4-6
4
RECEIVE MODES
■ Operating AM
q Edit the desired frequency using the keypad.
w Push [AM] to select AM.
•“ ” indicator appears.
• After AM mode is selected, push and hold [AM] for 1
sec. to toggle between AM and S-AM modes.
e Rotate the main dial to tune the desired frequency.
• [RX] indicator lights green and the S-meter indicates re-
ceived signal strength when signal is received.
r Rotate [AF] to set audio to a comfortable listening
level.
DD
Convenient functions for AM
• Preamp (p. 5-9)
➥ Push [P.AMP] several times to set the preamp
OFF, preamp 1 ON or preamp 2 ON. Only
ON/OFF is available above 30 MHz.
•“P.AMP1” or “P.AMP2” appears when the preamp 1 or
preamp 2 is ON below 30 MHz. “P.AMP ON” appears
above 30 MHz.
• Attenuator (p. 5-9)
➥ Push [ATT] several times to set the attenuator in
6 dB steps for HF bands, or 10 dB step for
30–1150 MHz. Only 20 dB is available for
1150–3335 MHz.
•“ATT” and attenuation level appear when the attenu-
ator is ON.
• Noise blanker (p. 5-15)
➥ Push [NB] switch to turn the noise blanker ON
and OFF, and then rotate [NB] control to adjust
the threshold level.
• Noise blanker indicator (above [NB] switch) lights
when the noise blanker is ON.
• Push [NB] for 1 sec. to enter noise blanker set mode.
• Noise reduction (p. 5-16)
➥ Push [NR] switch to turn the noise reduction ON
and OFF.
• Rotate [NR] control to adjust the noise reduction
level.
• Noise reduction indicator (above [NR] switch) lights
when the noise reduction is ON.
•Twin PBT (passband tuning) (p. 5-11)
➥ Rotate [TWIN PBT] controls (inner/outer).
• Push [PBT CLEAR] to clear the settings.
• Auto notch filter (p. 5-16)
➥ Push [ANF] switch to turn the auto notch function
ON or OFF.
• Notch indicator (above [ANF] switch) lights when the
auto notch is ON.
• Manual notch filter (p. 5-16)
➥ Push [NOTCH1] or [NOTCH2] switch to turn the
manual notch function ON or OFF.
• Rotate [NOTCH] control to set the notch frequency.
• Notch indicator (above [NOTCH1] or [NOTCH2]
switch) lights when either the manual notch is ON.
• AGC (auto gain control) (p. 5-10)
➥ Push [AGC] switch several times to select
AGC FAST, AGC MID or AGC SLOW.
➥ Push [AGC VR] to turn the AGC time constant
manual setting ON or OFF.
• Rotate [AGC] control to adjust the time constant.
• Auto tuning function (p. 5-17)
➥ Push [AUTOTUNE] to turn the auto tuning func-
tion ON or OFF.
• The receiver automatically tunes the desired signal
within ±5 kHz range.
IMPORTANT!
When receiving a weak signal, or receiving a signal
with interference, the automatic tuning function may
not tune, or may tune to an undesired signal.
