Icom IC-7800 User Manual

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■ Operating PSK
A high-quality DSP-based PSK31 encoder/decoder is
built-in to the IC-7800. When connecting a PC key-
board (p. 2-6), PSK31 operation can be performed
without PSK software installed on your PC.
If desired, you can also use your PSK software; con-
sult the manual that comes with the software.
[TX] indicator [RX] indicator
[F-3•DECODE] [RTTY/PSK][AF] Main dial
Band keys
q Push a band key to select the desired band.
w Push [RTTY/PSK] to select PSK.
 •AfterPSKmodeisselected,holddown[RTTY/PSK]for
1 second to toggle between PSK and PSK-R modes.
 •“PSK”or“PSK-R”appears.
e Push[F-3•DECODE]todisplaythedecoderscreen.
 •TheIC-7800hasabuilt-inPSK31decoder.
r Tune the desired signal with the main dial.
 •Thesignalisproperlytunedwhentheradiatedlinesin
the vector tuning indicator narrow, as show in the exam-
ple below.
 •Theradiatedlinesinthevectortuningindicatormaybe
displayed sporadically.
Appears
  •WhenaPSKsignalisreceived,thewater-falldisplayis
activated.
 •Thewater-falldisplayshowsthesignalconditionwithin
the passband and a vertical line appears when a PSK
signal is received.
t Push [F12] of the connected keyboard to transmit.
 •[TX]indicatorlightsred.
y Type from the connected keyboard to enter the
message 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.
 •Pushoneof[F1]–[F8]totransmittheTXmemorycon-
tents.
FFT scope
Vector tuning indicator
TX buffer screen
RX contents screen
Water-fall
u Push [F12] of the keyboard to return to receive.
✔ For your convenience
The transmission contents can be typed before being
transmitted.
q Perform the steps q to r above.
w Type from the connected keyboard to enter the
message that you want to transmit.
 •ThemessageisshownintheTXbufferscreen.
e Push [F12] of the connected keyboard to transmit
the message.
 •Thecolorofdisplayedtext,intheTXbufferscreen,will
be changed when transmitted.
 •Tocancelthetransmission,push[F12]twice.
r Push [F12] of the keyboard to return to receive.
4
RECEIVE AND TRANSMIT
• Vector tuning indicator indication example
Tuned BPSK signal
BPSK/QPSK idle signal Unmodulated signal
Tuned QPSK signal

Icom IC-7800 Specifications

General

Brand	Icom
Model	IC-7800
Category	Transceiver
Language	English