥ Push for 1 sec. to switch the connected
pre-amplifier ON and OFF, when an op-
tional pre-amplifier unit, AG-25, AG-35
and/or AG-1200, is connected. (p. 16)
DO NOT connect any equipment, such as an SWR
or power meter between the transceiver and pream-
plifier. In such case, the preamplifier may not acti-
vate properly.
!7 AUTO FREQUENCY CONTROL/NOISE
BLANKER•NOISE REDUCTION SWITCH
[AFC/NB•NR]
➥ During FM/FM narrow mode operation,
push to switch the AFC (Automatic Fre-
quency Control) function ON and OFF.
(p. 28)
•Automatically tunes the operating frequency,
when an off-frequency signal is received, in
100 kHz steps. This function also follows the
signal even if the frequency is shifted.
➥ During SSB or CW mode operation, push
to switch the noise blanker function ON
and OFF. (p. 30)
•Reduces pulse-type noise, such as ignition
noise from a vehicle.
➥ Push for 1 sec. to switch the noise re-
duction function ON and OFF when an
optional DSP unit, UT-106, is installed.
(p. 31)
•Reduces unwanted noise and pulls out the
desired signal only for clear readability.
