Operating Psk - Icom IC-7800 Instruction Manual

■ Operating PSK

[TX] indicator [RX] indicator
[AF] [F-3•DECODE] [RTTY/PSK]
Appears
TX buffer screen
FFT scope
RX contents screen
Water-fall
Vector tuning indicator
• Vector tuning indicator indication example
Tuned BPSK signal
BPSK/QPSK idle signal
Band keys
Main dial
Tuned QPSK signal
Unmodulated signal
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RECEIVE AND TRANSMIT
The PSK31 encoder/decoder is built-in to the IC-7800.
When connecting a PC keyboard (p. 2-6), PSK31 op-
eration can be performed without a PSK operation soft-
ware installed PC.
When using your PSK operation software, consult the
manual that comes with the software.
q Push a band key to select the desired band.
w Push [RTTY/PSK] to select PSK.
• After PSK mode is selected, push [RTTY/PSK] for 1 sec.
to toggle between PSK and PSK-R modes.
• "PSK" or "PSK-R" appears.
e Push [F-3•DECODE] to displays the decoder screen.
• The IC-7800 has a PSK31 decoder.
r Tune to the desired signal with the main dial.
• The signal is tuned when the radiated lines in the vector
tuning indicator narrow as in the example below.
• The radiated lines in the vector tuning indicator are dis-
played in sporadically.
• When a PSK signal is received, the water-fall indicator is
activated.
• The water-fall indicator shows the signal condition within
the passband width and a vertical line appears when a
PSK signal is received.
t Rotate [AF] to set the audio to a comfortable listen-
ing level.
y Press [F12] of the connected keyboard to transmit.
• [TX] indicator lights red.
u Type from the connected keyboard to enter the con-
tents that you want to transmit.
• The typewritten contents are indicated in the TX buffer
screen and transmitted immediately.
• The text color will be changed when transmitted.
• Press one of [F1]–[F8] to transmit the TX memory con-
tents.
i Press [F12] of the keyboard to return to receive.
o Push [TRANSMIT] to return to receive.
✔ For your convenience
The transmission contents can be typewritten before
being transmit.
q Perform the steps q to r above.
w Type from the connected keyboard to enter the con-
tents that you want to transmit.
• The typewritten contents are indicated in the TX buffer
screen.
e Press [F12] of the connected keyboard to transmit
the typewritten contents.
• The color of displayed text, in the TX buffer screen, will
be changed when transmitted.
• To cancel the transmission, press [F12] twice.
r Press [F12] of the keyboard to return to receive.
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