Icom IC-7700 User Manual

• Vector tuning indicator display example
Tuned BPSK signal
BPSK/QPSK idle signal Unmodulated signal
Tuned QPSK signal
4-21
■ Operating PSK
A high-quality DSP-based PSK31 encoder/decoder
is built-in to the IC-7700. 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.
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 [DECODE]
F-3
to display the decode
screen.
 •TheIC-7700hasabuilt-inPSK31decoder.
r Tune to 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ex-
ample below.
 •Theradiatedlinesinthevectortuningindicatormaybe
displayed sporadically.
 •WhenaPSKsignalisreceived,thewaterfalldisplayis
activated.
 •
The waterfall display shows the signals within the pass-
band. Received PSK signals appear as vertical lines.
t Press [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displayedintheTXbuffer
screen and transmitted immediately.
 •Thetextcolorwillchangewhentransmitted.
 •Pressoneof[F1]–[F8]totransmittheTXmemorycon-
tents.
u Press [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 Press [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,press[F12]twice.
r Press [F12] of the keyboard to return to receive.
FFT scope
Vector tuning indicator
TX buffer screen
RX contents screen
Waterfall
Appears
[TX] indicator [RX] indicator
[AF] Main dial
Band keys
RTTY/PSK
F-3
DECODE
4
RECEIVE AND TRANSMIT

Icom IC-7700 Specifications

General

Brand	Icom
Model	IC-7700
Category	Transceiver
Language	English