Icom IC-7800 - D Functions for the PSK Decoder Indication; D Setting the Decoder Threshold Level

4-23
D Functions for the PSK decoder indication
[F-3•AFC/NET] [F-6•MAIN/SUB] [F-7•WIDE]
[F-2•HOLD/CLR]
[RTTY/PSK] [EXIT/SET]
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.
 •WhentunedintoaPSKsignal,decodedcharactersare
displayed in the RX contents screen.
r Push[F-2•HOLD/CLR]tofreezethecurrentscreen.
 •“ ” appears while the function is in use.
 •Push[F-2•HOLD/CLR]againtoreleasethefunction.
tHolddown[F-2•HOLD/CLR]for1secondtoclear
the displayed characters.
•“ ” indicator disappears at the same time as the
displayed characters are cleared. (The hold function is
cancelled.)
yPush[F-3•AFC/NET]toturntheAFCfunctionON.
 •“ ” appears.
• AFC/NET indications
“AFC” and “NET” indicators Offset frequency
  •IfaPSKsignalisreceivedwithintheAFCtuningrange,
the decoder automatically tunes into the signal and the
offset frequency is displayed.
 •TheAFCtuningrangeissetto±15Hzasthedefault.
Optional ±8 Hz setting is available in PSK decode set
mode. (p. 2)
NOTE: The AFC function may not tune the signal
properly when a weak PSK signal is received.
uPush[F-3•AFC/NET]againtoturntheNETfunction
ON.
 •“ ” appears.
iHolddown[F-3•AFC/NET]for1secondtoaddthe
offset frequency to the displayed frequency.
oPush[F-7•WIDE]totogglethePSKdecodescreen
size from normal and wide.
 •S/RFmetertypeduringwidescreenindicationcanbe
selected in display set mode. (pp. 3-11, 12-11)
!0Push[F-6•MAIN/SUB]totoggletheMAINandSUB
band for decode operation.
 •Dualwatchfunction(p.5-17)shouldbeONwhenSUB
band is selected for decode operation.
!1 Push [EXIT/SET] to close the PSK decode screen.
D Setting the decoder threshold level
Adjust the PSK decoder threshold level if some char-
acters are displayed when no signal is received.
q Call up the PSK decoder screen as described
above.
wPush[F-5•ADJ]toselectthethresholdlevelsetting
condition.
e Rotate the main dial to adjust the PSK decoder
threshold level.
 •Holddown[F-6•DEF]for1secondtoselectthedefault
setting.
rPush[F-5•ADJ]toexitfromthethresholdlevelset-
ting condition.
4
RECEIVE AND TRANSMIT