Operating Rtty (Fsk); D Convenient Functions For Receive - Icom IC-756PROIII Instruction Manual

■ Operating RTTY (FSK)

[TRANSMIT] [TX] indicator [RX] indicator Band keys
[AF] [CW/RTTY]
D D Convenient functions for receive
• Preamp (p. 57)
➥ Push [P.AMP] several times to set the preamp
OFF, preamp 1 ON or preamp 2 ON.
• "P.AMP1" or "P.AMP2" appears when the preamp 1 or
preamp 2 is set to ON, respectively. (depending on
operating frequency band)
• Attenuator (p. 57)
➥ Push [ATT] several times to set the attenuator in
6 dB steps.
• "ATT" and attenuation level appear when the attenua-
tor is set to ON.
• Noise blanker (p. 64)
➥ Push [NB] switch to turn the noise blanker ON
and OFF.
• Noise blanker indicator (in [NB] switch) lights when
the noise blanker is set to ON.
➥ Push [NB] for 1 sec. to enter the noise blanker
level set mode, then rotate the tuning dial to ad-
just the threshold level.
When using your RTTY terminal or TNC, consult the
manual that comes with the RTTY terminal or TNC.
q Push a band key to select the desired band.
w Push [CW/RTTY] to select RTTY.
• After RTTY mode is selected, push [CW/RTTY] for 1
sec. to toggle between RTTY and RTTY-R modes.
• "RTTY" or "RTTY-R" appears.
e Push [(F-3)DECODE] to display the decoder
screen.
• The IC-756PROIII has a Baudot decoder.
r Rotate the tuning dial to simultaneously tune a de-
Tuning dial
sired signal.
• The S-meter indicates received signal strength when
signal is received.
t Push [TRANSMIT] to transmit.
• The TX indicator lights red.
y Type from the connected PC's keyboard to enter
the contents that you want to transmit.
• The text color will be changed when transmitted.
• Press one of [F-1] to [F-4] to transmit the TX memory
contents.
u Push [TRANSMIT] to return to receive.
• Twin PBT (passband tuning) (p. 60)
➥ Rotate [TWIN PBT] controls (inner/outer).
• Push [PBT CLR] to clear the settings.
• Noise reduction (p. 65)
➥ Push [NR] switch to turn the noise reduction ON
and OFF.
• Rotate [NR] control to adjust the noise reduction level.
• Noise reduction indicator (in [NR] switch) lights when
• AGC (auto gain control) (p. 59)
➥ Push [AGC] switch several times to select
AGC FAST, AGC MID or AGC SLOW.
➥ Push [AGC] for 1 sec. to enter the AGC set
mode.
• Rotate the tuning dial to adjust the time constant.
function (p. 27)
• 1 ⁄
4
➥ Push [1/4] to turn the
RECEIVE AND TRANSMIT
the noise reduction is set to ON.
1 ⁄ function ON and OFF.
4
4
4
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