1-6
#3 MULTI-FUNCTION SWITCHES
Push to select the functions indicated in the LCD
display to the right of these switches.
• Functions vary depending on the operating condition.
MF1 (MULTI-FUNCTION 1 SWITCH)
➥ Selects the antenna connector from
ANT1, ANT2, ANT3 and ANT4 when
pushed. (p. 10-2)
➥ Displays antenna selection memory
when pushed and held for 1 sec.
• When the receive antenna is activated,
the antenna connected to [ANT4] is used
for receive only.
When a transverter is in use, this [ANT]
does not function and ‘TRV’ appears.
MF2 (MULTI-FUNCTION 2 SWITCH)
➥ Selects RF power
(Po), SWR, ALC,
COMP, VD or ID metering during trans-
mit. (p. 3-10)
➥ Switches the multi-function digital
meter ON and OFF when pushed and
held for 1 sec. (p. 3-10)
MF3 (MULTI-FUNCTION 3 SWITCH)
➥ Selects one of 2 receive RF preamps
or bypasses them. (p. 5-9)
•“P. AMP1” activates 10 dB preamp.
•“P. AMP2” activates 16 dB high-gain pre-
amp.
✔
What is the preamp?
The preamp amplifies signals in the receiver front end to
improve S/N ratio and sensitivity. Select “P. AMP1” or “P.
AMP2” when receiving weak signals..
MF4 (MULTI-FUNCTION 4 SWITCH)
➥ Selects 6 dB, 12 dB or 18 dB attenua-
tor when pushed. (p. 5-9)
➥ Turns the attenuator function OFF
when pushed and held for 1 sec.
(p. 5-9)
✔
What is the attenuator?
The attenuator prevents a desired signal from being dis-
torted when very strong signals are near the desired fre-
quency, or when very strong electromagnetic fields, such
as from a broadcasting station, are near your location.
